Add to preset-env ES3 transforms for ES3 targets (#9781)

* add to preset-env ES3 transforms for ES3 targets

* add `transform-reserved-words`

* fix `transform-reserved-words` plugin in `@babel/standalone`

packages/babel-core/test/fixtures/transformation/misc/regression-2892/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
 
@@ -54,7 +54,7 @@ function () {
   return Foo;
 }();
 
-exports.default = Foo;
+exports["default"] = Foo;
 
 function foo() {
   return _foo.apply(this, arguments);

packages/babel-plugin-transform-classes/test/fixtures/regression/2663/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 var _net = babelHelpers.interopRequireDefault(require("net"));
 
@@ -31,7 +31,7 @@ function (_EventEmitter) {
   babelHelpers.createClass(Connection, [{
     key: "send",
     value: function send(message) {
-      this.sock.write(_binarySerializer.default.serializeMessage(message));
+      this.sock.write(_binarySerializer["default"].serializeMessage(message));
     }
   }, {
     key: "disconnect",
@@ -42,4 +42,4 @@ function (_EventEmitter) {
   return Connection;
 }(_events.EventEmitter);
 
-exports.default = Connection;
+exports["default"] = Connection;

packages/babel-plugin-transform-classes/test/fixtures/regression/2694/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 var _BaseFoo2 = babelHelpers.interopRequireDefault(require("./BaseFoo"));
 
@@ -25,6 +25,6 @@ function (_BaseFoo) {
     }
   }]);
   return SubFoo;
-}(_BaseFoo2.default);
+}(_BaseFoo2["default"]);
 
-exports.default = SubFoo;
+exports["default"] = SubFoo;

packages/babel-plugin-transform-classes/test/fixtures/regression/2775/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 var _react = babelHelpers.interopRequireDefault(require("react"));
 
@@ -20,12 +20,12 @@ function (_Component) {
   babelHelpers.createClass(RandomComponent, [{
     key: "render",
     value: function render() {
-      return _react.default.createElement("div", {
+      return _react["default"].createElement("div", {
         className: "sui-RandomComponent"
-      }, _react.default.createElement("h2", null, "Hi there!"));
+      }, _react["default"].createElement("h2", null, "Hi there!"));
     }
   }]);
   return RandomComponent;
 }(_react.Component);
 
-exports.default = RandomComponent;
+exports["default"] = RandomComponent;

packages/babel-plugin-transform-classes/test/fixtures/regression/2941/output.js

@@ -3,10 +3,10 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 var _default = function _default() {
   babelHelpers.classCallCheck(this, _default);
 };
 
-exports.default = _default;
+exports["default"] = _default;

packages/babel-plugin-transform-classes/test/fixtures/regression/3028/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 var b = function b() {
   babelHelpers.classCallCheck(this, b);
@@ -51,4 +51,4 @@ function (_b2) {
   return a2;
 }(b);
 
-exports.default = a2;
+exports["default"] = a2;

packages/babel-plugin-transform-classes/test/fixtures/regression/T6750/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = _default;
+exports["default"] = _default;
 
 function _default() {
   return (

packages/babel-plugin-transform-function-name/test/fixtures/function-name/export-default-arrow-renaming-2/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 var _default = function _default() {
   return {
@@ -13,4 +13,4 @@ var _default = function _default() {
   };
 };
 
-exports.default = _default;
+exports["default"] = _default;

packages/babel-plugin-transform-function-name/test/fixtures/function-name/export-default-arrow-renaming-3/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 var _default = function _default(_ref) {
   var _onClick = _ref.onClick;
@@ -14,4 +14,4 @@ var _default = function _default(_ref) {
   });
 };
 
-exports.default = _default;
+exports["default"] = _default;

packages/babel-plugin-transform-parameters/test/fixtures/regression/6057-expanded/output.js

@@ -3,11 +3,11 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = void 0;
+exports["default"] = void 0;
 
 var _args = _interopRequireDefault(require("utils/url/args"));
 
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
 
 function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
 
@@ -55,11 +55,11 @@ function (_Component) {
   _createClass(App, [{
     key: "componentDidMount",
     value: function componentDidMount() {
-      this.exportType = _args.default.get('type', window.location.href);
+      this.exportType = _args["default"].get('type', window.location.href);
     }
   }]);
 
   return App;
 }(Component);
 
-exports.default = App;
+exports["default"] = App;

packages/babel-plugin-transform-regenerator/test/fixtures/regression/6733/output.js

@@ -3,7 +3,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.default = _callee;
+exports["default"] = _callee;
 
 var _marked =
 /*#__PURE__*/

packages/babel-plugin-transform-runtime/package.json

@@ -24,8 +24,6 @@
     "@babel/core": "^7.4.0",
     "@babel/helper-plugin-test-runner": "^7.0.0",
     "@babel/helpers": "^7.4.0",
-    "@babel/plugin-transform-member-expression-literals": "^7.2.0",
-    "@babel/plugin-transform-property-literals": "^7.2.0",
     "@babel/plugin-transform-runtime": "^7.4.0",
     "@babel/preset-env": "^7.4.0",
     "@babel/runtime": "^7.4.0",

packages/babel-plugin-transform-runtime/scripts/build-dist.js

@@ -8,8 +8,6 @@ const template = require("@babel/template");
 const t = require("@babel/types");
 
 const transformRuntime = require("../");
-const transformMemberExpressionLiterals = require("@babel/plugin-transform-member-expression-literals");
-const transformPropertyLiterals = require("@babel/plugin-transform-property-literals");
 
 const corejs2Definitions = require("../lib/runtime-corejs2-definitions").default();
 const corejs3Definitions = require("../lib/runtime-corejs3-definitions").default();
@@ -156,8 +154,6 @@ function buildHelper(
     presets: [[require("@babel/preset-env"), { modules: false }]],
     plugins: [
       [transformRuntime, { corejs, useESModules: esm }],
-      [transformMemberExpressionLiterals],
-      [transformPropertyLiterals],
       buildRuntimeRewritePlugin(
         runtimeName,
         path.relative(path.dirname(helperFilename), pkgDirname),

packages/babel-preset-env/data/plugin-features.js

@@ -99,6 +99,9 @@ const es = {
   "proposal-json-strings": "JSON superset",
   "proposal-optional-catch-binding": "optional catch binding",
   "transform-named-capturing-groups-regex": "RegExp named capture groups",
+  "transform-member-expression-literals": "Object/array literal extensions / Reserved words as property names",
+  "transform-property-literals": "Object/array literal extensions / Reserved words as property names",
+  "transform-reserved-words": "Miscellaneous / Unreserved words",
 };
 
 const proposals = require("./shipped-proposals").features;

packages/babel-preset-env/data/plugins.json

@@ -301,5 +301,47 @@
     "ios": "11.3",
     "opera": "51",
     "electron": "3.1"
+  },
+  "transform-member-expression-literals": {
+    "chrome": "7",
+    "opera": "12",
+    "edge": "12",
+    "firefox": "2",
+    "safari": "5.1",
+    "node": "0.10",
+    "ie": "9",
+    "android": "4",
+    "ios": "6",
+    "phantom": "2",
+    "samsung": "2.1",
+    "electron": "5"
+  },
+  "transform-property-literals": {
+    "chrome": "7",
+    "opera": "12",
+    "edge": "12",
+    "firefox": "2",
+    "safari": "5.1",
+    "node": "0.10",
+    "ie": "9",
+    "android": "4",
+    "ios": "6",
+    "phantom": "2",
+    "samsung": "2.1",
+    "electron": "5"
+  },
+  "transform-reserved-words": {
+    "chrome": "13",
+    "opera": "10.50",
+    "edge": "12",
+    "firefox": "2",
+    "safari": "3.1",
+    "node": "0.10",
+    "ie": "9",
+    "android": "4.4",
+    "ios": "6",
+    "phantom": "2",
+    "samsung": "2.1",
+    "electron": "0.2"
   }
 }

packages/babel-preset-env/package.json

@@ -38,6 +38,7 @@
     "@babel/plugin-transform-for-of": "^7.4.0",
     "@babel/plugin-transform-function-name": "^7.2.0",
     "@babel/plugin-transform-literals": "^7.2.0",
+    "@babel/plugin-transform-member-expression-literals": "^7.2.0",
     "@babel/plugin-transform-modules-amd": "^7.2.0",
     "@babel/plugin-transform-modules-commonjs": "^7.4.0",
     "@babel/plugin-transform-modules-systemjs": "^7.4.0",
@@ -46,7 +47,9 @@
     "@babel/plugin-transform-new-target": "^7.4.0",
     "@babel/plugin-transform-object-super": "^7.2.0",
     "@babel/plugin-transform-parameters": "^7.4.0",
+    "@babel/plugin-transform-property-literals": "^7.2.0",
     "@babel/plugin-transform-regenerator": "^7.4.0",
+    "@babel/plugin-transform-reserved-words": "^7.2.0",
     "@babel/plugin-transform-shorthand-properties": "^7.2.0",
     "@babel/plugin-transform-spread": "^7.2.0",
     "@babel/plugin-transform-sticky-regex": "^7.2.0",

packages/babel-preset-env/src/available-plugins.js

@@ -19,6 +19,7 @@ export default {
   "transform-for-of": require("@babel/plugin-transform-for-of"),
   "transform-function-name": require("@babel/plugin-transform-function-name"),
   "transform-literals": require("@babel/plugin-transform-literals"),
+  "transform-member-expression-literals": require("@babel/plugin-transform-member-expression-literals"),
   "transform-modules-amd": require("@babel/plugin-transform-modules-amd"),
   "transform-modules-commonjs": require("@babel/plugin-transform-modules-commonjs"),
   "transform-modules-systemjs": require("@babel/plugin-transform-modules-systemjs"),
@@ -26,6 +27,8 @@ export default {
   "transform-named-capturing-groups-regex": require("@babel/plugin-transform-named-capturing-groups-regex"),
   "transform-object-super": require("@babel/plugin-transform-object-super"),
   "transform-parameters": require("@babel/plugin-transform-parameters"),
+  "transform-property-literals": require("@babel/plugin-transform-property-literals"),
+  "transform-reserved-words": require("@babel/plugin-transform-reserved-words"),
   "transform-shorthand-properties": require("@babel/plugin-transform-shorthand-properties"),
   "transform-spread": require("@babel/plugin-transform-spread"),
   "transform-sticky-regex": require("@babel/plugin-transform-sticky-regex"),

packages/babel-preset-env/test/debug-fixtures/corejs-without-usebuiltins/stdout.txt

@@ -37,6 +37,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills: No polyfills were added, since the `useBuiltIns` option was not set.
 Successfully compiled 1 file with Babel.

packages/babel-preset-env/test/debug-fixtures/entry-corejs2-android/stdout.txt

@@ -37,6 +37,7 @@ Using plugins:
   proposal-json-strings { "android":"4" }
   proposal-optional-catch-binding { "android":"4" }
   transform-named-capturing-groups-regex { "android":"4" }
+  transform-reserved-words { "android":"4" }
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs2-electron/stdout.txt

@@ -32,6 +32,8 @@ Using plugins:
   proposal-json-strings { "electron":"0.36" }
   proposal-optional-catch-binding { "electron":"0.36" }
   transform-named-capturing-groups-regex { "electron":"0.36" }
+  transform-member-expression-literals { "electron":"0.36" }
+  transform-property-literals { "electron":"0.36" }
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs2-force-all-transforms/stdout.txt

@@ -37,6 +37,9 @@ Using plugins:
   proposal-json-strings { "chrome":"55" }
   proposal-optional-catch-binding { "chrome":"55" }
   transform-named-capturing-groups-regex { "chrome":"55" }
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs2-proposals/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs2-shippedProposals/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs2-versions-decimals/stdout.txt

@@ -48,6 +48,8 @@ Using plugins:
   proposal-json-strings { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   proposal-optional-catch-binding { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   transform-named-capturing-groups-regex { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
+  transform-member-expression-literals { "electron":"0.36" }
+  transform-property-literals { "electron":"0.36" }
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-all/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-android/stdout.txt

@@ -37,6 +37,7 @@ Using plugins:
   proposal-json-strings { "android":"4" }
   proposal-optional-catch-binding { "android":"4" }
   transform-named-capturing-groups-regex { "android":"4" }
+  transform-reserved-words { "android":"4" }
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-babel-polyfill/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-electron/stdout.txt

@@ -32,6 +32,8 @@ Using plugins:
   proposal-json-strings { "electron":"0.36" }
   proposal-optional-catch-binding { "electron":"0.36" }
   transform-named-capturing-groups-regex { "electron":"0.36" }
+  transform-member-expression-literals { "electron":"0.36" }
+  transform-property-literals { "electron":"0.36" }
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-es-proposals/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-es/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-force-all-transforms/stdout.txt

@@ -37,6 +37,9 @@ Using plugins:
   proposal-json-strings { "chrome":"55" }
   proposal-optional-catch-binding { "chrome":"55" }
   transform-named-capturing-groups-regex { "chrome":"55" }
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-proposals/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-specific-entries/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-stable/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-stage/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-versions-decimals/stdout.txt

@@ -48,6 +48,8 @@ Using plugins:
   proposal-json-strings { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   proposal-optional-catch-binding { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   transform-named-capturing-groups-regex { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
+  transform-member-expression-literals { "electron":"0.36" }
+  transform-property-literals { "electron":"0.36" }
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-corejs3-web/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-no-corejs-shippedProposals/stdout.txt

@@ -42,6 +42,9 @@ Using plugins:
   proposal-json-strings {}
   proposal-optional-catch-binding {}
   transform-named-capturing-groups-regex {}
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/entry-no-corejs-uglify/stdout.txt

@@ -48,6 +48,9 @@ Using plugins:
   proposal-json-strings { "chrome":"55" }
   proposal-optional-catch-binding { "chrome":"55" }
   transform-named-capturing-groups-regex { "chrome":"55" }
+  transform-member-expression-literals {}
+  transform-property-literals {}
+  transform-reserved-words {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/fixtures/corejs2/entry-shippedProposals/output.js

@@ -308,15 +308,15 @@ function _awaitAsyncGenerator(value) { return new _AwaitValue(value); }
 
 function _wrapAsyncGenerator(fn) { return function () { return new _AsyncGenerator(fn.apply(this, arguments)); }; }
 
-function _AsyncGenerator(gen) { var front, back; function send(key, arg) { return new Promise(function (resolve, reject) { var request = { key: key, arg: arg, resolve: resolve, reject: reject, next: null }; if (back) { back = back.next = request; } else { front = back = request; resume(key, arg); } }); } function resume(key, arg) { try { var result = gen[key](arg); var value = result.value; var wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume("next", arg); return; } settle(result.done ? "return" : "normal", arg); }, function (err) { resume("throw", err); }); } catch (err) { settle("throw", err); } } function settle(type, value) { switch (type) { case "return": front.resolve({ value: value, done: true }); break; case "throw": front.reject(value); break; default: front.resolve({ value: value, done: false }); break; } front = front.next; if (front) { resume(front.key, front.arg); } else { back = null; } } this._invoke = send; if (typeof gen.return !== "function") { this.return = undefined; } }
+function _AsyncGenerator(gen) { var front, back; function send(key, arg) { return new Promise(function (resolve, reject) { var request = { key: key, arg: arg, resolve: resolve, reject: reject, next: null }; if (back) { back = back.next = request; } else { front = back = request; resume(key, arg); } }); } function resume(key, arg) { try { var result = gen[key](arg); var value = result.value; var wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume("next", arg); return; } settle(result.done ? "return" : "normal", arg); }, function (err) { resume("throw", err); }); } catch (err) { settle("throw", err); } } function settle(type, value) { switch (type) { case "return": front.resolve({ value: value, done: true }); break; case "throw": front.reject(value); break; default: front.resolve({ value: value, done: false }); break; } front = front.next; if (front) { resume(front.key, front.arg); } else { back = null; } } this._invoke = send; if (typeof gen["return"] !== "function") { this["return"] = undefined; } }
 
 if (typeof Symbol === "function" && Symbol.asyncIterator) { _AsyncGenerator.prototype[Symbol.asyncIterator] = function () { return this; }; }
 
 _AsyncGenerator.prototype.next = function (arg) { return this._invoke("next", arg); };
 
-_AsyncGenerator.prototype.throw = function (arg) { return this._invoke("throw", arg); };
+_AsyncGenerator.prototype["throw"] = function (arg) { return this._invoke("throw", arg); };
 
-_AsyncGenerator.prototype.return = function (arg) { return this._invoke("return", arg); };
+_AsyncGenerator.prototype["return"] = function (arg) { return this._invoke("return", arg); };
 
 function _AwaitValue(value) { this.wrapped = value; }
 

packages/babel-preset-env/test/fixtures/corejs2/usage-shippedProposals/output.js

@@ -36,15 +36,15 @@ function _awaitAsyncGenerator(value) { return new _AwaitValue(value); }
 
 function _wrapAsyncGenerator(fn) { return function () { return new _AsyncGenerator(fn.apply(this, arguments)); }; }
 
-function _AsyncGenerator(gen) { var front, back; function send(key, arg) { return new Promise(function (resolve, reject) { var request = { key: key, arg: arg, resolve: resolve, reject: reject, next: null }; if (back) { back = back.next = request; } else { front = back = request; resume(key, arg); } }); } function resume(key, arg) { try { var result = gen[key](arg); var value = result.value; var wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume("next", arg); return; } settle(result.done ? "return" : "normal", arg); }, function (err) { resume("throw", err); }); } catch (err) { settle("throw", err); } } function settle(type, value) { switch (type) { case "return": front.resolve({ value: value, done: true }); break; case "throw": front.reject(value); break; default: front.resolve({ value: value, done: false }); break; } front = front.next; if (front) { resume(front.key, front.arg); } else { back = null; } } this._invoke = send; if (typeof gen.return !== "function") { this.return = undefined; } }
+function _AsyncGenerator(gen) { var front, back; function send(key, arg) { return new Promise(function (resolve, reject) { var request = { key: key, arg: arg, resolve: resolve, reject: reject, next: null }; if (back) { back = back.next = request; } else { front = back = request; resume(key, arg); } }); } function resume(key, arg) { try { var result = gen[key](arg); var value = result.value; var wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume("next", arg); return; } settle(result.done ? "return" : "normal", arg); }, function (err) { resume("throw", err); }); } catch (err) { settle("throw", err); } } function settle(type, value) { switch (type) { case "return": front.resolve({ value: value, done: true }); break; case "throw": front.reject(value); break; default: front.resolve({ value: value, done: false }); break; } front = front.next; if (front) { resume(front.key, front.arg); } else { back = null; } } this._invoke = send; if (typeof gen["return"] !== "function") { this["return"] = undefined; } }
 
 if (typeof Symbol === "function" && Symbol.asyncIterator) { _AsyncGenerator.prototype[Symbol.asyncIterator] = function () { return this; }; }
 
 _AsyncGenerator.prototype.next = function (arg) { return this._invoke("next", arg); };
 
-_AsyncGenerator.prototype.throw = function (arg) { return this._invoke("throw", arg); };
+_AsyncGenerator.prototype["throw"] = function (arg) { return this._invoke("throw", arg); };
 
-_AsyncGenerator.prototype.return = function (arg) { return this._invoke("return", arg); };
+_AsyncGenerator.prototype["return"] = function (arg) { return this._invoke("return", arg); };
 
 function _AwaitValue(value) { this.wrapped = value; }
 

packages/babel-preset-env/test/fixtures/modules/auto-cjs/output.js

@@ -2,6 +2,6 @@
 
 var _mod = _interopRequireDefault(require("mod"));
 
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
 
-console.log(_mod.default);
+console.log(_mod["default"]);

packages/babel-preset-env/test/fixtures/modules/auto-unknown/output.js

@@ -2,6 +2,6 @@
 
 var _mod = _interopRequireDefault(require("mod"));
 
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
 
-console.log(_mod.default);
+console.log(_mod["default"]);

packages/babel-preset-env/test/fixtures/modules/modules-cjs/output.js

@@ -2,4 +2,4 @@
 
 var _a = _interopRequireDefault(require("a"));
 
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

packages/babel-preset-env/test/fixtures/modules/modules-commonjs/output.js

@@ -2,4 +2,4 @@
 
 var _a = _interopRequireDefault(require("a"));
 
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

packages/babel-preset-env/test/fixtures/modules/modules-umd/output.js

@@ -15,5 +15,5 @@
 
   _a = _interopRequireDefault(_a);
 
-  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
 });

packages/babel-preset-env/test/fixtures/preset-options/reserved-keys-ie8/input.mjs

@@ -0,0 +1 @@
+({ if: 42 }).if == 42;

packages/babel-preset-env/test/fixtures/preset-options/reserved-keys-ie8/options.json

@@ -0,0 +1,13 @@
+{
+  "presets": [
+    [
+      "../../../../lib",
+      {
+        "targets": {
+          "browsers": ["ie 8"]
+        },
+        "modules": false
+      }
+    ]
+  ]
+}

packages/babel-preset-env/test/fixtures/preset-options/reserved-keys-ie8/output.mjs

@@ -0,0 +1,3 @@
+({
+  "if": 42
+})["if"] == 42;

packages/babel-preset-env/test/fixtures/preset-options/reserved-keys-ie9/input.mjs

@@ -0,0 +1 @@
+({ if: 42 }).if == 42;

packages/babel-preset-env/test/fixtures/preset-options/reserved-keys-ie9/options.json

@@ -0,0 +1,13 @@
+{
+  "presets": [
+    [
+      "../../../../lib",
+      {
+        "targets": {
+          "browsers": ["ie 9"]
+        },
+        "modules": false
+      }
+    ]
+  ]
+}

packages/babel-preset-env/test/fixtures/preset-options/reserved-keys-ie9/output.mjs

@@ -0,0 +1,3 @@
+({
+  if: 42
+}).if == 42;

packages/babel-preset-env/test/fixtures/preset-options/reserved-names-ie8/input.mjs

@@ -0,0 +1 @@
+var abstract = 1;

packages/babel-preset-env/test/fixtures/preset-options/reserved-names-ie8/options.json

@@ -0,0 +1,13 @@
+{
+  "presets": [
+    [
+      "../../../../lib",
+      {
+        "targets": {
+          "browsers": ["ie 8"]
+        },
+        "modules": false
+      }
+    ]
+  ]
+}

packages/babel-preset-env/test/fixtures/preset-options/reserved-names-ie8/output.mjs

@@ -0,0 +1 @@
+var _abstract = 1;

packages/babel-preset-env/test/fixtures/preset-options/reserved-names-ie9/input.mjs

@@ -0,0 +1 @@
+var abstract = 1;

packages/babel-preset-env/test/fixtures/preset-options/reserved-names-ie9/options.json

@@ -0,0 +1,13 @@
+{
+  "presets": [
+    [
+      "../../../../lib",
+      {
+        "targets": {
+          "browsers": ["ie 9"]
+        },
+        "modules": false
+      }
+    ]
+  ]
+}

packages/babel-preset-env/test/fixtures/preset-options/reserved-names-ie9/output.mjs

@@ -0,0 +1 @@
+var abstract = 1;

packages/babel-preset-env/test/fixtures/preset-options/shippedProposals/output.js

@@ -10,15 +10,15 @@ function _awaitAsyncGenerator(value) { return new _AwaitValue(value); }
 
 function _wrapAsyncGenerator(fn) { return function () { return new _AsyncGenerator(fn.apply(this, arguments)); }; }
 
-function _AsyncGenerator(gen) { var front, back; function send(key, arg) { return new Promise(function (resolve, reject) { var request = { key: key, arg: arg, resolve: resolve, reject: reject, next: null }; if (back) { back = back.next = request; } else { front = back = request; resume(key, arg); } }); } function resume(key, arg) { try { var result = gen[key](arg); var value = result.value; var wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume("next", arg); return; } settle(result.done ? "return" : "normal", arg); }, function (err) { resume("throw", err); }); } catch (err) { settle("throw", err); } } function settle(type, value) { switch (type) { case "return": front.resolve({ value: value, done: true }); break; case "throw": front.reject(value); break; default: front.resolve({ value: value, done: false }); break; } front = front.next; if (front) { resume(front.key, front.arg); } else { back = null; } } this._invoke = send; if (typeof gen.return !== "function") { this.return = undefined; } }
+function _AsyncGenerator(gen) { var front, back; function send(key, arg) { return new Promise(function (resolve, reject) { var request = { key: key, arg: arg, resolve: resolve, reject: reject, next: null }; if (back) { back = back.next = request; } else { front = back = request; resume(key, arg); } }); } function resume(key, arg) { try { var result = gen[key](arg); var value = result.value; var wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume("next", arg); return; } settle(result.done ? "return" : "normal", arg); }, function (err) { resume("throw", err); }); } catch (err) { settle("throw", err); } } function settle(type, value) { switch (type) { case "return": front.resolve({ value: value, done: true }); break; case "throw": front.reject(value); break; default: front.resolve({ value: value, done: false }); break; } front = front.next; if (front) { resume(front.key, front.arg); } else { back = null; } } this._invoke = send; if (typeof gen["return"] !== "function") { this["return"] = undefined; } }
 
 if (typeof Symbol === "function" && Symbol.asyncIterator) { _AsyncGenerator.prototype[Symbol.asyncIterator] = function () { return this; }; }
 
 _AsyncGenerator.prototype.next = function (arg) { return this._invoke("next", arg); };
 
-_AsyncGenerator.prototype.throw = function (arg) { return this._invoke("throw", arg); };
+_AsyncGenerator.prototype["throw"] = function (arg) { return this._invoke("throw", arg); };
 
-_AsyncGenerator.prototype.return = function (arg) { return this._invoke("return", arg); };
+_AsyncGenerator.prototype["return"] = function (arg) { return this._invoke("return", arg); };
 
 function _AwaitValue(value) { this.wrapped = value; }
 

packages/babel-preset-env/test/fixtures/sanity/block-scoping-for-of/output.js

@@ -31,8 +31,8 @@ try {
   _iteratorError = err;
 } finally {
   try {
-    if (!_iteratorNormalCompletion && _iterator.return != null) {
-      _iterator.return();
+    if (!_iteratorNormalCompletion && _iterator["return"] != null) {
+      _iterator["return"]();
     }
   } finally {
     if (_didIteratorError) {

packages/babel-standalone/package.json

@@ -85,6 +85,7 @@
     "@babel/plugin-transform-react-jsx-self": "^7.2.0",
     "@babel/plugin-transform-react-jsx-source": "^7.2.0",
     "@babel/plugin-transform-regenerator": "^7.4.0",
+    "@babel/plugin-transform-reserved-words": "^7.2.0",
     "@babel/plugin-transform-runtime": "^7.4.0",
     "@babel/plugin-transform-shorthand-properties": "^7.2.0",
     "@babel/plugin-transform-spread": "^7.2.2",

packages/babel-standalone/scripts/pluginConfig.json

@@ -73,6 +73,7 @@
   "transform-react-jsx-self",
   "transform-react-jsx-source",
   "transform-regenerator",
+  "transform-reserved-words",
   "transform-runtime",
   "transform-shorthand-properties",
   "transform-spread",

packages/babel-standalone/src/generated/plugins.js

@@ -77,6 +77,7 @@ import transformReactJsxCompat from "@babel/plugin-transform-react-jsx-compat";
 import transformReactJsxSelf from "@babel/plugin-transform-react-jsx-self";
 import transformReactJsxSource from "@babel/plugin-transform-react-jsx-source";
 import transformRegenerator from "@babel/plugin-transform-regenerator";
+import transformReservedWords from "@babel/plugin-transform-reserved-words";
 import transformRuntime from "@babel/plugin-transform-runtime";
 import transformShorthandProperties from "@babel/plugin-transform-shorthand-properties";
 import transformSpread from "@babel/plugin-transform-spread";
@@ -162,6 +163,7 @@ export {
   transformReactJsxSelf,
   transformReactJsxSource,
   transformRegenerator,
+  transformReservedWords,
   transformRuntime,
   transformShorthandProperties,
   transformSpread,
@@ -248,6 +250,7 @@ export const all = {
   "transform-react-jsx-self": transformReactJsxSelf,
   "transform-react-jsx-source": transformReactJsxSource,
   "transform-regenerator": transformRegenerator,
+  "transform-reserved-words": transformReservedWords,
   "transform-runtime": transformRuntime,
   "transform-shorthand-properties": transformShorthandProperties,
   "transform-spread": transformSpread,