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on this file was 0c6b92a, checked in by stefan toskovski <stefantoska84@…>, 5 weeks ago |
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1 | 'use strict';
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2 |
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3 | var $TypeError = require('es-errors/type');
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4 |
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5 | var CompletionRecord = require('es-abstract/2024/CompletionRecord');
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6 | var IteratorClose = require('es-abstract/2024/IteratorClose');
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7 | var ThrowCompletion = require('es-abstract/2024/ThrowCompletion');
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8 |
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9 | var IsArray = require('es-abstract/helpers/IsArray');
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10 | var every = require('es-abstract/helpers/every');
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11 |
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12 | var isIteratorRecord = require('es-abstract/helpers/records/iterator-record');
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13 |
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14 | // https://tc39.es/proposal-joint-iteration/#sec-closeall
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15 |
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16 | module.exports = function IteratorCloseAll(iters, completion) {
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17 | if (!IsArray(iters) || !every(iters, isIteratorRecord)) {
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18 | throw new $TypeError('Assertion failed: `iters` must be a List of IteratorRecords');
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19 | }
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20 | if (!(completion instanceof CompletionRecord)) {
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21 | throw new $TypeError('Assertion failed: `completion` must be a Completion Record');
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22 | }
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23 |
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24 | for (var i = iters.length - 1; i >= 0; i -= 1) { // step 1
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25 | try {
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26 | IteratorClose(iters[i], completion); // step 1.a
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27 | } catch (e) {
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28 | // eslint-disable-next-line no-param-reassign
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29 | completion = ThrowCompletion(e); // step 1.a
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30 | }
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31 | }
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32 |
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33 | return completion['?'](); // step 2
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34 | };
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