| 1 | 'use strict';
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| 2 | var global = require('../internals/global');
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| 3 | var shared = require('../internals/shared');
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| 4 | var hasOwn = require('../internals/has-own-property');
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| 5 | var uid = require('../internals/uid');
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| 6 | var NATIVE_SYMBOL = require('../internals/symbol-constructor-detection');
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| 7 | var USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');
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| 8 |
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| 9 | var Symbol = global.Symbol;
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| 10 | var WellKnownSymbolsStore = shared('wks');
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| 11 | var createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol['for'] || Symbol : Symbol && Symbol.withoutSetter || uid;
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| 12 |
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| 13 | module.exports = function (name) {
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| 14 | if (!hasOwn(WellKnownSymbolsStore, name)) {
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| 15 | WellKnownSymbolsStore[name] = NATIVE_SYMBOL && hasOwn(Symbol, name)
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| 16 | ? Symbol[name]
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| 17 | : createWellKnownSymbol('Symbol.' + name);
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| 18 | } return WellKnownSymbolsStore[name];
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| 19 | };
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