Merge branch 'master' into next-8-dev

.flowconfig

@@ -14,6 +14,7 @@ codemods/*/src
 lib/file.js
 lib/parser.js
 lib/third-party-libs.js.flow
+lib/preset-modules.js.flow
 packages/babel-types/lib/index.js.flow
 
 [options]

.github/ISSUE_TEMPLATE/Npm_error.md

@@ -0,0 +1,18 @@
+---
+name: "\U0001F4E6 npm error"
+about: "When you get a `No matching version found for ...` error from npm"
+title: ''
+labels: 'i: npm cache'
+assignees: ''
+
+---
+
+<!------------^ Click "Preview" for a nicer view!  -->
+
+First of all, check if the package for which `npm` throws an error is actually published by searching [on the npm website](https://www.npmjs.com/).
+
+If it is, then there is nothing that we can do about it: it was correctly published, but for some reason your package manager client doesn't find it.
+
+If you are using a proxy for the npm registry (maybe it's used by your company, or you are using it because your country blocks the main npm registry), then it's likely that it has cached the old version of the package and it isn't loading the new one. If you can, try clearing the proxy's cache. Otherwise, you will have to wait until the cache is automatically updated (it might take a few hours, or even days).
+
+If you are not using a proxy, or if it isn't a caching problem, please report the issue to npm (https://github.com/npm/cli/issues/new/choose) instead of in this repo!

CHANGELOG.md

@@ -19,6 +19,120 @@ See [`eslint-plugin-babel`'s releases](https://github.com/babel/eslint-plugin-ba
 
 <!-- DO NOT CHANGE THESE COMMENTS - See .github/actions/trigger-github-release/update-changelog.js -->
 <!-- insert-new-changelog-here -->
+## v7.9.3 (2020-03-22)
+
+#### :bug: Bug Fix
+* `babel-plugin-transform-parameters`
+  * [#11307](https://github.com/babel/babel/pull/11307) Define default value for vars shadowing params ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-generator`
+  * [#11306](https://github.com/babel/babel/pull/11306) Fix logic to insert parens in return statements with comments ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`
+  * [#11284](https://github.com/babel/babel/pull/11284) fix: async arrow functions should not be allowed after binary operator. ([@vedantroy](https://github.com/vedantroy))
+
+#### :house: Internal
+* [#11293](https://github.com/babel/babel/pull/11293) chore: fix build-babel exclude in gulpfile ([@JLHwung](https://github.com/JLHwung))
+## v7.9.2 (2020-03-21)
+
+#### :bug: Bug Fix
+* `babel-helpers`, `babel-plugin-transform-classes`
+  * [#11298](https://github.com/babel/babel/pull/11298) Manually inline the createSuper helper on older Babel versions ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-helpers`
+  * [#11302](https://github.com/babel/babel/pull/11302) Don't use ES6 in the for-of helper ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`, `babel-plugin-transform-typescript`
+  * [#11296](https://github.com/babel/babel/pull/11296) fix: parse value imports named type as values ([@kaicataldo](https://github.com/kaicataldo))
+
+#### :house: Internal
+* `babel-helper-transform-fixture-test-runner`, `babel-plugin-transform-react-jsx-development`, `babel-preset-react`
+  * [#11297](https://github.com/babel/babel/pull/11297) Transform cwd in string literal on win32 ([@JLHwung](https://github.com/JLHwung))
+## v7.9.1 (2020-03-20)
+
+#### :bug: Bug Fix
+* `babel-plugin-transform-react-jsx`, `babel-preset-react`
+  * [#11295](https://github.com/babel/babel/pull/11295) Consider jsxFrag as set when it's set to the default value ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+## v7.9.0 (2020-03-20)
+
+#### :rocket: New Feature
+* `babel-generator`, `babel-helper-builder-react-jsx-experimental`, `babel-helper-builder-react-jsx`, `babel-plugin-transform-block-scoping`, `babel-plugin-transform-classes`, `babel-plugin-transform-function-name`, `babel-plugin-transform-react-constant-elements`, `babel-plugin-transform-react-inline-elements`, `babel-plugin-transform-react-jsx-development`, `babel-plugin-transform-react-jsx`, `babel-plugin-transform-regenerator`, `babel-preset-react`, `babel-preset-typescript`, `babel-standalone`
+  * [#11126](https://github.com/babel/babel/pull/11126) Mark transpiled JSX elements as pure ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-helper-builder-react-jsx-experimental`, `babel-helper-builder-react-jsx`, `babel-plugin-transform-react-jsx-development`, `babel-plugin-transform-react-jsx-self`, `babel-plugin-transform-react-jsx`, `babel-preset-react`, `babel-standalone`
+  * [#11154](https://github.com/babel/babel/pull/11154) Add experimental version of the `babel-plugin-transform-react-jsx` transform ([@lunaruan](https://github.com/lunaruan))
+* `babel-compat-data`, `babel-preset-env`
+  * [#11083](https://github.com/babel/babel/pull/11083) Include preset modules ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#10971](https://github.com/babel/babel/pull/10971) Add numeric separator to `shippedProposals` ([@Wetinee](https://github.com/Wetinee))
+* `babel-core`, `babel-helpers`, `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`, `babel-plugin-transform-classes`, `babel-plugin-transform-function-name`, `babel-plugin-transform-parameters`, `babel-plugin-transform-react-jsx`, `babel-plugin-transform-runtime`, `babel-plugin-transform-typescript`, `babel-preset-env`
+  * [#8656](https://github.com/babel/babel/pull/8656)  Allow extending untranspiled classes ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-core`, `babel-helper-module-transforms`, `babel-plugin-transform-modules-amd`, `babel-plugin-transform-modules-commonjs`, `babel-plugin-transform-modules-systemjs`, `babel-plugin-transform-modules-umd`
+  * [#11194](https://github.com/babel/babel/pull/11194) Allow defining the moduleIds-related option in the transform plugins ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-core`, `babel-generator`, `babel-parser`, `babel-plugin-syntax-record-and-tuple`, `babel-types`
+  * [#10865](https://github.com/babel/babel/pull/10865) Added support for record and tuple syntax. ([@rickbutton](https://github.com/rickbutton))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-flow-strip-types`, `babel-preset-flow`
+  * [#11178](https://github.com/babel/babel/pull/11178) Implement support for `declare` on class fields with Flow ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-types`
+  * [#10680](https://github.com/babel/babel/pull/10680) Add cloneDeepWithoutLoc ([@Taym95](https://github.com/Taym95))
+* `babel-generator`
+  * [#11028](https://github.com/babel/babel/pull/11028) Added jsescOptions to Numeric Literals ([@sidntrivedi012](https://github.com/sidntrivedi012))
+* `babel-generator`, `babel-parser`, `babel-types`
+  * [#11077](https://github.com/babel/babel/pull/11077) Add support for flow's SymbolTypeAnnotation ([@existentialism](https://github.com/existentialism))
+* `babel-parser`
+  * [#11117](https://github.com/babel/babel/pull/11117) Parse BigInts by default ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#11254](https://github.com/babel/babel/pull/11254) Add estree parsing support for `export * as A` ([@existentialism](https://github.com/existentialism))
+  * [#11246](https://github.com/babel/babel/pull/11246) feat: align ID_Start/ID_Continue regex to Unicode 13.0.0 ([@JLHwung](https://github.com/JLHwung))
+* `babel-plugin-transform-react-jsx-source`, `babel-preset-react`
+  * [#11139](https://github.com/babel/babel/pull/11139) feat(react-jsx-source): add columnNumber property ([@motiz88](https://github.com/motiz88))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-typescript`, `babel-preset-typescript`, `babel-types`
+  * [#11171](https://github.com/babel/babel/pull/11171) Add `import type` and `export type` support to TypeScript ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :bug: Bug Fix
+* `babel-helper-builder-react-jsx-experimental`, `babel-helper-builder-react-jsx`, `babel-helper-validator-identifier`, `babel-highlight`, `babel-parser`, `babel-types`
+  * [#11289](https://github.com/babel/babel/pull/11289) Add @babel/helper-validator-identifier ([@JLHwung](https://github.com/JLHwung))
+* `babel-plugin-proposal-optional-chaining`
+  * [#11261](https://github.com/babel/babel/pull/11261) Memoize call expressions in optional chains in loose mode ([@oliverdunk](https://github.com/oliverdunk))
+* `babel-plugin-transform-react-jsx-self`, `babel-preset-react`
+  * [#11290](https://github.com/babel/babel/pull/11290) Pass the correct `this` to JSX's `__self` with the old plugin ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-helper-builder-react-jsx-experimental`, `babel-plugin-transform-react-jsx-development`, `babel-plugin-transform-react-jsx`
+  * [#11288](https://github.com/babel/babel/pull/11288) Use the correct `this` in `__self` for JSX elements in arrows ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-compat-data`, `babel-preset-env`
+  * [#11280](https://github.com/babel/babel/pull/11280) Move `object-rest-spread` after `transform-parameters` ([@JLHwung](https://github.com/JLHwung))
+* `babel-helpers`, `babel-plugin-transform-for-of`, `babel-preset-env`
+  * [#11285](https://github.com/babel/babel/pull/11285) Allow for-of on polyfilled or builtin iterables without `Symbol` support ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#11263](https://github.com/babel/babel/pull/11263) Add for-of fallback for arrays in browsers without symbol support ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-object-rest-spread`
+  * [#11282](https://github.com/babel/babel/pull/11282) fix: object-rest-spread should not transform export array rest ([@JLHwung](https://github.com/JLHwung))
+* `babel-register`
+  * [#11249](https://github.com/babel/babel/pull/11249) Add path separator to `@babel/register` sourceRoot ([@andrewdotn](https://github.com/andrewdotn))
+* `babel-core`, `babel-helpers`, `babel-plugin-transform-runtime`
+  * [#10575](https://github.com/babel/babel/pull/10575) Create File class for babel helpers ([@JLHwung](https://github.com/JLHwung))
+* `babel-helpers`, `babel-plugin-transform-modules-commonjs`, `babel-preset-env`, `babel-runtime-corejs2`, `babel-runtime`
+  * [#11268](https://github.com/babel/babel/pull/11268) Allow rest/spread on polyfilled or builtin iterables without `Symbol` support ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`
+  * [#11148](https://github.com/babel/babel/pull/11148) Allow await when it is not in AsyncArrowHead ([@arku](https://github.com/arku))
+* `babel-helpers`, `babel-plugin-proposal-object-rest-spread`, `babel-runtime-corejs2`, `babel-runtime`
+  * [#9794](https://github.com/babel/babel/pull/9794) fix(rest-spread): Do not require `Symbol.iterator` for strings ([@clshortfuse](https://github.com/clshortfuse))
+* `babel-generator`
+  * [#11255](https://github.com/babel/babel/pull/11255) Fix printing edge cases in  Nullish Coalescing and Optional Chaining ([@jridgewell](https://github.com/jridgewell))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#11208](https://github.com/babel/babel/pull/11208) Rephrase parser error message ([@JLHwung](https://github.com/JLHwung))
+* `babel-helpers`, `babel-plugin-transform-destructuring`, `babel-plugin-transform-modules-commonjs`, `babel-plugin-transform-spread`, `babel-preset-env`, `babel-runtime-corejs2`, `babel-runtime`
+  * [#11264](https://github.com/babel/babel/pull/11264) Throw better errors for non-iterables when Symbol doesn't exist. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :house: Internal
+* `babel-helper-builder-react-jsx-experimental`, `babel-helper-builder-react-jsx`, `babel-helper-validator-identifier`, `babel-highlight`, `babel-parser`, `babel-types`
+  * [#11289](https://github.com/babel/babel/pull/11289) Add @babel/helper-validator-identifier ([@JLHwung](https://github.com/JLHwung))
+* `babel-compat-data`, `babel-preset-env`
+  * [#11277](https://github.com/babel/babel/pull/11277) Update compat-data ([@existentialism](https://github.com/existentialism))
+* `babel-core`
+  * [#11276](https://github.com/babel/babel/pull/11276) chore: bump json5 and minimist ([@JLHwung](https://github.com/JLHwung))
+* `babel-types`
+  * [#11250](https://github.com/babel/babel/pull/11250) Add stricter Optional Chain node validation ([@jridgewell](https://github.com/jridgewell))
+  * [#11267](https://github.com/babel/babel/pull/11267) Update Purish aliases ([@jridgewell](https://github.com/jridgewell))
+* `babel-helpers`, `babel-plugin-transform-block-scoping`, `babel-plugin-transform-for-of`, `babel-plugin-transform-parameters`, `babel-plugin-transform-runtime`, `babel-preset-env`
+  * [#11262](https://github.com/babel/babel/pull/11262) Extract for-of iterator handling to a helper ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-core`, `babel-plugin-proposal-decorators`, `babel-plugin-proposal-logical-assignment-operators`, `babel-plugin-proposal-object-rest-spread`, `babel-plugin-proposal-partial-application`, `babel-plugin-proposal-pipeline-operator`, `babel-plugin-transform-parameters`, `babel-traverse`
+  * [#11260](https://github.com/babel/babel/pull/11260) Support more node types in generateUidBasedOnNode ([@jridgewell](https://github.com/jridgewell))
+* Other
+  * [#11259](https://github.com/babel/babel/pull/11259) Remove unused `gulp-rename` ([@existentialism](https://github.com/existentialism))
 ## v7.8.8 (2020-03-12)
 
 #### :rocket: New Feature

Gulpfile.js

@@ -59,7 +59,7 @@ function buildBabel(exclude, sourcesGlob = defaultSourcesGlob) {
   let stream = gulp.src(sourcesGlob, { base: __dirname });
 
   if (exclude) {
-    const filters = exclude.map(p => `!**/${p}/**`);
+    const filters = exclude.map(p => `!**/${p.src}/**`);
     filters.unshift("**");
     stream = stream.pipe(filter(filters));
   }
@@ -227,9 +227,19 @@ gulp.task("build-rollup", () => buildRollup(libBundles));
 gulp.task("build-babel-standalone", () => buildRollup(standaloneBundle));
 
 gulp.task("build-babel", () => buildBabel(/* exclude */ libBundles));
-gulp.task("build-babel-types", () =>
+gulp.task("build-babel-types-deps", () =>
+  buildBabel(
+    /* exclude */ libBundles,
+    "packages/babel-helper-validator-identifier/src/**/*.js"
+  )
+);
+gulp.task("build-babel-types-self", () =>
   buildBabel(/* exclude */ libBundles, "packages/babel-types/src/**/*.js")
 );
+gulp.task(
+  "build-babel-types",
+  gulp.series("build-babel-types-deps", "build-babel-types-self")
+);
 gulp.task("build", gulp.parallel("build-rollup", "build-babel"));
 
 gulp.task("default", gulp.series("build"));

babel.config.js

@@ -115,7 +115,10 @@ module.exports = function(api) {
     ].filter(Boolean),
     overrides: [
       {
-        test: "packages/babel-parser",
+        test: [
+          "packages/babel-parser",
+          "packages/babel-helper-validator-identifier",
+        ],
         plugins: [
           "babel-plugin-transform-charcodes",
           ["@babel/transform-for-of", { assumeArray: true }],

eslint/babel-eslint-parser/test/index.js

@@ -9,28 +9,38 @@ const BABEL_OPTIONS = {
     "@babel/eslint-shared-fixtures/config/babel.config.js",
   ),
 };
-const ALLOWED_PROPERTIES = [
+const PROPS_TO_REMOVE = [
   "importKind",
   "exportKind",
   "variance",
   "typeArguments",
 ];
+// We can remove needing to drop "exported" if null once this lands:
+// https://github.com/acornjs/acorn/pull/889
+const PROPS_TO_REMOVE_IF_NULL = ["exported"];
 
-function deeplyRemoveProperties(obj, props) {
+function deeplyRemoveProperties(obj, props, propsIfNull) {
   for (const [k, v] of Object.entries(obj)) {
     if (typeof v === "object") {
       if (Array.isArray(v)) {
         for (const el of v) {
-          if (el != null) deeplyRemoveProperties(el, props);
+          if (el != null) {
+            deeplyRemoveProperties(el, props, propsIfNull);
+          }
         }
       }
 
-      if (props.includes(k)) delete obj[k];
-      else if (v != null) deeplyRemoveProperties(v, props);
+      if (props.includes(k) || (propsIfNull.includes(k) && v === null)) {
+        delete obj[k];
+      } else if (v != null) {
+        deeplyRemoveProperties(v, props, propsIfNull);
+      }
       continue;
     }
 
-    if (props.includes(k)) delete obj[k];
+    if (props.includes(k) || (propsIfNull.includes(k) && v === null)) {
+      delete obj[k];
+    }
   }
 }
 
@@ -62,7 +72,7 @@ describe("Babel and Espree", () => {
       eslintScopeManager: true,
       babelOptions: BABEL_OPTIONS,
     }).ast;
-    deeplyRemoveProperties(babelAST, ALLOWED_PROPERTIES);
+    deeplyRemoveProperties(babelAST, PROPS_TO_REMOVE, PROPS_TO_REMOVE_IF_NULL);
     expect(babelAST).toEqual(espreeAST);
   }
 
@@ -266,6 +276,17 @@ describe("Babel and Espree", () => {
     parseAndAssertSame('export * from "foo";');
   });
 
+  // Espree doesn't support `export * as ns` yet
+  it("export * as ns", () => {
+    const code = 'export * as Foo from "foo";';
+    const babylonAST = parseForESLint(code, {
+      eslintVisitorKeys: true,
+      eslintScopeManager: true,
+      babelOptions: BABEL_OPTIONS,
+    }).ast;
+    expect(babylonAST.tokens[1].type).toEqual("Punctuator");
+  });
+
   it("export named", () => {
     parseAndAssertSame("var foo = 1;export { foo };");
   });

lerna.json

@@ -1,5 +1,5 @@
 {
-  "version": "7.8.8",
+  "version": "7.9.3",
   "changelog": {
     "repo": "babel/babel",
     "cacheDir": ".changelog",

lib/preset-modules.js.flow

@@ -0,0 +1,18 @@
+declare module "@babel/preset-modules/lib/plugins/transform-async-arrows-in-class" {
+  declare module.exports: Function;
+}
+declare module "@babel/preset-modules/lib/plugins/transform-edge-default-parameters" {
+  declare module.exports: Function;
+}
+declare module "@babel/preset-modules/lib/plugins/transform-edge-function-name" {
+  declare module.exports: Function;
+}
+declare module "@babel/preset-modules/lib/plugins/transform-tagged-template-caching" {
+  declare module.exports: Function;
+}
+declare module "@babel/preset-modules/lib/plugins/transform-safari-block-shadowing" {
+  declare module.exports: Function;
+}
+declare module "@babel/preset-modules/lib/plugins/transform-safari-for-shadowing" {
+  declare module.exports: Function;
+}

package.json

@@ -52,7 +52,6 @@
     "gulp-filter": "^5.1.0",
     "gulp-newer": "^1.0.0",
     "gulp-plumber": "^1.2.1",
-    "gulp-rename": "^1.4.0",
     "husky": "^3.0.0",
     "jest": "^25.1.0",
     "lerna": "^3.19.0",

packages/babel-compat-data/data/corejs2-built-ins.json

@@ -80,7 +80,7 @@
     "ios": "12",
     "samsung": "10",
     "opera": "56",
-    "electron": "4"
+    "electron": "4.2"
   },
   "es6.array.for-each": {
     "chrome": "5",

packages/babel-compat-data/data/overlapping-plugins.json

@@ -1,3 +1,18 @@
 {
-  "transform-regenerator": []
-}
+  "transform-async-to-generator": [
+    "bugfix/transform-async-arrows-in-class"
+  ],
+  "transform-parameters": [
+    "bugfix/transform-edge-default-parameters"
+  ],
+  "transform-function-name": [
+    "bugfix/transform-edge-function-name"
+  ],
+  "transform-block-scoping": [
+    "bugfix/transform-safari-block-shadowing",
+    "bugfix/transform-safari-for-shadowing"
+  ],
+  "transform-template-literals": [
+    "bugfix/transform-tagged-template-caching"
+  ]
+}