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-rw-r--r--node_modules/core-js/library/modules/es6.symbol.js250
1 files changed, 121 insertions, 129 deletions
diff --git a/node_modules/core-js/library/modules/es6.symbol.js b/node_modules/core-js/library/modules/es6.symbol.js
index eae491c5a..42b7a3aaa 100644
--- a/node_modules/core-js/library/modules/es6.symbol.js
+++ b/node_modules/core-js/library/modules/es6.symbol.js
@@ -1,87 +1,77 @@
'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
+var $ = require('./$')
+ , global = require('./$.global')
+ , has = require('./$.has')
+ , DESCRIPTORS = require('./$.descriptors')
+ , $export = require('./$.export')
+ , redefine = require('./$.redefine')
+ , $fails = require('./$.fails')
+ , shared = require('./$.shared')
+ , setToStringTag = require('./$.set-to-string-tag')
+ , uid = require('./$.uid')
+ , wks = require('./$.wks')
+ , keyOf = require('./$.keyof')
+ , $names = require('./$.get-names')
+ , enumKeys = require('./$.enum-keys')
+ , isArray = require('./$.is-array')
+ , anObject = require('./$.an-object')
+ , toIObject = require('./$.to-iobject')
+ , createDesc = require('./$.property-desc')
+ , getDesc = $.getDesc
+ , setDesc = $.setDesc
+ , _create = $.create
+ , getNames = $names.get
, $Symbol = global.Symbol
, $JSON = global.JSON
, _stringify = $JSON && $JSON.stringify
- , PROTOTYPE = 'prototype'
+ , setter = false
, HIDDEN = wks('_hidden')
- , TO_PRIMITIVE = wks('toPrimitive')
- , isEnum = {}.propertyIsEnumerable
+ , isEnum = $.isEnum
, 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;
+ , useNative = typeof $Symbol == 'function'
+ , ObjectProto = Object.prototype;
// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
var setSymbolDesc = DESCRIPTORS && $fails(function(){
- return _create(dP({}, 'a', {
- get: function(){ return dP(this, 'a', {value: 7}).a; }
+ return _create(setDesc({}, 'a', {
+ get: function(){ return setDesc(this, 'a', {value: 7}).a; }
})).a != 7;
}) ? function(it, key, D){
- var protoDesc = gOPD(ObjectProto, key);
+ var protoDesc = getDesc(ObjectProto, key);
if(protoDesc)delete ObjectProto[key];
- dP(it, key, D);
- if(protoDesc && it !== ObjectProto)dP(ObjectProto, key, protoDesc);
-} : dP;
+ setDesc(it, key, D);
+ if(protoDesc && it !== ObjectProto)setDesc(ObjectProto, key, protoDesc);
+} : setDesc;
var wrap = function(tag){
- var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
+ var sym = AllSymbols[tag] = _create($Symbol.prototype);
sym._k = tag;
+ DESCRIPTORS && setter && setSymbolDesc(ObjectProto, tag, {
+ configurable: true,
+ set: function(value){
+ if(has(this, HIDDEN) && has(this[HIDDEN], tag))this[HIDDEN][tag] = false;
+ setSymbolDesc(this, tag, createDesc(1, value));
+ }
+ });
return sym;
};
-var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function(it){
+var isSymbol = 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 && has(AllSymbols, key)){
if(!D.enumerable){
- if(!has(it, HIDDEN))dP(it, HIDDEN, createDesc(1, {}));
+ if(!has(it, HIDDEN))setDesc(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);
+ } return setDesc(it, key, D);
};
var $defineProperties = function defineProperties(it, P){
anObject(it);
@@ -96,80 +86,83 @@ 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 E = isEnum.call(this, key);
+ 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);
+ var D = getDesc(it = toIObject(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))
+ var names = getNames(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;
+ while(names.length > i)if(!has(AllSymbols, key = names[i++]) && key != HIDDEN)result.push(key);
+ return result;
};
var $getOwnPropertySymbols = function getOwnPropertySymbols(it){
- var IS_OP = it === ObjectProto
- , names = gOPN(IS_OP ? OPSymbols : toIObject(it))
+ var names = getNames(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;
+ while(names.length > i)if(has(AllSymbols, key = names[i++]))result.push(AllSymbols[key]);
+ return result;
};
+var $stringify = function stringify(it){
+ if(it === undefined || isSymbol(it))return; // IE8 returns string on undefined
+ var args = [it]
+ , i = 1
+ , $$ = arguments
+ , replacer, $replacer;
+ while($$.length > i)args.push($$[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);
+};
+var buggyJSON = $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)) != '{}';
+});
// 19.4.1.1 Symbol([description])
-if(!USE_NATIVE){
+if(!useNative){
$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: $set});
- return wrap(tag);
+ if(isSymbol(this))throw TypeError('Symbol is not a constructor');
+ return wrap(uid(arguments.length > 0 ? arguments[0] : undefined));
};
- redefine($Symbol[PROTOTYPE], 'toString', function toString(){
+ 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;
+ isSymbol = function(it){
+ return it instanceof $Symbol;
+ };
- if(DESCRIPTORS && !require('./_library')){
- redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
- }
+ $.create = $create;
+ $.isEnum = $propertyIsEnumerable;
+ $.getDesc = $getOwnPropertyDescriptor;
+ $.setDesc = $defineProperty;
+ $.setDescs = $defineProperties;
+ $.getNames = $names.get = $getOwnPropertyNames;
+ $.getSymbols = $getOwnPropertySymbols;
- wksExt.f = function(name){
- return wrap(wks(name));
+ if(DESCRIPTORS && !require('./$.library')){
+ redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
}
}
-$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', {
+var symbolStatics = {
// 19.4.2.1 Symbol.for(key)
'for': function(key){
return has(SymbolRegistry, key += '')
@@ -178,14 +171,37 @@ $export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
},
// 19.4.2.5 Symbol.keyFor(sym)
keyFor: function keyFor(key){
- if(isSymbol(key))return keyOf(SymbolRegistry, key);
- throw TypeError(key + ' is not a symbol!');
+ return keyOf(SymbolRegistry, key);
},
useSetter: function(){ setter = true; },
useSimple: function(){ setter = false; }
+};
+// 19.4.2.2 Symbol.hasInstance
+// 19.4.2.3 Symbol.isConcatSpreadable
+// 19.4.2.4 Symbol.iterator
+// 19.4.2.6 Symbol.match
+// 19.4.2.8 Symbol.replace
+// 19.4.2.9 Symbol.search
+// 19.4.2.10 Symbol.species
+// 19.4.2.11 Symbol.split
+// 19.4.2.12 Symbol.toPrimitive
+// 19.4.2.13 Symbol.toStringTag
+// 19.4.2.14 Symbol.unscopables
+$.each.call((
+ 'hasInstance,isConcatSpreadable,iterator,match,replace,search,' +
+ 'species,split,toPrimitive,toStringTag,unscopables'
+).split(','), function(it){
+ var sym = wks(it);
+ symbolStatics[it] = useNative ? sym : wrap(sym);
});
-$export($export.S + $export.F * !USE_NATIVE, 'Object', {
+setter = true;
+
+$export($export.G + $export.W, {Symbol: $Symbol});
+
+$export($export.S, 'Symbol', symbolStatics);
+
+$export($export.S + $export.F * !useNative, 'Object', {
// 19.1.2.2 Object.create(O [, Properties])
create: $create,
// 19.1.2.4 Object.defineProperty(O, P, Attributes)
@@ -201,32 +217,8 @@ $export($export.S + $export.F * !USE_NATIVE, 'Object', {
});
// 24.3.2 JSON.stringify(value [, replacer [, space]])
-$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);
- }
-});
+$JSON && $export($export.S + $export.F * (!useNative || buggyJSON), 'JSON', {stringify: $stringify});
-// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
-$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]
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-15 17:40:47 +0000