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39 lines
1.1 KiB
39 lines
1.1 KiB
'use strict'; |
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var callBound = require('call-bind/callBound'); |
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var $arrayPush = callBound('Array.prototype.push'); |
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var getIteratorMethod = require('../helpers/getIteratorMethod'); |
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var AdvanceStringIndex = require('./AdvanceStringIndex'); |
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var GetIterator = require('./GetIterator'); |
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var GetMethod = require('./GetMethod'); |
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var IsArray = require('./IsArray'); |
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var IteratorStep = require('./IteratorStep'); |
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var IteratorValue = require('./IteratorValue'); |
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var ToObject = require('./ToObject'); |
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var ES = { |
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AdvanceStringIndex: AdvanceStringIndex, |
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GetMethod: GetMethod, |
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IsArray: IsArray |
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}; |
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// https://262.ecma-international.org/7.0/#sec-iterabletoarraylike |
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module.exports = function IterableToArrayLike(items) { |
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var usingIterator = getIteratorMethod(ES, items); |
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if (typeof usingIterator !== 'undefined') { |
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var iterator = GetIterator(items, usingIterator); |
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var values = []; |
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var next = true; |
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while (next) { |
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next = IteratorStep(iterator); |
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if (next) { |
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var nextValue = IteratorValue(next); |
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$arrayPush(values, nextValue); |
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} |
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} |
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return values; |
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} |
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return ToObject(items); |
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};
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