| 1 | 'use strict';
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| 2 | var getBuiltIn = require('../internals/get-built-in');
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| 3 | var definePropertyModule = require('../internals/object-define-property');
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| 4 | var wellKnownSymbol = require('../internals/well-known-symbol');
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| 5 | var DESCRIPTORS = require('../internals/descriptors');
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| 6 |
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| 7 | var SPECIES = wellKnownSymbol('species');
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| 8 |
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| 9 | module.exports = function (CONSTRUCTOR_NAME) {
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| 10 | var Constructor = getBuiltIn(CONSTRUCTOR_NAME);
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| 11 | var defineProperty = definePropertyModule.f;
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| 12 |
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| 13 | if (DESCRIPTORS && Constructor && !Constructor[SPECIES]) {
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| 14 | defineProperty(Constructor, SPECIES, {
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| 15 | configurable: true,
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| 16 | get: function () { return this; }
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| 17 | });
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| 18 | }
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| 19 | };
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