Add initial support for ES2018 in preset-env (#7658)

packages/babel-preset-env/data/built-in-features.js

@@ -12,9 +12,10 @@ const es5 = {
   "es6.array.sort": "Array methods / Array.prototype.sort",
   "es6.date.now": "Date methods / Date.now",
   "es6.date.to-iso-string": "Date methods / Date.prototype.toISOString",
-  "es6.date.to-json" : "Date methods / Date.prototype.toJSON",
+  "es6.date.to-json": "Date methods / Date.prototype.toJSON",
   "es6.function.bind": "Function.prototype.bind",
-  "es6.string.iterator": "String properties and methods / Property access on strings",
+  "es6.string.iterator":
+    "String properties and methods / Property access on strings",
   "es6.string.trim": "String properties and methods / String.prototype.trim",
 };
 
@@ -50,31 +51,31 @@ const es2015 = {
   "es6.typed.array-buffer": "typed arrays / ArrayBuffer[Symbol.species]",
   "es6.typed.data-view": "typed arrays / DataView",
   "es6.typed.int8-array": {
-    features: ["typed arrays / Int8Array"].concat(typedArrayMethods)
+    features: ["typed arrays / Int8Array"].concat(typedArrayMethods),
   },
   "es6.typed.uint8-array": {
-    features: ["typed arrays / Uint8Array"].concat(typedArrayMethods)
+    features: ["typed arrays / Uint8Array"].concat(typedArrayMethods),
   },
   "es6.typed.uint8-clamped-array": {
-    features: ["typed arrays / Uint8ClampedArray"].concat(typedArrayMethods)
+    features: ["typed arrays / Uint8ClampedArray"].concat(typedArrayMethods),
   },
   "es6.typed.int16-array": {
-    features: ["typed arrays / Int16Array"].concat(typedArrayMethods)
+    features: ["typed arrays / Int16Array"].concat(typedArrayMethods),
   },
   "es6.typed.uint16-array": {
-    features: ["typed arrays / Uint16Array"].concat(typedArrayMethods)
+    features: ["typed arrays / Uint16Array"].concat(typedArrayMethods),
   },
   "es6.typed.int32-array": {
-    features: ["typed arrays / Int32Array"].concat(typedArrayMethods)
+    features: ["typed arrays / Int32Array"].concat(typedArrayMethods),
   },
   "es6.typed.uint32-array": {
-    features: ["typed arrays / Uint32Array"].concat(typedArrayMethods)
+    features: ["typed arrays / Uint32Array"].concat(typedArrayMethods),
   },
   "es6.typed.float32-array": {
-    features: ["typed arrays / Float32Array"].concat(typedArrayMethods)
+    features: ["typed arrays / Float32Array"].concat(typedArrayMethods),
   },
   "es6.typed.float64-array": {
-    features: ["typed arrays / Float64Array"].concat(typedArrayMethods)
+    features: ["typed arrays / Float64Array"].concat(typedArrayMethods),
   },
 
   "es6.map": "Map",
@@ -89,7 +90,8 @@ const es2015 = {
   "es6.reflect.define-property": "Reflect / Reflect.defineProperty",
   "es6.reflect.delete-property": "Reflect / Reflect.deleteProperty",
   "es6.reflect.get": "Reflect / Reflect.get",
-  "es6.reflect.get-own-property-descriptor": "Reflect / Reflect.getOwnPropertyDescriptor",
+  "es6.reflect.get-own-property-descriptor":
+    "Reflect / Reflect.getOwnPropertyDescriptor",
   "es6.reflect.get-prototype-of": "Reflect / Reflect.getPrototypeOf",
   "es6.reflect.has": "Reflect / Reflect.has",
   "es6.reflect.is-extensible": "Reflect / Reflect.isExtensible",
@@ -102,13 +104,13 @@ const es2015 = {
     features: [
       "Promise / basic functionality",
       "Promise / constructor requires new",
-      "Promise / Promise.prototype isn\'t an instance",
+      "Promise / Promise.prototype isn't an instance",
       "Promise / Promise.all",
       "Promise / Promise.all, generic iterables",
       "Promise / Promise.race",
       "Promise / Promise.race, generic iterables",
-      "Promise / Promise[Symbol.species]"
-    ]
+      "Promise / Promise[Symbol.species]",
+    ],
   },
 
   "es6.symbol": {
@@ -126,47 +128,63 @@ const es2015 = {
       "well-known symbols / Symbol.toPrimitive",
       "well-known symbols / Symbol.toStringTag",
       "well-known symbols / Symbol.unscopables",
-    ]
+    ],
   },
 
-  "es6.object.freeze": "Object static methods accept primitives / Object.freeze",
+  "es6.object.freeze":
+    "Object static methods accept primitives / Object.freeze",
   "es6.object.seal": "Object static methods accept primitives / Object.seal",
-  "es6.object.prevent-extensions": "Object static methods accept primitives / Object.preventExtensions",
-  "es6.object.is-frozen": "Object static methods accept primitives / Object.isFrozen",
-  "es6.object.is-sealed": "Object static methods accept primitives / Object.isSealed",
-  "es6.object.is-extensible": "Object static methods accept primitives / Object.isExtensible",
+  "es6.object.prevent-extensions":
+    "Object static methods accept primitives / Object.preventExtensions",
+  "es6.object.is-frozen":
+    "Object static methods accept primitives / Object.isFrozen",
+  "es6.object.is-sealed":
+    "Object static methods accept primitives / Object.isSealed",
+  "es6.object.is-extensible":
+    "Object static methods accept primitives / Object.isExtensible",
   "es6.object.get-own-property-descriptor":
     "Object static methods accept primitives / Object.getOwnPropertyDescriptor",
-  "es6.object.get-prototype-of": "Object static methods accept primitives / Object.getPrototypeOf",
+  "es6.object.get-prototype-of":
+    "Object static methods accept primitives / Object.getPrototypeOf",
   "es6.object.keys": "Object static methods accept primitives / Object.keys",
-  "es6.object.get-own-property-names": "Object static methods accept primitives / Object.getOwnPropertyNames",
+  "es6.object.get-own-property-names":
+    "Object static methods accept primitives / Object.getOwnPropertyNames",
 
   "es6.object.assign": "Object static methods / Object.assign",
   "es6.object.is": "Object static methods / Object.is",
-  "es6.object.set-prototype-of": "Object static methods / Object.setPrototypeOf",
+  "es6.object.set-prototype-of":
+    "Object static methods / Object.setPrototypeOf",
 
-  "es6.function.name": "function \"name\" property",
+  "es6.function.name": 'function "name" property',
 
   "es6.string.raw": "String static methods / String.raw",
   "es6.string.from-code-point": "String static methods / String.fromCodePoint",
 
-  "es6.string.code-point-at": "String.prototype methods / String.prototype.codePointAt",
+  "es6.string.code-point-at":
+    "String.prototype methods / String.prototype.codePointAt",
   // "String.prototype methods / String.prototype.normalize" not implemented
   "es6.string.repeat": "String.prototype methods / String.prototype.repeat",
-  "es6.string.starts-with": "String.prototype methods / String.prototype.startsWith",
-  "es6.string.ends-with": "String.prototype methods / String.prototype.endsWith",
+  "es6.string.starts-with":
+    "String.prototype methods / String.prototype.startsWith",
+  "es6.string.ends-with":
+    "String.prototype methods / String.prototype.endsWith",
   "es6.string.includes": "String.prototype methods / String.prototype.includes",
 
   "es6.regexp.flags": "RegExp.prototype properties / RegExp.prototype.flags",
-  "es6.regexp.match": "RegExp.prototype properties / RegExp.prototype[Symbol.match]",
-  "es6.regexp.replace": "RegExp.prototype properties / RegExp.prototype[Symbol.replace]",
-  "es6.regexp.split": "RegExp.prototype properties / RegExp.prototype[Symbol.split]",
-  "es6.regexp.search": "RegExp.prototype properties / RegExp.prototype[Symbol.search]",
+  "es6.regexp.match":
+    "RegExp.prototype properties / RegExp.prototype[Symbol.match]",
+  "es6.regexp.replace":
+    "RegExp.prototype properties / RegExp.prototype[Symbol.replace]",
+  "es6.regexp.split":
+    "RegExp.prototype properties / RegExp.prototype[Symbol.split]",
+  "es6.regexp.search":
+    "RegExp.prototype properties / RegExp.prototype[Symbol.search]",
 
   "es6.array.from": "Array static methods / Array.from",
   "es6.array.of": "Array static methods / Array.of",
 
-  "es6.array.copy-within": "Array.prototype methods / Array.prototype.copyWithin",
+  "es6.array.copy-within":
+    "Array.prototype methods / Array.prototype.copyWithin",
   "es6.array.find": "Array.prototype methods / Array.prototype.find",
   "es6.array.find-index": "Array.prototype methods / Array.prototype.findIndex",
   "es6.array.fill": "Array.prototype methods / Array.prototype.fill",
@@ -174,10 +192,10 @@ const es2015 = {
   "es6.array.iterator": {
     features: [
       "Array.prototype methods / Array.prototype.keys",
-     // can use Symbol.iterator, not implemented in many environments
-     // "Array.prototype methods / Array.prototype.values",
+      // can use Symbol.iterator, not implemented in many environments
+      // "Array.prototype methods / Array.prototype.values",
       "Array.prototype methods / Array.prototype.entries",
-    ]
+    ],
   },
 
   "es6.number.is-finite": "Number properties / Number.isFinite",
@@ -216,11 +234,25 @@ const es2016 = {
 const es2017 = {
   "es7.object.values": "Object static methods / Object.values",
   "es7.object.entries": "Object static methods / Object.entries",
-  "es7.object.get-own-property-descriptors": "Object static methods / Object.getOwnPropertyDescriptors",
+  "es7.object.get-own-property-descriptors":
+    "Object static methods / Object.getOwnPropertyDescriptors",
   "es7.string.pad-start": "String padding / String.prototype.padStart",
   "es7.string.pad-end": "String padding / String.prototype.padEnd",
 };
 
+const es2018 = {
+  "es7.promise.finally": "Promise.prototype.finally",
+  "es7.symbol.async-iterator": "Asynchronous Iterators",
+};
+
 const proposals = require("./shipped-proposals").builtIns;
 
-module.exports = Object.assign({}, es5, es2015, es2016, es2017, proposals);
+module.exports = Object.assign(
+  {},
+  es5,
+  es2015,
+  es2016,
+  es2017,
+  es2018,
+  proposals
+);

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

@@ -85,6 +85,9 @@ const es2017 = {
 };
 
 const es2018 = {
+  "proposal-async-generator-functions": "Asynchronous Iterators",
+  "proposal-object-rest-spread": "object rest/spread properties",
+  "proposal-unicode-property-regex": "RegExp Unicode Property Escapes",
   "transform-dotall-regex": "s (dotAll) flag for regular expressions",
 };
 

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

@@ -218,11 +218,6 @@
     "opera": "42",
     "electron": "1.6"
   },
-  "transform-dotall-regex": {
-    "chrome": "62",
-    "safari": "11.1",
-    "opera": "49"
-  },
   "proposal-async-generator-functions": {
     "chrome": "63",
     "firefox": "57",
@@ -237,15 +232,20 @@
     "opera": "47",
     "electron": "2"
   },
+  "proposal-unicode-property-regex": {
+    "chrome": "64",
+    "safari": "11.1",
+    "opera": "51"
+  },
+  "transform-dotall-regex": {
+    "chrome": "62",
+    "safari": "11.1",
+    "opera": "49"
+  },
   "proposal-optional-catch-binding": {
     "chrome": "66",
     "firefox": "58",
     "safari": "11.1",
     "opera": "53"
-  },
-  "proposal-unicode-property-regex": {
-    "chrome": "64",
-    "safari": "11.1",
-    "opera": "51"
   }
 }

packages/babel-preset-env/data/shipped-proposals.js

@@ -1,16 +1,10 @@
 // These mappings represent the builtin/feature proposals that have been
 // shipped by browsers, and are enabled by the `shippedProposals` option.
 
-const builtIns = {
-  "es7.promise.finally": "Promise.prototype.finally",
-  "es7.symbol.async-iterator": "Asynchronous Iterators",
-};
+const builtIns = {};
 
 const features = {
-  "proposal-async-generator-functions": "Asynchronous Iterators",
-  "proposal-object-rest-spread": "object rest/spread properties",
   "proposal-optional-catch-binding": "optional catch binding",
-  "proposal-unicode-property-regex": "RegExp Unicode Property Escapes",
 };
 
 const pluginSyntaxMap = new Map([

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

@@ -30,6 +30,9 @@ Using plugins:
   transform-regenerator { "android":"4" }
   transform-exponentiation-operator { "android":"4" }
   transform-async-to-generator { "android":"4" }
+  proposal-async-generator-functions { "android":"4" }
+  proposal-object-rest-spread { "android":"4" }
+  proposal-unicode-property-regex { "android":"4" }
   transform-dotall-regex { "android":"4" }
 
 Using polyfills with `entry` option:
@@ -130,6 +133,8 @@ Using polyfills with `entry` option:
   es7.object.get-own-property-descriptors { "android":"4" }
   es7.string.pad-start { "android":"4" }
   es7.string.pad-end { "android":"4" }
+  es7.promise.finally { "android":"4" }
+  es7.symbol.async-iterator { "android":"4" }
   web.timers { "android":"4" }
   web.immediate { "android":"4" }
   web.dom.iterable { "android":"4" }

packages/babel-preset-env/test/debug-fixtures/builtins-no-import/stdout.txt

@@ -13,6 +13,9 @@ Using plugins:
   transform-destructuring { "node":"6" }
   transform-exponentiation-operator { "node":"6" }
   transform-async-to-generator { "node":"6" }
+  proposal-async-generator-functions { "node":"6" }
+  proposal-object-rest-spread { "node":"6" }
+  proposal-unicode-property-regex { "node":"6" }
   transform-dotall-regex { "node":"6" }
 
 Using polyfills with `entry` option:

packages/babel-preset-env/test/debug-fixtures/builtins-uglify/stdout.txt

@@ -33,6 +33,9 @@ Using plugins:
   transform-regenerator {}
   transform-exponentiation-operator {}
   transform-async-to-generator {}
+  proposal-async-generator-functions { "chrome":"55" }
+  proposal-object-rest-spread { "chrome":"55" }
+  proposal-unicode-property-regex { "chrome":"55" }
   transform-dotall-regex { "chrome":"55" }
 
 Using polyfills with `entry` option:
@@ -41,6 +44,8 @@ Using polyfills with `entry` option:
   es6.array.sort { "chrome":"55" }
   es7.string.pad-start { "chrome":"55" }
   es7.string.pad-end { "chrome":"55" }
+  es7.promise.finally { "chrome":"55" }
+  es7.symbol.async-iterator { "chrome":"55" }
   web.timers { "chrome":"55" }
   web.immediate { "chrome":"55" }
   web.dom.iterable { "chrome":"55" }

packages/babel-preset-env/test/debug-fixtures/builtins/stdout.txt

@@ -32,6 +32,9 @@ Using plugins:
   transform-regenerator { "ie":"10" }
   transform-exponentiation-operator { "ie":"10", "node":"6" }
   transform-async-to-generator { "chrome":"54", "ie":"10", "node":"6" }
+  proposal-async-generator-functions { "chrome":"54", "ie":"10", "node":"6" }
+  proposal-object-rest-spread { "chrome":"54", "ie":"10", "node":"6" }
+  proposal-unicode-property-regex { "chrome":"54", "ie":"10", "node":"6" }
   transform-dotall-regex { "chrome":"54", "ie":"10", "node":"6" }
 
 Using polyfills with `entry` option:
@@ -132,6 +135,8 @@ Using polyfills with `entry` option:
   es7.object.get-own-property-descriptors { "ie":"10", "node":"6" }
   es7.string.pad-start { "chrome":"54", "ie":"10", "node":"6" }
   es7.string.pad-end { "chrome":"54", "ie":"10", "node":"6" }
+  es7.promise.finally { "chrome":"54", "ie":"10", "node":"6" }
+  es7.symbol.async-iterator { "chrome":"54", "ie":"10", "node":"6" }
   web.timers { "chrome":"54", "ie":"10", "node":"6" }
   web.immediate { "chrome":"54", "ie":"10", "node":"6" }
   web.dom.iterable { "chrome":"54", "ie":"10", "node":"6" }

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

@@ -25,6 +25,9 @@ Using plugins:
   transform-regenerator { "electron":"0.36" }
   transform-exponentiation-operator { "electron":"0.36" }
   transform-async-to-generator { "electron":"0.36" }
+  proposal-async-generator-functions { "electron":"0.36" }
+  proposal-object-rest-spread { "electron":"0.36" }
+  proposal-unicode-property-regex { "electron":"0.36" }
   transform-dotall-regex { "electron":"0.36" }
 
 Using polyfills with `entry` option:
@@ -89,6 +92,8 @@ Using polyfills with `entry` option:
   es7.object.get-own-property-descriptors { "electron":"0.36" }
   es7.string.pad-start { "electron":"0.36" }
   es7.string.pad-end { "electron":"0.36" }
+  es7.promise.finally { "electron":"0.36" }
+  es7.symbol.async-iterator { "electron":"0.36" }
   web.timers { "electron":"0.36" }
   web.immediate { "electron":"0.36" }
   web.dom.iterable { "electron":"0.36" }

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

@@ -30,6 +30,9 @@ Using plugins:
   transform-regenerator {}
   transform-exponentiation-operator {}
   transform-async-to-generator {}
+  proposal-async-generator-functions { "chrome":"55" }
+  proposal-object-rest-spread { "chrome":"55" }
+  proposal-unicode-property-regex { "chrome":"55" }
   transform-dotall-regex { "chrome":"55" }
 
 Using polyfills with `entry` option:
@@ -38,6 +41,8 @@ Using polyfills with `entry` option:
   es6.array.sort { "chrome":"55" }
   es7.string.pad-start { "chrome":"55" }
   es7.string.pad-end { "chrome":"55" }
+  es7.promise.finally { "chrome":"55" }
+  es7.symbol.async-iterator { "chrome":"55" }
   web.timers { "chrome":"55" }
   web.immediate { "chrome":"55" }
   web.dom.iterable { "chrome":"55" }

packages/babel-preset-env/test/debug-fixtures/plugins-only/stdout.txt

@@ -20,6 +20,9 @@ Using plugins:
   transform-function-name { "firefox":"52" }
   transform-for-of { "firefox":"52" }
   transform-destructuring { "firefox":"52" }
+  proposal-async-generator-functions { "firefox":"52", "node":"7.4" }
+  proposal-object-rest-spread { "firefox":"52", "node":"7.4" }
+  proposal-unicode-property-regex { "firefox":"52", "node":"7.4" }
   transform-dotall-regex { "firefox":"52", "node":"7.4" }
 
 Using polyfills: No polyfills were added, since the `useBuiltIns` option was not set.

packages/babel-preset-env/test/debug-fixtures/shippedProposals-chrome60/stdout.txt

@@ -8,11 +8,11 @@ Using targets:
 Using modules transform: commonjs
 
 Using plugins:
-  transform-dotall-regex { "chrome":"60" }
   proposal-async-generator-functions { "chrome":"60" }
   syntax-object-rest-spread { "chrome":"60" }
-  proposal-optional-catch-binding { "chrome":"60" }
   proposal-unicode-property-regex { "chrome":"60" }
+  transform-dotall-regex { "chrome":"60" }
+  proposal-optional-catch-binding { "chrome":"60" }
 
 Using polyfills with `entry` option:
 
@@ -23,4 +23,4 @@ Using polyfills with `entry` option:
   web.timers { "chrome":"60" }
   web.immediate { "chrome":"60" }
   web.dom.iterable { "chrome":"60" }
-🎉  Successfully compiled 1 file with Babel.
+🎉  Successfully compiled 1 file with Babel.

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

@@ -28,11 +28,11 @@ Using plugins:
   transform-regenerator {}
   transform-exponentiation-operator {}
   transform-async-to-generator {}
-  transform-dotall-regex {}
   proposal-async-generator-functions {}
   proposal-object-rest-spread {}
-  proposal-optional-catch-binding {}
   proposal-unicode-property-regex {}
+  transform-dotall-regex {}
+  proposal-optional-catch-binding {}
 
 Using polyfills with `entry` option:
 

packages/babel-preset-env/test/debug-fixtures/specific-targets/stdout.txt

@@ -35,6 +35,9 @@ Using plugins:
   transform-regenerator { "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   transform-exponentiation-operator { "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   transform-async-to-generator { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
+  proposal-async-generator-functions { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
+  proposal-object-rest-spread { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
+  proposal-unicode-property-regex { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   transform-dotall-regex { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
 
 Using polyfills with `entry` option:
@@ -136,6 +139,8 @@ Using polyfills with `entry` option:
   es7.object.get-own-property-descriptors { "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   es7.string.pad-start { "chrome":"54", "edge":"13", "ie":"10", "ios":"9", "safari":"7" }
   es7.string.pad-end { "chrome":"54", "edge":"13", "ie":"10", "ios":"9", "safari":"7" }
+  es7.promise.finally { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
+  es7.symbol.async-iterator { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   web.timers { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   web.immediate { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }
   web.dom.iterable { "chrome":"54", "edge":"13", "firefox":"49", "ie":"10", "ios":"9", "safari":"7" }

packages/babel-preset-env/test/debug-fixtures/usage-none/stdout.txt

@@ -31,6 +31,9 @@ Using plugins:
   transform-regenerator { "firefox":"50", "ie":"11" }
   transform-exponentiation-operator { "firefox":"50", "ie":"11" }
   transform-async-to-generator { "chrome":"52", "firefox":"50", "ie":"11" }
+  proposal-async-generator-functions { "chrome":"52", "firefox":"50", "ie":"11" }
+  proposal-object-rest-spread { "chrome":"52", "firefox":"50", "ie":"11" }
+  proposal-unicode-property-regex { "chrome":"52", "firefox":"50", "ie":"11" }
   transform-dotall-regex { "chrome":"52", "firefox":"50", "ie":"11" }
 
 Using polyfills with `usage` option:

packages/babel-preset-env/test/debug-fixtures/usage-with-import/stdout.txt

@@ -8,9 +8,12 @@ Using targets:
 Using modules transform: commonjs
 
 Using plugins:
+  proposal-async-generator-functions { "chrome":"55" }
+  proposal-object-rest-spread { "chrome":"55" }
+  proposal-unicode-property-regex { "chrome":"55" }
   transform-dotall-regex { "chrome":"55" }
 
 Using polyfills with `usage` option:
 
 [src/in.js] Based on your code and targets, none were added.
-🎉  Successfully compiled 1 file with Babel.
+🎉  Successfully compiled 1 file with Babel.

packages/babel-preset-env/test/debug-fixtures/usage/stdout.txt

@@ -31,6 +31,9 @@ Using plugins:
   transform-regenerator { "firefox":"50", "ie":"11" }
   transform-exponentiation-operator { "firefox":"50", "ie":"11" }
   transform-async-to-generator { "chrome":"52", "firefox":"50", "ie":"11" }
+  proposal-async-generator-functions { "chrome":"52", "firefox":"50", "ie":"11" }
+  proposal-object-rest-spread { "chrome":"52", "firefox":"50", "ie":"11" }
+  proposal-unicode-property-regex { "chrome":"52", "firefox":"50", "ie":"11" }
   transform-dotall-regex { "chrome":"52", "firefox":"50", "ie":"11" }
 
 Using polyfills with `usage` option:

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

@@ -41,6 +41,9 @@ Using plugins:
   transform-regenerator { "electron":"0.36", "ie":"10" }
   transform-exponentiation-operator { "electron":"0.36", "ie":"10", "node":"6.1" }
   transform-async-to-generator { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
+  proposal-async-generator-functions { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
+  proposal-object-rest-spread { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
+  proposal-unicode-property-regex { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   transform-dotall-regex { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
 
 Using polyfills with `entry` option:
@@ -158,6 +161,8 @@ Using polyfills with `entry` option:
   es7.object.get-own-property-descriptors { "electron":"0.36", "ie":"10", "node":"6.1" }
   es7.string.pad-start { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   es7.string.pad-end { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
+  es7.promise.finally { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
+  es7.symbol.async-iterator { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   web.timers { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   web.immediate { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }
   web.dom.iterable { "chrome":"54", "electron":"0.36", "ie":"10", "node":"6.1" }

packages/babel-preset-env/test/debug-fixtures/versions-strings/stdout.txt

@@ -32,6 +32,9 @@ Using plugins:
   transform-regenerator { "ie":"10" }
   transform-exponentiation-operator { "ie":"10", "node":"6.10" }
   transform-async-to-generator { "chrome":"54", "ie":"10", "node":"6.10" }
+  proposal-async-generator-functions { "chrome":"54", "ie":"10", "node":"6.10" }
+  proposal-object-rest-spread { "chrome":"54", "ie":"10", "node":"6.10" }
+  proposal-unicode-property-regex { "chrome":"54", "ie":"10", "node":"6.10" }
   transform-dotall-regex { "chrome":"54", "ie":"10", "node":"6.10" }
 
 Using polyfills with `entry` option:
@@ -132,6 +135,8 @@ Using polyfills with `entry` option:
   es7.object.get-own-property-descriptors { "ie":"10", "node":"6.10" }
   es7.string.pad-start { "chrome":"54", "ie":"10", "node":"6.10" }
   es7.string.pad-end { "chrome":"54", "ie":"10", "node":"6.10" }
+  es7.promise.finally { "chrome":"54", "ie":"10", "node":"6.10" }
+  es7.symbol.async-iterator { "chrome":"54", "ie":"10", "node":"6.10" }
   web.timers { "chrome":"54", "ie":"10", "node":"6.10" }
   web.immediate { "chrome":"54", "ie":"10", "node":"6.10" }
   web.dom.iterable { "chrome":"54", "ie":"10", "node":"6.10" }

packages/babel-preset-env/test/fixtures/dom-iterable/symbol-iterator-in/output.mjs

@@ -1,3 +1,4 @@
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/es6.symbol";
 import "core-js/modules/web.dom.iterable";
 Symbol.iterator in arr;

packages/babel-preset-env/test/fixtures/dom-iterable/symbol-iterator/output.mjs

@@ -1,3 +1,4 @@
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/es6.symbol";
 import "core-js/modules/web.dom.iterable";
 arr[Symbol.iterator]();

packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/builtins-used-native-support/output.mjs

@@ -1,3 +1,4 @@
+import "core-js/modules/es7.symbol.async-iterator";
 Array.from; // static method
 
 Map; // built-in

packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/builtins-used/output.mjs

@@ -1,4 +1,5 @@
 import "core-js/modules/web.dom.iterable";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/es6.symbol";
 import "core-js/modules/es6.regexp.match";
 import "core-js/modules/es6.promise";

packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/for-of-destructure-with/output.mjs

@@ -1,8 +1,9 @@
 import "core-js/modules/es7.string.pad-end";
 import "core-js/modules/es7.string.pad-start";
 
-for (const {
-  padStart
-} of foo) {
+for (const _ref of foo) {
+  const {
+    padStart
+  } = _ref;
   console.log('b'.padEnd(5));
 }

packages/babel-preset-env/test/fixtures/preset-options-add-used-built-ins/for-of-destructure-without/output.mjs

@@ -1,5 +1,6 @@
-for (const {
-  a
-} of foo) {
+for (const _ref of foo) {
+  const {
+    a
+  } = _ref;
   console.log(a);
 }

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

@@ -1,6 +1,8 @@
 import "core-js/modules/es6.array.sort";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/electron/output.mjs

@@ -5,6 +5,8 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/exclude-include/output.mjs

@@ -1,6 +1,8 @@
 import "core-js/modules/es6.array.sort";
 import "core-js/modules/es6.map";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/exclude-regenerator/output.mjs

@@ -110,6 +110,8 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/force-all-transforms/output.mjs

@@ -1,6 +1,8 @@
 import "core-js/modules/es6.array.sort";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/ie-11-built-ins/output.mjs

@@ -91,6 +91,8 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/include-built-ins/output.mjs

@@ -3,6 +3,8 @@ import "core-js/modules/es6.map";
 import "core-js/modules/es6.set";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-all/output.mjs

@@ -110,6 +110,8 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-chrome-48/output.mjs

@@ -40,6 +40,8 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-chrome-49/output.mjs

@@ -26,6 +26,8 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-chrome-66/input.mjs

@@ -0,0 +1,16 @@
+import "@babel/polyfill";
+
+const foo = {
+  a: true,
+};
+
+const bar = {
+  ...foo,
+  b: false,
+};
+
+async function baz() {
+  for await (const x of someAsyncThing()) {
+    console.log(x);
+  }
+}

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-chrome-66/options.json

@@ -0,0 +1,11 @@
+{
+  "presets": [
+    ["../../../../lib", {
+      "targets": {
+        "chrome": "66"
+      },
+      "modules": false,
+      "useBuiltIns": "entry"
+    }]
+  ]
+}

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-chrome-66/output.mjs

@@ -0,0 +1,15 @@
+import "core-js/modules/web.timers";
+import "core-js/modules/web.immediate";
+import "core-js/modules/web.dom.iterable";
+const foo = {
+  a: true
+};
+const bar = { ...foo,
+  b: false
+};
+
+async function baz() {
+  for await (const x of someAsyncThing()) {
+    console.log(x);
+  }
+}

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-ie-9/output.mjs

@@ -93,6 +93,8 @@ import "core-js/modules/es7.object.entries";
 import "core-js/modules/es7.object.get-own-property-descriptors";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-import/output.mjs

@@ -1,6 +1,8 @@
 import "core-js/modules/es6.array.sort";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-node-web/output.mjs

@@ -1,6 +1,8 @@
 import "core-js/modules/es6.array.sort";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "core-js/modules/web.timers";
 import "core-js/modules/web.immediate";
 import "core-js/modules/web.dom.iterable";

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-node/output.mjs

@@ -1,4 +1,6 @@
 import "core-js/modules/es6.array.sort";
 import "core-js/modules/es7.string.pad-start";
 import "core-js/modules/es7.string.pad-end";
+import "core-js/modules/es7.promise.finally";
+import "core-js/modules/es7.symbol.async-iterator";
 import "regenerator-runtime/runtime";

packages/babel-preset-env/test/fixtures/preset-options/use-builtins-require/output.js

@@ -4,6 +4,10 @@ require("core-js/modules/es7.string.pad-start");
 
 require("core-js/modules/es7.string.pad-end");
 
+require("core-js/modules/es7.promise.finally");
+
+require("core-js/modules/es7.symbol.async-iterator");
+
 require("core-js/modules/web.timers");
 
 require("core-js/modules/web.immediate");