TanTan
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40 lines
864 B
Plaintext
40 lines
864 B
Plaintext
'use strict';
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var implementation = require('./implementation');
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var supportsDescriptors = require('define-properties').supportsDescriptors;
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var $gOPD = Object.getOwnPropertyDescriptor;
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module.exports = function getPolyfill() {
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if (supportsDescriptors && (/a/mig).flags === 'gim') {
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var descriptor = $gOPD(RegExp.prototype, 'flags');
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if (
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descriptor
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&& typeof descriptor.get === 'function'
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&& 'dotAll' in RegExp.prototype
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&& 'hasIndices' in RegExp.prototype
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) {
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/* eslint getter-return: 0 */
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var calls = '';
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var o = {};
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Object.defineProperty(o, 'hasIndices', {
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get: function () {
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calls += 'd';
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}
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});
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Object.defineProperty(o, 'sticky', {
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get: function () {
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calls += 'y';
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}
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});
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descriptor.get.call(o);
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if (calls === 'dy') {
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return descriptor.get;
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}
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}
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}
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return implementation;
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};
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