From d80b02a4dd773e3fd59f440df28085dae13d2c2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=B2=20Ribaudo?= <nicolo.ribaudo@gmail.com>
Date: Fri, 31 Aug 2018 16:25:15 +0200
Subject: [PATCH] Undo breaking change

---
 .../util/missing-plugin-helper.js             | 35 +++++++++++++++++++
 .../src/index.js                              |  7 +++-
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/packages/babel-core/src/transformation/util/missing-plugin-helper.js b/packages/babel-core/src/transformation/util/missing-plugin-helper.js
index 679427bde996..0024a77efc6d 100644
--- a/packages/babel-core/src/transformation/util/missing-plugin-helper.js
+++ b/packages/babel-core/src/transformation/util/missing-plugin-helper.js
@@ -173,6 +173,41 @@ const pluginNameMap = {
       url: "https://git.io/vb4Sm",
     },
   },
+
+  // TODO: This plugins are now supported by default by @babel/parser: they can
+  // be removed from this list. Althought emoving them isn't a breaking change,
+  // its better to keep the nice error message for users using old versions of
+  // the parser. They can be removed in Babel 8.
+  asyncGenerators: {
+    syntax: {
+      name: "@babel/plugin-syntax-async-generators",
+      url: "https://git.io/vb4SY",
+    },
+    transform: {
+      name: "@babel/plugin-proposal-async-generator-functions",
+      url: "https://git.io/vb4yp",
+    },
+  },
+  objectRestSpread: {
+    syntax: {
+      name: "@babel/plugin-syntax-object-rest-spread",
+      url: "https://git.io/vb4y5",
+    },
+    transform: {
+      name: "@babel/plugin-proposal-object-rest-spread",
+      url: "https://git.io/vb4Ss",
+    },
+  },
+  optionalCatchBinding: {
+    syntax: {
+      name: "@babel/plugin-syntax-optional-catch-binding",
+      url: "https://git.io/vb4Sn",
+    },
+    transform: {
+      name: "@babel/plugin-proposal-optional-catch-binding",
+      url: "https://git.io/vb4SI",
+    },
+  },
 };
 
 const getNameURLCombination = ({ name, url }) => `${name} (${url})`;
diff --git a/packages/babel-plugin-syntax-typescript/src/index.js b/packages/babel-plugin-syntax-typescript/src/index.js
index 24df037d07eb..3986ca4aafd5 100644
--- a/packages/babel-plugin-syntax-typescript/src/index.js
+++ b/packages/babel-plugin-syntax-typescript/src/index.js
@@ -29,7 +29,12 @@ export default declare((api, { isTSX }) => {
       // in TS depends on the extensions, and is purely dependent on 'isTSX'.
       removePlugin(plugins, "jsx");
 
-      parserOpts.plugins.push("typescript", "classProperties");
+      parserOpts.plugins.push(
+        "typescript",
+        "classProperties",
+        // TODO: This is enabled by default now, remove in Babel 8
+        "objectRestSpread",
+      );
 
       if (isTSX) {
         parserOpts.plugins.push("jsx");