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MIT License
Copyright (c) 2014-present Nicolò Ribaudo and other contributors
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# babel-plugin-polyfill-corejs2
## Install
Using npm:
```sh
npm install --save-dev babel-plugin-polyfill-corejs2
```
or using yarn:
```sh
yarn add babel-plugin-polyfill-corejs2 --dev
```
## Usage
Add this plugin to your Babel configuration:
```json
{
"plugins": [["polyfill-corejs2", { "method": "usage-global" }]]
}
```
This package supports the `usage-pure`, `usage-global`, and `entry-global` methods.
When `entry-global` is used, it replaces imports to `core-js`.

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import corejs2Polyfills from '@babel/compat-data/corejs2-built-ins';
import semver from 'semver';
import defineProvider from '@babel/helper-define-polyfill-provider';
import * as _babel from '@babel/core';
const define = (name, pure, global = [], meta) => {
return {
name,
pure,
global,
meta
};
};
const pureAndGlobal = (pure, global, minRuntimeVersion = null) => define(global[0], pure, global, {
minRuntimeVersion
});
const globalOnly = global => define(global[0], null, global);
const pureOnly = (pure, name) => define(name, pure, []);
const ArrayNatureIterators = ["es6.object.to-string", "es6.array.iterator", "web.dom.iterable"];
const CommonIterators = ["es6.string.iterator", ...ArrayNatureIterators];
const PromiseDependencies = ["es6.object.to-string", "es6.promise"];
const BuiltIns = {
DataView: globalOnly(["es6.typed.data-view"]),
Float32Array: globalOnly(["es6.typed.float32-array"]),
Float64Array: globalOnly(["es6.typed.float64-array"]),
Int8Array: globalOnly(["es6.typed.int8-array"]),
Int16Array: globalOnly(["es6.typed.int16-array"]),
Int32Array: globalOnly(["es6.typed.int32-array"]),
Map: pureAndGlobal("map", ["es6.map", ...CommonIterators]),
Number: globalOnly(["es6.number.constructor"]),
Promise: pureAndGlobal("promise", PromiseDependencies),
RegExp: globalOnly(["es6.regexp.constructor"]),
Set: pureAndGlobal("set", ["es6.set", ...CommonIterators]),
Symbol: pureAndGlobal("symbol/index", ["es6.symbol"]),
Uint8Array: globalOnly(["es6.typed.uint8-array"]),
Uint8ClampedArray: globalOnly(["es6.typed.uint8-clamped-array"]),
Uint16Array: globalOnly(["es6.typed.uint16-array"]),
Uint32Array: globalOnly(["es6.typed.uint32-array"]),
WeakMap: pureAndGlobal("weak-map", ["es6.weak-map", ...CommonIterators]),
WeakSet: pureAndGlobal("weak-set", ["es6.weak-set", ...CommonIterators]),
setImmediate: pureOnly("set-immediate", "web.immediate"),
clearImmediate: pureOnly("clear-immediate", "web.immediate"),
parseFloat: pureOnly("parse-float", "es6.parse-float"),
parseInt: pureOnly("parse-int", "es6.parse-int")
};
const InstanceProperties = {
__defineGetter__: globalOnly(["es7.object.define-getter"]),
__defineSetter__: globalOnly(["es7.object.define-setter"]),
__lookupGetter__: globalOnly(["es7.object.lookup-getter"]),
__lookupSetter__: globalOnly(["es7.object.lookup-setter"]),
anchor: globalOnly(["es6.string.anchor"]),
big: globalOnly(["es6.string.big"]),
bind: globalOnly(["es6.function.bind"]),
blink: globalOnly(["es6.string.blink"]),
bold: globalOnly(["es6.string.bold"]),
codePointAt: globalOnly(["es6.string.code-point-at"]),
copyWithin: globalOnly(["es6.array.copy-within"]),
endsWith: globalOnly(["es6.string.ends-with"]),
entries: globalOnly(ArrayNatureIterators),
every: globalOnly(["es6.array.every"]),
fill: globalOnly(["es6.array.fill"]),
filter: globalOnly(["es6.array.filter"]),
finally: globalOnly(["es7.promise.finally", ...PromiseDependencies]),
find: globalOnly(["es6.array.find"]),
findIndex: globalOnly(["es6.array.find-index"]),
fixed: globalOnly(["es6.string.fixed"]),
flags: globalOnly(["es6.regexp.flags"]),
flatMap: globalOnly(["es7.array.flat-map"]),
fontcolor: globalOnly(["es6.string.fontcolor"]),
fontsize: globalOnly(["es6.string.fontsize"]),
forEach: globalOnly(["es6.array.for-each"]),
includes: globalOnly(["es6.string.includes", "es7.array.includes"]),
indexOf: globalOnly(["es6.array.index-of"]),
italics: globalOnly(["es6.string.italics"]),
keys: globalOnly(ArrayNatureIterators),
lastIndexOf: globalOnly(["es6.array.last-index-of"]),
link: globalOnly(["es6.string.link"]),
map: globalOnly(["es6.array.map"]),
match: globalOnly(["es6.regexp.match"]),
name: globalOnly(["es6.function.name"]),
padStart: globalOnly(["es7.string.pad-start"]),
padEnd: globalOnly(["es7.string.pad-end"]),
reduce: globalOnly(["es6.array.reduce"]),
reduceRight: globalOnly(["es6.array.reduce-right"]),
repeat: globalOnly(["es6.string.repeat"]),
replace: globalOnly(["es6.regexp.replace"]),
search: globalOnly(["es6.regexp.search"]),
small: globalOnly(["es6.string.small"]),
some: globalOnly(["es6.array.some"]),
sort: globalOnly(["es6.array.sort"]),
split: globalOnly(["es6.regexp.split"]),
startsWith: globalOnly(["es6.string.starts-with"]),
strike: globalOnly(["es6.string.strike"]),
sub: globalOnly(["es6.string.sub"]),
sup: globalOnly(["es6.string.sup"]),
toISOString: globalOnly(["es6.date.to-iso-string"]),
toJSON: globalOnly(["es6.date.to-json"]),
toString: globalOnly(["es6.object.to-string", "es6.date.to-string", "es6.regexp.to-string"]),
trim: globalOnly(["es6.string.trim"]),
trimEnd: globalOnly(["es7.string.trim-right"]),
trimLeft: globalOnly(["es7.string.trim-left"]),
trimRight: globalOnly(["es7.string.trim-right"]),
trimStart: globalOnly(["es7.string.trim-left"]),
values: globalOnly(ArrayNatureIterators)
};
// This isn't present in older @babel/compat-data versions
if ("es6.array.slice" in corejs2Polyfills) {
InstanceProperties.slice = globalOnly(["es6.array.slice"]);
}
const StaticProperties = {
Array: {
from: pureAndGlobal("array/from", ["es6.symbol", "es6.array.from", ...CommonIterators]),
isArray: pureAndGlobal("array/is-array", ["es6.array.is-array"]),
of: pureAndGlobal("array/of", ["es6.array.of"])
},
Date: {
now: pureAndGlobal("date/now", ["es6.date.now"])
},
JSON: {
stringify: pureOnly("json/stringify", "es6.symbol")
},
Math: {
// 'Math' was not included in the 7.0.0
// release of '@babel/runtime'. See issue https://github.com/babel/babel/pull/8616.
acosh: pureAndGlobal("math/acosh", ["es6.math.acosh"], "7.0.1"),
asinh: pureAndGlobal("math/asinh", ["es6.math.asinh"], "7.0.1"),
atanh: pureAndGlobal("math/atanh", ["es6.math.atanh"], "7.0.1"),
cbrt: pureAndGlobal("math/cbrt", ["es6.math.cbrt"], "7.0.1"),
clz32: pureAndGlobal("math/clz32", ["es6.math.clz32"], "7.0.1"),
cosh: pureAndGlobal("math/cosh", ["es6.math.cosh"], "7.0.1"),
expm1: pureAndGlobal("math/expm1", ["es6.math.expm1"], "7.0.1"),
fround: pureAndGlobal("math/fround", ["es6.math.fround"], "7.0.1"),
hypot: pureAndGlobal("math/hypot", ["es6.math.hypot"], "7.0.1"),
imul: pureAndGlobal("math/imul", ["es6.math.imul"], "7.0.1"),
log1p: pureAndGlobal("math/log1p", ["es6.math.log1p"], "7.0.1"),
log10: pureAndGlobal("math/log10", ["es6.math.log10"], "7.0.1"),
log2: pureAndGlobal("math/log2", ["es6.math.log2"], "7.0.1"),
sign: pureAndGlobal("math/sign", ["es6.math.sign"], "7.0.1"),
sinh: pureAndGlobal("math/sinh", ["es6.math.sinh"], "7.0.1"),
tanh: pureAndGlobal("math/tanh", ["es6.math.tanh"], "7.0.1"),
trunc: pureAndGlobal("math/trunc", ["es6.math.trunc"], "7.0.1")
},
Number: {
EPSILON: pureAndGlobal("number/epsilon", ["es6.number.epsilon"]),
MIN_SAFE_INTEGER: pureAndGlobal("number/min-safe-integer", ["es6.number.min-safe-integer"]),
MAX_SAFE_INTEGER: pureAndGlobal("number/max-safe-integer", ["es6.number.max-safe-integer"]),
isFinite: pureAndGlobal("number/is-finite", ["es6.number.is-finite"]),
isInteger: pureAndGlobal("number/is-integer", ["es6.number.is-integer"]),
isSafeInteger: pureAndGlobal("number/is-safe-integer", ["es6.number.is-safe-integer"]),
isNaN: pureAndGlobal("number/is-nan", ["es6.number.is-nan"]),
parseFloat: pureAndGlobal("number/parse-float", ["es6.number.parse-float"]),
parseInt: pureAndGlobal("number/parse-int", ["es6.number.parse-int"])
},
Object: {
assign: pureAndGlobal("object/assign", ["es6.object.assign"]),
create: pureAndGlobal("object/create", ["es6.object.create"]),
defineProperties: pureAndGlobal("object/define-properties", ["es6.object.define-properties"]),
defineProperty: pureAndGlobal("object/define-property", ["es6.object.define-property"]),
entries: pureAndGlobal("object/entries", ["es7.object.entries"]),
freeze: pureAndGlobal("object/freeze", ["es6.object.freeze"]),
getOwnPropertyDescriptor: pureAndGlobal("object/get-own-property-descriptor", ["es6.object.get-own-property-descriptor"]),
getOwnPropertyDescriptors: pureAndGlobal("object/get-own-property-descriptors", ["es7.object.get-own-property-descriptors"]),
getOwnPropertyNames: pureAndGlobal("object/get-own-property-names", ["es6.object.get-own-property-names"]),
getOwnPropertySymbols: pureAndGlobal("object/get-own-property-symbols", ["es6.symbol"]),
getPrototypeOf: pureAndGlobal("object/get-prototype-of", ["es6.object.get-prototype-of"]),
is: pureAndGlobal("object/is", ["es6.object.is"]),
isExtensible: pureAndGlobal("object/is-extensible", ["es6.object.is-extensible"]),
isFrozen: pureAndGlobal("object/is-frozen", ["es6.object.is-frozen"]),
isSealed: pureAndGlobal("object/is-sealed", ["es6.object.is-sealed"]),
keys: pureAndGlobal("object/keys", ["es6.object.keys"]),
preventExtensions: pureAndGlobal("object/prevent-extensions", ["es6.object.prevent-extensions"]),
seal: pureAndGlobal("object/seal", ["es6.object.seal"]),
setPrototypeOf: pureAndGlobal("object/set-prototype-of", ["es6.object.set-prototype-of"]),
values: pureAndGlobal("object/values", ["es7.object.values"])
},
Promise: {
all: globalOnly(CommonIterators),
race: globalOnly(CommonIterators)
},
Reflect: {
apply: pureAndGlobal("reflect/apply", ["es6.reflect.apply"]),
construct: pureAndGlobal("reflect/construct", ["es6.reflect.construct"]),
defineProperty: pureAndGlobal("reflect/define-property", ["es6.reflect.define-property"]),
deleteProperty: pureAndGlobal("reflect/delete-property", ["es6.reflect.delete-property"]),
get: pureAndGlobal("reflect/get", ["es6.reflect.get"]),
getOwnPropertyDescriptor: pureAndGlobal("reflect/get-own-property-descriptor", ["es6.reflect.get-own-property-descriptor"]),
getPrototypeOf: pureAndGlobal("reflect/get-prototype-of", ["es6.reflect.get-prototype-of"]),
has: pureAndGlobal("reflect/has", ["es6.reflect.has"]),
isExtensible: pureAndGlobal("reflect/is-extensible", ["es6.reflect.is-extensible"]),
ownKeys: pureAndGlobal("reflect/own-keys", ["es6.reflect.own-keys"]),
preventExtensions: pureAndGlobal("reflect/prevent-extensions", ["es6.reflect.prevent-extensions"]),
set: pureAndGlobal("reflect/set", ["es6.reflect.set"]),
setPrototypeOf: pureAndGlobal("reflect/set-prototype-of", ["es6.reflect.set-prototype-of"])
},
String: {
at: pureOnly("string/at", "es7.string.at"),
fromCodePoint: pureAndGlobal("string/from-code-point", ["es6.string.from-code-point"]),
raw: pureAndGlobal("string/raw", ["es6.string.raw"])
},
Symbol: {
// FIXME: Pure disabled to work around zloirock/core-js#262.
asyncIterator: globalOnly(["es6.symbol", "es7.symbol.async-iterator"]),
for: pureOnly("symbol/for", "es6.symbol"),
hasInstance: pureOnly("symbol/has-instance", "es6.symbol"),
isConcatSpreadable: pureOnly("symbol/is-concat-spreadable", "es6.symbol"),
iterator: define("es6.symbol", "symbol/iterator", CommonIterators),
keyFor: pureOnly("symbol/key-for", "es6.symbol"),
match: pureAndGlobal("symbol/match", ["es6.regexp.match"]),
replace: pureOnly("symbol/replace", "es6.symbol"),
search: pureOnly("symbol/search", "es6.symbol"),
species: pureOnly("symbol/species", "es6.symbol"),
split: pureOnly("symbol/split", "es6.symbol"),
toPrimitive: pureOnly("symbol/to-primitive", "es6.symbol"),
toStringTag: pureOnly("symbol/to-string-tag", "es6.symbol"),
unscopables: pureOnly("symbol/unscopables", "es6.symbol")
}
};
const webPolyfills = {
"web.timers": {},
"web.immediate": {},
"web.dom.iterable": {}
};
const purePolyfills = {
"es6.parse-float": {},
"es6.parse-int": {},
"es7.string.at": {}
};
function addPlatformSpecificPolyfills (targets, method, polyfills) {
const targetNames = Object.keys(targets);
const isAnyTarget = !targetNames.length;
const isWebTarget = targetNames.some(name => name !== "node");
return {
...polyfills,
...(method === "usage-pure" ? purePolyfills : null),
...(isAnyTarget || isWebTarget ? webPolyfills : null)
};
}
function hasMinVersion(minVersion, runtimeVersion) {
// If the range is unavailable, we're running the script during Babel's
// build process, and we want to assume that all versions are satisfied so
// that the built output will include all definitions.
if (!runtimeVersion || !minVersion) return true;
runtimeVersion = String(runtimeVersion);
// semver.intersects() has some surprising behavior with comparing ranges
// with preprelease versions. We add '^' to ensure that we are always
// comparing ranges with ranges, which sidesteps this logic.
// For example:
//
// semver.intersects(`<7.0.1`, "7.0.0-beta.0") // false - surprising
// semver.intersects(`<7.0.1`, "^7.0.0-beta.0") // true - expected
//
// This is because the first falls back to
//
// semver.satisfies("7.0.0-beta.0", `<7.0.1`) // false - surprising
//
// and this fails because a prerelease version can only satisfy a range
// if it is a prerelease within the same major/minor/patch range.
//
// Note: If this is found to have issues, please also revist the logic in
// babel-core's availableHelper() API.
if (semver.valid(runtimeVersion)) runtimeVersion = `^${runtimeVersion}`;
return !semver.intersects(`<${minVersion}`, runtimeVersion) && !semver.intersects(`>=8.0.0`, runtimeVersion);
}
const {
types: t
} = _babel.default || _babel;
const BABEL_RUNTIME = "@babel/runtime-corejs2";
const presetEnvCompat = "#__secret_key__@babel/preset-env__compatibility";
const runtimeCompat = "#__secret_key__@babel/runtime__compatibility";
const has = Function.call.bind(Object.hasOwnProperty);
var index = defineProvider(function (api, {
[presetEnvCompat]: {
entryInjectRegenerator = false,
noRuntimeName = false
} = {},
[runtimeCompat]: {
useBabelRuntime = false,
runtimeVersion = "",
ext = ".js"
} = {}
}) {
const resolve = api.createMetaResolver({
global: BuiltIns,
static: StaticProperties,
instance: InstanceProperties
});
const {
debug,
shouldInjectPolyfill,
method
} = api;
const polyfills = addPlatformSpecificPolyfills(api.targets, method, corejs2Polyfills);
const coreJSBase = useBabelRuntime ? `${BABEL_RUNTIME}/core-js` : method === "usage-pure" ? "core-js/library/fn" : "core-js/modules";
function inject(name, utils) {
if (typeof name === "string") {
// Some polyfills aren't always available, for example
// web.dom.iterable when targeting node
if (has(polyfills, name) && shouldInjectPolyfill(name)) {
debug(name);
utils.injectGlobalImport(`${coreJSBase}/${name}.js`);
}
return;
}
name.forEach(name => inject(name, utils));
}
function maybeInjectPure(desc, hint, utils) {
let {
pure,
meta,
name
} = desc;
if (!pure || !shouldInjectPolyfill(name)) return;
if (runtimeVersion && meta && meta.minRuntimeVersion && !hasMinVersion(meta && meta.minRuntimeVersion, runtimeVersion)) {
return;
}
// Unfortunately core-js and @babel/runtime-corejs2 don't have the same
// directory structure, so we need to special case this.
if (useBabelRuntime && pure === "symbol/index") pure = "symbol";
return utils.injectDefaultImport(`${coreJSBase}/${pure}${ext}`, hint);
}
return {
name: "corejs2",
runtimeName: noRuntimeName ? null : BABEL_RUNTIME,
polyfills,
entryGlobal(meta, utils, path) {
if (meta.kind === "import" && meta.source === "core-js") {
debug(null);
inject(Object.keys(polyfills), utils);
if (entryInjectRegenerator) {
utils.injectGlobalImport("regenerator-runtime/runtime.js");
}
path.remove();
}
},
usageGlobal(meta, utils) {
const resolved = resolve(meta);
if (!resolved) return;
let deps = resolved.desc.global;
if (resolved.kind !== "global" && "object" in meta && meta.object && meta.placement === "prototype") {
const low = meta.object.toLowerCase();
deps = deps.filter(m => m.includes(low));
}
inject(deps, utils);
},
usagePure(meta, utils, path) {
if (meta.kind === "in") {
if (meta.key === "Symbol.iterator") {
path.replaceWith(t.callExpression(utils.injectDefaultImport(`${coreJSBase}/is-iterable${ext}`, "isIterable"), [path.node.right] // meta.kind === "in" narrows this
));
}
return;
}
if (path.parentPath.isUnaryExpression({
operator: "delete"
})) return;
if (meta.kind === "property") {
// We can't compile destructuring.
if (!path.isMemberExpression()) return;
if (!path.isReferenced()) return;
if (meta.key === "Symbol.iterator" && shouldInjectPolyfill("es6.symbol") && path.parentPath.isCallExpression({
callee: path.node
}) && path.parentPath.node.arguments.length === 0) {
path.parentPath.replaceWith(t.callExpression(utils.injectDefaultImport(`${coreJSBase}/get-iterator${ext}`, "getIterator"), [path.node.object]));
path.skip();
return;
}
}
const resolved = resolve(meta);
if (!resolved) return;
const id = maybeInjectPure(resolved.desc, resolved.name, utils);
if (id) path.replaceWith(id);
},
visitor: method === "usage-global" && {
// yield*
YieldExpression(path) {
if (path.node.delegate) {
inject("web.dom.iterable", api.getUtils(path));
}
},
// for-of, [a, b] = c
"ForOfStatement|ArrayPattern"(path) {
CommonIterators.forEach(name => inject(name, api.getUtils(path)));
}
}
};
});
export default index;
//# sourceMappingURL=index.mjs.map

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"use strict";
exports.__esModule = true;
exports.default = _default;
function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
const webPolyfills = {
"web.timers": {},
"web.immediate": {},
"web.dom.iterable": {}
};
const purePolyfills = {
"es6.parse-float": {},
"es6.parse-int": {},
"es7.string.at": {}
};
function _default(targets, method, polyfills) {
const targetNames = Object.keys(targets);
const isAnyTarget = !targetNames.length;
const isWebTarget = targetNames.some(name => name !== "node");
return _extends({}, polyfills, method === "usage-pure" ? purePolyfills : null, isAnyTarget || isWebTarget ? webPolyfills : null);
}

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"use strict";
exports.__esModule = true;
exports.StaticProperties = exports.InstanceProperties = exports.CommonIterators = exports.BuiltIns = void 0;
var _corejs2BuiltIns = _interopRequireDefault(require("@babel/compat-data/corejs2-built-ins"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const define = (name, pure, global = [], meta) => {
return {
name,
pure,
global,
meta
};
};
const pureAndGlobal = (pure, global, minRuntimeVersion = null) => define(global[0], pure, global, {
minRuntimeVersion
});
const globalOnly = global => define(global[0], null, global);
const pureOnly = (pure, name) => define(name, pure, []);
const ArrayNatureIterators = ["es6.object.to-string", "es6.array.iterator", "web.dom.iterable"];
const CommonIterators = ["es6.string.iterator", ...ArrayNatureIterators];
exports.CommonIterators = CommonIterators;
const PromiseDependencies = ["es6.object.to-string", "es6.promise"];
const BuiltIns = {
DataView: globalOnly(["es6.typed.data-view"]),
Float32Array: globalOnly(["es6.typed.float32-array"]),
Float64Array: globalOnly(["es6.typed.float64-array"]),
Int8Array: globalOnly(["es6.typed.int8-array"]),
Int16Array: globalOnly(["es6.typed.int16-array"]),
Int32Array: globalOnly(["es6.typed.int32-array"]),
Map: pureAndGlobal("map", ["es6.map", ...CommonIterators]),
Number: globalOnly(["es6.number.constructor"]),
Promise: pureAndGlobal("promise", PromiseDependencies),
RegExp: globalOnly(["es6.regexp.constructor"]),
Set: pureAndGlobal("set", ["es6.set", ...CommonIterators]),
Symbol: pureAndGlobal("symbol/index", ["es6.symbol"]),
Uint8Array: globalOnly(["es6.typed.uint8-array"]),
Uint8ClampedArray: globalOnly(["es6.typed.uint8-clamped-array"]),
Uint16Array: globalOnly(["es6.typed.uint16-array"]),
Uint32Array: globalOnly(["es6.typed.uint32-array"]),
WeakMap: pureAndGlobal("weak-map", ["es6.weak-map", ...CommonIterators]),
WeakSet: pureAndGlobal("weak-set", ["es6.weak-set", ...CommonIterators]),
setImmediate: pureOnly("set-immediate", "web.immediate"),
clearImmediate: pureOnly("clear-immediate", "web.immediate"),
parseFloat: pureOnly("parse-float", "es6.parse-float"),
parseInt: pureOnly("parse-int", "es6.parse-int")
};
exports.BuiltIns = BuiltIns;
const InstanceProperties = {
__defineGetter__: globalOnly(["es7.object.define-getter"]),
__defineSetter__: globalOnly(["es7.object.define-setter"]),
__lookupGetter__: globalOnly(["es7.object.lookup-getter"]),
__lookupSetter__: globalOnly(["es7.object.lookup-setter"]),
anchor: globalOnly(["es6.string.anchor"]),
big: globalOnly(["es6.string.big"]),
bind: globalOnly(["es6.function.bind"]),
blink: globalOnly(["es6.string.blink"]),
bold: globalOnly(["es6.string.bold"]),
codePointAt: globalOnly(["es6.string.code-point-at"]),
copyWithin: globalOnly(["es6.array.copy-within"]),
endsWith: globalOnly(["es6.string.ends-with"]),
entries: globalOnly(ArrayNatureIterators),
every: globalOnly(["es6.array.every"]),
fill: globalOnly(["es6.array.fill"]),
filter: globalOnly(["es6.array.filter"]),
finally: globalOnly(["es7.promise.finally", ...PromiseDependencies]),
find: globalOnly(["es6.array.find"]),
findIndex: globalOnly(["es6.array.find-index"]),
fixed: globalOnly(["es6.string.fixed"]),
flags: globalOnly(["es6.regexp.flags"]),
flatMap: globalOnly(["es7.array.flat-map"]),
fontcolor: globalOnly(["es6.string.fontcolor"]),
fontsize: globalOnly(["es6.string.fontsize"]),
forEach: globalOnly(["es6.array.for-each"]),
includes: globalOnly(["es6.string.includes", "es7.array.includes"]),
indexOf: globalOnly(["es6.array.index-of"]),
italics: globalOnly(["es6.string.italics"]),
keys: globalOnly(ArrayNatureIterators),
lastIndexOf: globalOnly(["es6.array.last-index-of"]),
link: globalOnly(["es6.string.link"]),
map: globalOnly(["es6.array.map"]),
match: globalOnly(["es6.regexp.match"]),
name: globalOnly(["es6.function.name"]),
padStart: globalOnly(["es7.string.pad-start"]),
padEnd: globalOnly(["es7.string.pad-end"]),
reduce: globalOnly(["es6.array.reduce"]),
reduceRight: globalOnly(["es6.array.reduce-right"]),
repeat: globalOnly(["es6.string.repeat"]),
replace: globalOnly(["es6.regexp.replace"]),
search: globalOnly(["es6.regexp.search"]),
small: globalOnly(["es6.string.small"]),
some: globalOnly(["es6.array.some"]),
sort: globalOnly(["es6.array.sort"]),
split: globalOnly(["es6.regexp.split"]),
startsWith: globalOnly(["es6.string.starts-with"]),
strike: globalOnly(["es6.string.strike"]),
sub: globalOnly(["es6.string.sub"]),
sup: globalOnly(["es6.string.sup"]),
toISOString: globalOnly(["es6.date.to-iso-string"]),
toJSON: globalOnly(["es6.date.to-json"]),
toString: globalOnly(["es6.object.to-string", "es6.date.to-string", "es6.regexp.to-string"]),
trim: globalOnly(["es6.string.trim"]),
trimEnd: globalOnly(["es7.string.trim-right"]),
trimLeft: globalOnly(["es7.string.trim-left"]),
trimRight: globalOnly(["es7.string.trim-right"]),
trimStart: globalOnly(["es7.string.trim-left"]),
values: globalOnly(ArrayNatureIterators)
};
// This isn't present in older @babel/compat-data versions
exports.InstanceProperties = InstanceProperties;
if ("es6.array.slice" in _corejs2BuiltIns.default) {
InstanceProperties.slice = globalOnly(["es6.array.slice"]);
}
const StaticProperties = {
Array: {
from: pureAndGlobal("array/from", ["es6.symbol", "es6.array.from", ...CommonIterators]),
isArray: pureAndGlobal("array/is-array", ["es6.array.is-array"]),
of: pureAndGlobal("array/of", ["es6.array.of"])
},
Date: {
now: pureAndGlobal("date/now", ["es6.date.now"])
},
JSON: {
stringify: pureOnly("json/stringify", "es6.symbol")
},
Math: {
// 'Math' was not included in the 7.0.0
// release of '@babel/runtime'. See issue https://github.com/babel/babel/pull/8616.
acosh: pureAndGlobal("math/acosh", ["es6.math.acosh"], "7.0.1"),
asinh: pureAndGlobal("math/asinh", ["es6.math.asinh"], "7.0.1"),
atanh: pureAndGlobal("math/atanh", ["es6.math.atanh"], "7.0.1"),
cbrt: pureAndGlobal("math/cbrt", ["es6.math.cbrt"], "7.0.1"),
clz32: pureAndGlobal("math/clz32", ["es6.math.clz32"], "7.0.1"),
cosh: pureAndGlobal("math/cosh", ["es6.math.cosh"], "7.0.1"),
expm1: pureAndGlobal("math/expm1", ["es6.math.expm1"], "7.0.1"),
fround: pureAndGlobal("math/fround", ["es6.math.fround"], "7.0.1"),
hypot: pureAndGlobal("math/hypot", ["es6.math.hypot"], "7.0.1"),
imul: pureAndGlobal("math/imul", ["es6.math.imul"], "7.0.1"),
log1p: pureAndGlobal("math/log1p", ["es6.math.log1p"], "7.0.1"),
log10: pureAndGlobal("math/log10", ["es6.math.log10"], "7.0.1"),
log2: pureAndGlobal("math/log2", ["es6.math.log2"], "7.0.1"),
sign: pureAndGlobal("math/sign", ["es6.math.sign"], "7.0.1"),
sinh: pureAndGlobal("math/sinh", ["es6.math.sinh"], "7.0.1"),
tanh: pureAndGlobal("math/tanh", ["es6.math.tanh"], "7.0.1"),
trunc: pureAndGlobal("math/trunc", ["es6.math.trunc"], "7.0.1")
},
Number: {
EPSILON: pureAndGlobal("number/epsilon", ["es6.number.epsilon"]),
MIN_SAFE_INTEGER: pureAndGlobal("number/min-safe-integer", ["es6.number.min-safe-integer"]),
MAX_SAFE_INTEGER: pureAndGlobal("number/max-safe-integer", ["es6.number.max-safe-integer"]),
isFinite: pureAndGlobal("number/is-finite", ["es6.number.is-finite"]),
isInteger: pureAndGlobal("number/is-integer", ["es6.number.is-integer"]),
isSafeInteger: pureAndGlobal("number/is-safe-integer", ["es6.number.is-safe-integer"]),
isNaN: pureAndGlobal("number/is-nan", ["es6.number.is-nan"]),
parseFloat: pureAndGlobal("number/parse-float", ["es6.number.parse-float"]),
parseInt: pureAndGlobal("number/parse-int", ["es6.number.parse-int"])
},
Object: {
assign: pureAndGlobal("object/assign", ["es6.object.assign"]),
create: pureAndGlobal("object/create", ["es6.object.create"]),
defineProperties: pureAndGlobal("object/define-properties", ["es6.object.define-properties"]),
defineProperty: pureAndGlobal("object/define-property", ["es6.object.define-property"]),
entries: pureAndGlobal("object/entries", ["es7.object.entries"]),
freeze: pureAndGlobal("object/freeze", ["es6.object.freeze"]),
getOwnPropertyDescriptor: pureAndGlobal("object/get-own-property-descriptor", ["es6.object.get-own-property-descriptor"]),
getOwnPropertyDescriptors: pureAndGlobal("object/get-own-property-descriptors", ["es7.object.get-own-property-descriptors"]),
getOwnPropertyNames: pureAndGlobal("object/get-own-property-names", ["es6.object.get-own-property-names"]),
getOwnPropertySymbols: pureAndGlobal("object/get-own-property-symbols", ["es6.symbol"]),
getPrototypeOf: pureAndGlobal("object/get-prototype-of", ["es6.object.get-prototype-of"]),
is: pureAndGlobal("object/is", ["es6.object.is"]),
isExtensible: pureAndGlobal("object/is-extensible", ["es6.object.is-extensible"]),
isFrozen: pureAndGlobal("object/is-frozen", ["es6.object.is-frozen"]),
isSealed: pureAndGlobal("object/is-sealed", ["es6.object.is-sealed"]),
keys: pureAndGlobal("object/keys", ["es6.object.keys"]),
preventExtensions: pureAndGlobal("object/prevent-extensions", ["es6.object.prevent-extensions"]),
seal: pureAndGlobal("object/seal", ["es6.object.seal"]),
setPrototypeOf: pureAndGlobal("object/set-prototype-of", ["es6.object.set-prototype-of"]),
values: pureAndGlobal("object/values", ["es7.object.values"])
},
Promise: {
all: globalOnly(CommonIterators),
race: globalOnly(CommonIterators)
},
Reflect: {
apply: pureAndGlobal("reflect/apply", ["es6.reflect.apply"]),
construct: pureAndGlobal("reflect/construct", ["es6.reflect.construct"]),
defineProperty: pureAndGlobal("reflect/define-property", ["es6.reflect.define-property"]),
deleteProperty: pureAndGlobal("reflect/delete-property", ["es6.reflect.delete-property"]),
get: pureAndGlobal("reflect/get", ["es6.reflect.get"]),
getOwnPropertyDescriptor: pureAndGlobal("reflect/get-own-property-descriptor", ["es6.reflect.get-own-property-descriptor"]),
getPrototypeOf: pureAndGlobal("reflect/get-prototype-of", ["es6.reflect.get-prototype-of"]),
has: pureAndGlobal("reflect/has", ["es6.reflect.has"]),
isExtensible: pureAndGlobal("reflect/is-extensible", ["es6.reflect.is-extensible"]),
ownKeys: pureAndGlobal("reflect/own-keys", ["es6.reflect.own-keys"]),
preventExtensions: pureAndGlobal("reflect/prevent-extensions", ["es6.reflect.prevent-extensions"]),
set: pureAndGlobal("reflect/set", ["es6.reflect.set"]),
setPrototypeOf: pureAndGlobal("reflect/set-prototype-of", ["es6.reflect.set-prototype-of"])
},
String: {
at: pureOnly("string/at", "es7.string.at"),
fromCodePoint: pureAndGlobal("string/from-code-point", ["es6.string.from-code-point"]),
raw: pureAndGlobal("string/raw", ["es6.string.raw"])
},
Symbol: {
// FIXME: Pure disabled to work around zloirock/core-js#262.
asyncIterator: globalOnly(["es6.symbol", "es7.symbol.async-iterator"]),
for: pureOnly("symbol/for", "es6.symbol"),
hasInstance: pureOnly("symbol/has-instance", "es6.symbol"),
isConcatSpreadable: pureOnly("symbol/is-concat-spreadable", "es6.symbol"),
iterator: define("es6.symbol", "symbol/iterator", CommonIterators),
keyFor: pureOnly("symbol/key-for", "es6.symbol"),
match: pureAndGlobal("symbol/match", ["es6.regexp.match"]),
replace: pureOnly("symbol/replace", "es6.symbol"),
search: pureOnly("symbol/search", "es6.symbol"),
species: pureOnly("symbol/species", "es6.symbol"),
split: pureOnly("symbol/split", "es6.symbol"),
toPrimitive: pureOnly("symbol/to-primitive", "es6.symbol"),
toStringTag: pureOnly("symbol/to-string-tag", "es6.symbol"),
unscopables: pureOnly("symbol/unscopables", "es6.symbol")
}
};
exports.StaticProperties = StaticProperties;

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"use strict";
exports.__esModule = true;
exports.hasMinVersion = hasMinVersion;
var _semver = _interopRequireDefault(require("semver"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function hasMinVersion(minVersion, runtimeVersion) {
// If the range is unavailable, we're running the script during Babel's
// build process, and we want to assume that all versions are satisfied so
// that the built output will include all definitions.
if (!runtimeVersion || !minVersion) return true;
runtimeVersion = String(runtimeVersion);
// semver.intersects() has some surprising behavior with comparing ranges
// with preprelease versions. We add '^' to ensure that we are always
// comparing ranges with ranges, which sidesteps this logic.
// For example:
//
// semver.intersects(`<7.0.1`, "7.0.0-beta.0") // false - surprising
// semver.intersects(`<7.0.1`, "^7.0.0-beta.0") // true - expected
//
// This is because the first falls back to
//
// semver.satisfies("7.0.0-beta.0", `<7.0.1`) // false - surprising
//
// and this fails because a prerelease version can only satisfy a range
// if it is a prerelease within the same major/minor/patch range.
//
// Note: If this is found to have issues, please also revist the logic in
// babel-core's availableHelper() API.
if (_semver.default.valid(runtimeVersion)) runtimeVersion = `^${runtimeVersion}`;
return !_semver.default.intersects(`<${minVersion}`, runtimeVersion) && !_semver.default.intersects(`>=8.0.0`, runtimeVersion);
}

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"use strict";
exports.__esModule = true;
exports.default = void 0;
var _corejs2BuiltIns = _interopRequireDefault(require("@babel/compat-data/corejs2-built-ins"));
var _builtInDefinitions = require("./built-in-definitions");
var _addPlatformSpecificPolyfills = _interopRequireDefault(require("./add-platform-specific-polyfills"));
var _helpers = require("./helpers");
var _helperDefinePolyfillProvider = _interopRequireDefault(require("@babel/helper-define-polyfill-provider"));
var _babel = _interopRequireWildcard(require("@babel/core"));
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const {
types: t
} = _babel.default || _babel;
const BABEL_RUNTIME = "@babel/runtime-corejs2";
const presetEnvCompat = "#__secret_key__@babel/preset-env__compatibility";
const runtimeCompat = "#__secret_key__@babel/runtime__compatibility";
const has = Function.call.bind(Object.hasOwnProperty);
var _default = (0, _helperDefinePolyfillProvider.default)(function (api, {
[presetEnvCompat]: {
entryInjectRegenerator = false,
noRuntimeName = false
} = {},
[runtimeCompat]: {
useBabelRuntime = false,
runtimeVersion = "",
ext = ".js"
} = {}
}) {
const resolve = api.createMetaResolver({
global: _builtInDefinitions.BuiltIns,
static: _builtInDefinitions.StaticProperties,
instance: _builtInDefinitions.InstanceProperties
});
const {
debug,
shouldInjectPolyfill,
method
} = api;
const polyfills = (0, _addPlatformSpecificPolyfills.default)(api.targets, method, _corejs2BuiltIns.default);
const coreJSBase = useBabelRuntime ? `${BABEL_RUNTIME}/core-js` : method === "usage-pure" ? "core-js/library/fn" : "core-js/modules";
function inject(name, utils) {
if (typeof name === "string") {
// Some polyfills aren't always available, for example
// web.dom.iterable when targeting node
if (has(polyfills, name) && shouldInjectPolyfill(name)) {
debug(name);
utils.injectGlobalImport(`${coreJSBase}/${name}.js`);
}
return;
}
name.forEach(name => inject(name, utils));
}
function maybeInjectPure(desc, hint, utils) {
let {
pure,
meta,
name
} = desc;
if (!pure || !shouldInjectPolyfill(name)) return;
if (runtimeVersion && meta && meta.minRuntimeVersion && !(0, _helpers.hasMinVersion)(meta && meta.minRuntimeVersion, runtimeVersion)) {
return;
}
// Unfortunately core-js and @babel/runtime-corejs2 don't have the same
// directory structure, so we need to special case this.
if (useBabelRuntime && pure === "symbol/index") pure = "symbol";
return utils.injectDefaultImport(`${coreJSBase}/${pure}${ext}`, hint);
}
return {
name: "corejs2",
runtimeName: noRuntimeName ? null : BABEL_RUNTIME,
polyfills,
entryGlobal(meta, utils, path) {
if (meta.kind === "import" && meta.source === "core-js") {
debug(null);
inject(Object.keys(polyfills), utils);
if (entryInjectRegenerator) {
utils.injectGlobalImport("regenerator-runtime/runtime.js");
}
path.remove();
}
},
usageGlobal(meta, utils) {
const resolved = resolve(meta);
if (!resolved) return;
let deps = resolved.desc.global;
if (resolved.kind !== "global" && "object" in meta && meta.object && meta.placement === "prototype") {
const low = meta.object.toLowerCase();
deps = deps.filter(m => m.includes(low));
}
inject(deps, utils);
},
usagePure(meta, utils, path) {
if (meta.kind === "in") {
if (meta.key === "Symbol.iterator") {
path.replaceWith(t.callExpression(utils.injectDefaultImport(`${coreJSBase}/is-iterable${ext}`, "isIterable"), [path.node.right] // meta.kind === "in" narrows this
));
}
return;
}
if (path.parentPath.isUnaryExpression({
operator: "delete"
})) return;
if (meta.kind === "property") {
// We can't compile destructuring.
if (!path.isMemberExpression()) return;
if (!path.isReferenced()) return;
if (meta.key === "Symbol.iterator" && shouldInjectPolyfill("es6.symbol") && path.parentPath.isCallExpression({
callee: path.node
}) && path.parentPath.node.arguments.length === 0) {
path.parentPath.replaceWith(t.callExpression(utils.injectDefaultImport(`${coreJSBase}/get-iterator${ext}`, "getIterator"), [path.node.object]));
path.skip();
return;
}
}
const resolved = resolve(meta);
if (!resolved) return;
const id = maybeInjectPure(resolved.desc, resolved.name, utils);
if (id) path.replaceWith(id);
},
visitor: method === "usage-global" && {
// yield*
YieldExpression(path) {
if (path.node.delegate) {
inject("web.dom.iterable", api.getUtils(path));
}
},
// for-of, [a, b] = c
"ForOfStatement|ArrayPattern"(path) {
_builtInDefinitions.CommonIterators.forEach(name => inject(name, api.getUtils(path)));
}
}
};
});
exports.default = _default;

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{
"name": "babel-plugin-polyfill-corejs2",
"version": "0.4.13",
"description": "A Babel plugin to inject imports to core-js@2 polyfills",
"repository": {
"type": "git",
"url": "https://github.com/babel/babel-polyfills.git",
"directory": "packages/babel-plugin-polyfill-corejs2"
},
"license": "MIT",
"publishConfig": {
"access": "public"
},
"main": "lib/index.js",
"exports": {
".": [
{
"import": "./esm/index.mjs",
"default": "./lib/index.js"
},
"./lib/index.js"
],
"./package.json": "./package.json"
},
"keywords": [
"babel-plugin"
],
"dependencies": {
"@babel/compat-data": "^7.22.6",
"@babel/helper-define-polyfill-provider": "^0.6.4",
"semver": "^6.3.1"
},
"devDependencies": {
"@babel/core": "^7.22.6",
"@babel/helper-plugin-test-runner": "^7.22.5",
"@babel/plugin-transform-for-of": "^7.22.5",
"@babel/plugin-transform-modules-commonjs": "^7.22.5"
},
"peerDependencies": {
"@babel/core": "^7.4.0 || ^8.0.0-0 <8.0.0"
},
"gitHead": "d87c29c909148920ad18690b63d450c561842298"
}