--- /dev/null
+'use strict';
+// ECMAScript 6 symbols shim
+var global = require('./_global')
+ , has = require('./_has')
+ , DESCRIPTORS = require('./_descriptors')
+ , $export = require('./_export')
+ , redefine = require('./_redefine')
+ , META = require('./_meta').KEY
+ , $fails = require('./_fails')
+ , shared = require('./_shared')
+ , setToStringTag = require('./_set-to-string-tag')
+ , uid = require('./_uid')
+ , wks = require('./_wks')
+ , wksExt = require('./_wks-ext')
+ , wksDefine = require('./_wks-define')
+ , keyOf = require('./_keyof')
+ , enumKeys = require('./_enum-keys')
+ , isArray = require('./_is-array')
+ , anObject = require('./_an-object')
+ , toIObject = require('./_to-iobject')
+ , toPrimitive = require('./_to-primitive')
+ , createDesc = require('./_property-desc')
+ , _create = require('./_object-create')
+ , gOPNExt = require('./_object-gopn-ext')
+ , $GOPD = require('./_object-gopd')
+ , $DP = require('./_object-dp')
+ , $keys = require('./_object-keys')
+ , gOPD = $GOPD.f
+ , dP = $DP.f
+ , gOPN = gOPNExt.f
+ , $Symbol = global.Symbol
+ , $JSON = global.JSON
+ , _stringify = $JSON && $JSON.stringify
+ , PROTOTYPE = 'prototype'
+ , HIDDEN = wks('_hidden')
+ , TO_PRIMITIVE = wks('toPrimitive')
+ , isEnum = {}.propertyIsEnumerable
+ , SymbolRegistry = shared('symbol-registry')
+ , AllSymbols = shared('symbols')
+ , OPSymbols = shared('op-symbols')
+ , ObjectProto = Object[PROTOTYPE]
+ , USE_NATIVE = typeof $Symbol == 'function'
+ , QObject = global.QObject;
+// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
+var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
+
+// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
+var setSymbolDesc = DESCRIPTORS && $fails(function(){
+ return _create(dP({}, 'a', {
+ get: function(){ return dP(this, 'a', {value: 7}).a; }
+ })).a != 7;
+}) ? function(it, key, D){
+ var protoDesc = gOPD(ObjectProto, key);
+ if(protoDesc)delete ObjectProto[key];
+ dP(it, key, D);
+ if(protoDesc && it !== ObjectProto)dP(ObjectProto, key, protoDesc);
+} : dP;
+
+var wrap = function(tag){
+ var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
+ sym._k = tag;
+ return sym;
+};
+
+var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function(it){
+ return typeof it == 'symbol';
+} : function(it){
+ return it instanceof $Symbol;
+};
+
+var $defineProperty = function defineProperty(it, key, D){
+ if(it === ObjectProto)$defineProperty(OPSymbols, key, D);
+ anObject(it);
+ key = toPrimitive(key, true);
+ anObject(D);
+ if(has(AllSymbols, key)){
+ if(!D.enumerable){
+ if(!has(it, HIDDEN))dP(it, HIDDEN, createDesc(1, {}));
+ it[HIDDEN][key] = true;
+ } else {
+ if(has(it, HIDDEN) && it[HIDDEN][key])it[HIDDEN][key] = false;
+ D = _create(D, {enumerable: createDesc(0, false)});
+ } return setSymbolDesc(it, key, D);
+ } return dP(it, key, D);
+};
+var $defineProperties = function defineProperties(it, P){
+ anObject(it);
+ var keys = enumKeys(P = toIObject(P))
+ , i = 0
+ , l = keys.length
+ , key;
+ while(l > i)$defineProperty(it, key = keys[i++], P[key]);
+ return it;
+};
+var $create = function create(it, P){
+ return P === undefined ? _create(it) : $defineProperties(_create(it), P);
+};
+var $propertyIsEnumerable = function propertyIsEnumerable(key){
+ var E = isEnum.call(this, key = toPrimitive(key, true));
+ if(this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key))return false;
+ return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
+};
+var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key){
+ it = toIObject(it);
+ key = toPrimitive(key, true);
+ if(it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key))return;
+ var D = gOPD(it, key);
+ if(D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key]))D.enumerable = true;
+ return D;
+};
+var $getOwnPropertyNames = function getOwnPropertyNames(it){
+ var names = gOPN(toIObject(it))
+ , result = []
+ , i = 0
+ , key;
+ while(names.length > i){
+ if(!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META)result.push(key);
+ } return result;
+};
+var $getOwnPropertySymbols = function getOwnPropertySymbols(it){
+ var IS_OP = it === ObjectProto
+ , names = gOPN(IS_OP ? OPSymbols : toIObject(it))
+ , result = []
+ , i = 0
+ , key;
+ while(names.length > i){
+ if(has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true))result.push(AllSymbols[key]);
+ } return result;
+};
+
+// 19.4.1.1 Symbol([description])
+if(!USE_NATIVE){
+ $Symbol = function Symbol(){
+ if(this instanceof $Symbol)throw TypeError('Symbol is not a constructor!');
+ var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
+ var $set = function(value){
+ if(this === ObjectProto)$set.call(OPSymbols, value);
+ if(has(this, HIDDEN) && has(this[HIDDEN], tag))this[HIDDEN][tag] = false;
+ setSymbolDesc(this, tag, createDesc(1, value));
+ };
+ if(DESCRIPTORS && setter)setSymbolDesc(ObjectProto, tag, {configurable: true, set: $set});
+ return wrap(tag);
+ };
+ redefine($Symbol[PROTOTYPE], 'toString', function toString(){
+ return this._k;
+ });
+
+ $GOPD.f = $getOwnPropertyDescriptor;
+ $DP.f = $defineProperty;
+ require('./_object-gopn').f = gOPNExt.f = $getOwnPropertyNames;
+ require('./_object-pie').f = $propertyIsEnumerable;
+ require('./_object-gops').f = $getOwnPropertySymbols;
+
+ if(DESCRIPTORS && !require('./_library')){
+ redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
+ }
+
+ wksExt.f = function(name){
+ return wrap(wks(name));
+ }
+}
+
+$export($export.G + $export.W + $export.F * !USE_NATIVE, {Symbol: $Symbol});
+
+for(var symbols = (
+ // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
+ 'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'
+).split(','), i = 0; symbols.length > i; )wks(symbols[i++]);
+
+for(var symbols = $keys(wks.store), i = 0; symbols.length > i; )wksDefine(symbols[i++]);
+
+$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
+ // 19.4.2.1 Symbol.for(key)
+ 'for': function(key){
+ return has(SymbolRegistry, key += '')
+ ? SymbolRegistry[key]
+ : SymbolRegistry[key] = $Symbol(key);
+ },
+ // 19.4.2.5 Symbol.keyFor(sym)
+ keyFor: function keyFor(key){
+ if(isSymbol(key))return keyOf(SymbolRegistry, key);
+ throw TypeError(key + ' is not a symbol!');
+ },
+ useSetter: function(){ setter = true; },
+ useSimple: function(){ setter = false; }
+});
+
+$export($export.S + $export.F * !USE_NATIVE, 'Object', {
+ // 19.1.2.2 Object.create(O [, Properties])
+ create: $create,
+ // 19.1.2.4 Object.defineProperty(O, P, Attributes)
+ defineProperty: $defineProperty,
+ // 19.1.2.3 Object.defineProperties(O, Properties)
+ defineProperties: $defineProperties,
+ // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
+ getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
+ // 19.1.2.7 Object.getOwnPropertyNames(O)
+ getOwnPropertyNames: $getOwnPropertyNames,
+ // 19.1.2.8 Object.getOwnPropertySymbols(O)
+ getOwnPropertySymbols: $getOwnPropertySymbols
+});
+
+// 24.3.2 JSON.stringify(value [, replacer [, space]])
+$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function(){
+ var S = $Symbol();
+ // MS Edge converts symbol values to JSON as {}
+ // WebKit converts symbol values to JSON as null
+ // V8 throws on boxed symbols
+ return _stringify([S]) != '[null]' || _stringify({a: S}) != '{}' || _stringify(Object(S)) != '{}';
+})), 'JSON', {
+ stringify: function stringify(it){
+ if(it === undefined || isSymbol(it))return; // IE8 returns string on undefined
+ var args = [it]
+ , i = 1
+ , replacer, $replacer;
+ while(arguments.length > i)args.push(arguments[i++]);
+ replacer = args[1];
+ if(typeof replacer == 'function')$replacer = replacer;
+ if($replacer || !isArray(replacer))replacer = function(key, value){
+ if($replacer)value = $replacer.call(this, key, value);
+ if(!isSymbol(value))return value;
+ };
+ args[1] = replacer;
+ return _stringify.apply($JSON, args);
+ }
+});
+
+// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
+$Symbol[PROTOTYPE][TO_PRIMITIVE] || require('./_hide')($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
+// 19.4.3.5 Symbol.prototype[@@toStringTag]
+setToStringTag($Symbol, 'Symbol');
+// 20.2.1.9 Math[@@toStringTag]
+setToStringTag(Math, 'Math', true);
+// 24.3.3 JSON[@@toStringTag]
+setToStringTag(global.JSON, 'JSON', true);
\ No newline at end of file
projects / yaffs-website / blobdiff