+++ /dev/null
-'use strict';
-var $ = require('../internals/export');
-var global = require('../internals/global');
-var getBuiltIn = require('../internals/get-built-in');
-var IS_PURE = require('../internals/is-pure');
-var DESCRIPTORS = require('../internals/descriptors');
-var NATIVE_SYMBOL = require('../internals/native-symbol');
-var USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');
-var fails = require('../internals/fails');
-var has = require('../internals/has');
-var isArray = require('../internals/is-array');
-var isObject = require('../internals/is-object');
-var anObject = require('../internals/an-object');
-var toObject = require('../internals/to-object');
-var toIndexedObject = require('../internals/to-indexed-object');
-var toPrimitive = require('../internals/to-primitive');
-var createPropertyDescriptor = require('../internals/create-property-descriptor');
-var nativeObjectCreate = require('../internals/object-create');
-var objectKeys = require('../internals/object-keys');
-var getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');
-var getOwnPropertyNamesExternal = require('../internals/object-get-own-property-names-external');
-var getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');
-var getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');
-var definePropertyModule = require('../internals/object-define-property');
-var propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');
-var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
-var redefine = require('../internals/redefine');
-var shared = require('../internals/shared');
-var sharedKey = require('../internals/shared-key');
-var hiddenKeys = require('../internals/hidden-keys');
-var uid = require('../internals/uid');
-var wellKnownSymbol = require('../internals/well-known-symbol');
-var wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');
-var defineWellKnownSymbol = require('../internals/define-well-known-symbol');
-var setToStringTag = require('../internals/set-to-string-tag');
-var InternalStateModule = require('../internals/internal-state');
-var $forEach = require('../internals/array-iteration').forEach;
-
-var HIDDEN = sharedKey('hidden');
-var SYMBOL = 'Symbol';
-var PROTOTYPE = 'prototype';
-var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');
-var setInternalState = InternalStateModule.set;
-var getInternalState = InternalStateModule.getterFor(SYMBOL);
-var ObjectPrototype = Object[PROTOTYPE];
-var $Symbol = global.Symbol;
-var $stringify = getBuiltIn('JSON', 'stringify');
-var nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
-var nativeDefineProperty = definePropertyModule.f;
-var nativeGetOwnPropertyNames = getOwnPropertyNamesExternal.f;
-var nativePropertyIsEnumerable = propertyIsEnumerableModule.f;
-var AllSymbols = shared('symbols');
-var ObjectPrototypeSymbols = shared('op-symbols');
-var StringToSymbolRegistry = shared('string-to-symbol-registry');
-var SymbolToStringRegistry = shared('symbol-to-string-registry');
-var WellKnownSymbolsStore = shared('wks');
-var QObject = global.QObject;
-// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
-var USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
-
-// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
-var setSymbolDescriptor = DESCRIPTORS && fails(function () {
- return nativeObjectCreate(nativeDefineProperty({}, 'a', {
- get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }
- })).a != 7;
-}) ? function (O, P, Attributes) {
- var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor(ObjectPrototype, P);
- if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];
- nativeDefineProperty(O, P, Attributes);
- if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {
- nativeDefineProperty(ObjectPrototype, P, ObjectPrototypeDescriptor);
- }
-} : nativeDefineProperty;
-
-var wrap = function (tag, description) {
- var symbol = AllSymbols[tag] = nativeObjectCreate($Symbol[PROTOTYPE]);
- setInternalState(symbol, {
- type: SYMBOL,
- tag: tag,
- description: description
- });
- if (!DESCRIPTORS) symbol.description = description;
- return symbol;
-};
-
-var isSymbol = USE_SYMBOL_AS_UID ? function (it) {
- return typeof it == 'symbol';
-} : function (it) {
- return Object(it) instanceof $Symbol;
-};
-
-var $defineProperty = function defineProperty(O, P, Attributes) {
- if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);
- anObject(O);
- var key = toPrimitive(P, true);
- anObject(Attributes);
- if (has(AllSymbols, key)) {
- if (!Attributes.enumerable) {
- if (!has(O, HIDDEN)) nativeDefineProperty(O, HIDDEN, createPropertyDescriptor(1, {}));
- O[HIDDEN][key] = true;
- } else {
- if (has(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;
- Attributes = nativeObjectCreate(Attributes, { enumerable: createPropertyDescriptor(0, false) });
- } return setSymbolDescriptor(O, key, Attributes);
- } return nativeDefineProperty(O, key, Attributes);
-};
-
-var $defineProperties = function defineProperties(O, Properties) {
- anObject(O);
- var properties = toIndexedObject(Properties);
- var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));
- $forEach(keys, function (key) {
- if (!DESCRIPTORS || $propertyIsEnumerable.call(properties, key)) $defineProperty(O, key, properties[key]);
- });
- return O;
-};
-
-var $create = function create(O, Properties) {
- return Properties === undefined ? nativeObjectCreate(O) : $defineProperties(nativeObjectCreate(O), Properties);
-};
-
-var $propertyIsEnumerable = function propertyIsEnumerable(V) {
- var P = toPrimitive(V, true);
- var enumerable = nativePropertyIsEnumerable.call(this, P);
- if (this === ObjectPrototype && has(AllSymbols, P) && !has(ObjectPrototypeSymbols, P)) return false;
- return enumerable || !has(this, P) || !has(AllSymbols, P) || has(this, HIDDEN) && this[HIDDEN][P] ? enumerable : true;
-};
-
-var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {
- var it = toIndexedObject(O);
- var key = toPrimitive(P, true);
- if (it === ObjectPrototype && has(AllSymbols, key) && !has(ObjectPrototypeSymbols, key)) return;
- var descriptor = nativeGetOwnPropertyDescriptor(it, key);
- if (descriptor && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) {
- descriptor.enumerable = true;
- }
- return descriptor;
-};
-
-var $getOwnPropertyNames = function getOwnPropertyNames(O) {
- var names = nativeGetOwnPropertyNames(toIndexedObject(O));
- var result = [];
- $forEach(names, function (key) {
- if (!has(AllSymbols, key) && !has(hiddenKeys, key)) result.push(key);
- });
- return result;
-};
-
-var $getOwnPropertySymbols = function getOwnPropertySymbols(O) {
- var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;
- var names = nativeGetOwnPropertyNames(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));
- var result = [];
- $forEach(names, function (key) {
- if (has(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has(ObjectPrototype, key))) {
- result.push(AllSymbols[key]);
- }
- });
- return result;
-};
-
-// `Symbol` constructor
-// https://tc39.github.io/ecma262/#sec-symbol-constructor
-if (!NATIVE_SYMBOL) {
- $Symbol = function Symbol() {
- if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');
- var description = !arguments.length || arguments[0] === undefined ? undefined : String(arguments[0]);
- var tag = uid(description);
- var setter = function (value) {
- if (this === ObjectPrototype) setter.call(ObjectPrototypeSymbols, value);
- if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
- setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));
- };
- if (DESCRIPTORS && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });
- return wrap(tag, description);
- };
-
- redefine($Symbol[PROTOTYPE], 'toString', function toString() {
- return getInternalState(this).tag;
- });
-
- redefine($Symbol, 'withoutSetter', function (description) {
- return wrap(uid(description), description);
- });
-
- propertyIsEnumerableModule.f = $propertyIsEnumerable;
- definePropertyModule.f = $defineProperty;
- getOwnPropertyDescriptorModule.f = $getOwnPropertyDescriptor;
- getOwnPropertyNamesModule.f = getOwnPropertyNamesExternal.f = $getOwnPropertyNames;
- getOwnPropertySymbolsModule.f = $getOwnPropertySymbols;
-
- wrappedWellKnownSymbolModule.f = function (name) {
- return wrap(wellKnownSymbol(name), name);
- };
-
- if (DESCRIPTORS) {
- // https://github.com/tc39/proposal-Symbol-description
- nativeDefineProperty($Symbol[PROTOTYPE], 'description', {
- configurable: true,
- get: function description() {
- return getInternalState(this).description;
- }
- });
- if (!IS_PURE) {
- redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });
- }
- }
-}
-
-$({ global: true, wrap: true, forced: !NATIVE_SYMBOL, sham: !NATIVE_SYMBOL }, {
- Symbol: $Symbol
-});
-
-$forEach(objectKeys(WellKnownSymbolsStore), function (name) {
- defineWellKnownSymbol(name);
-});
-
-$({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {
- // `Symbol.for` method
- // https://tc39.github.io/ecma262/#sec-symbol.for
- 'for': function (key) {
- var string = String(key);
- if (has(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
- var symbol = $Symbol(string);
- StringToSymbolRegistry[string] = symbol;
- SymbolToStringRegistry[symbol] = string;
- return symbol;
- },
- // `Symbol.keyFor` method
- // https://tc39.github.io/ecma262/#sec-symbol.keyfor
- keyFor: function keyFor(sym) {
- if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');
- if (has(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
- },
- useSetter: function () { USE_SETTER = true; },
- useSimple: function () { USE_SETTER = false; }
-});
-
-$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL, sham: !DESCRIPTORS }, {
- // `Object.create` method
- // https://tc39.github.io/ecma262/#sec-object.create
- create: $create,
- // `Object.defineProperty` method
- // https://tc39.github.io/ecma262/#sec-object.defineproperty
- defineProperty: $defineProperty,
- // `Object.defineProperties` method
- // https://tc39.github.io/ecma262/#sec-object.defineproperties
- defineProperties: $defineProperties,
- // `Object.getOwnPropertyDescriptor` method
- // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors
- getOwnPropertyDescriptor: $getOwnPropertyDescriptor
-});
-
-$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL }, {
- // `Object.getOwnPropertyNames` method
- // https://tc39.github.io/ecma262/#sec-object.getownpropertynames
- getOwnPropertyNames: $getOwnPropertyNames,
- // `Object.getOwnPropertySymbols` method
- // https://tc39.github.io/ecma262/#sec-object.getownpropertysymbols
- getOwnPropertySymbols: $getOwnPropertySymbols
-});
-
-// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
-// https://bugs.chromium.org/p/v8/issues/detail?id=3443
-$({ target: 'Object', stat: true, forced: fails(function () { getOwnPropertySymbolsModule.f(1); }) }, {
- getOwnPropertySymbols: function getOwnPropertySymbols(it) {
- return getOwnPropertySymbolsModule.f(toObject(it));
- }
-});
-
-// `JSON.stringify` method behavior with symbols
-// https://tc39.github.io/ecma262/#sec-json.stringify
-if ($stringify) {
- var FORCED_JSON_STRINGIFY = !NATIVE_SYMBOL || fails(function () {
- var symbol = $Symbol();
- // MS Edge converts symbol values to JSON as {}
- return $stringify([symbol]) != '[null]'
- // WebKit converts symbol values to JSON as null
- || $stringify({ a: symbol }) != '{}'
- // V8 throws on boxed symbols
- || $stringify(Object(symbol)) != '{}';
- });
-
- $({ target: 'JSON', stat: true, forced: FORCED_JSON_STRINGIFY }, {
- // eslint-disable-next-line no-unused-vars
- stringify: function stringify(it, replacer, space) {
- var args = [it];
- var index = 1;
- var $replacer;
- while (arguments.length > index) args.push(arguments[index++]);
- $replacer = replacer;
- if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
- if (!isArray(replacer)) replacer = function (key, value) {
- if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
- if (!isSymbol(value)) return value;
- };
- args[1] = replacer;
- return $stringify.apply(null, args);
- }
- });
-}
-
-// `Symbol.prototype[@@toPrimitive]` method
-// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@toprimitive
-if (!$Symbol[PROTOTYPE][TO_PRIMITIVE]) {
- createNonEnumerableProperty($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
-}
-// `Symbol.prototype[@@toStringTag]` property
-// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@tostringtag
-setToStringTag($Symbol, SYMBOL);
-
-hiddenKeys[HIDDEN] = true;
projects / dotfiles / .git / blobdiff