35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
'use strict';
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var $TypeError = require('es-errors/type');
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var CompletionRecord = require('es-abstract/2024/CompletionRecord');
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var IteratorClose = require('es-abstract/2024/IteratorClose');
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var ThrowCompletion = require('es-abstract/2024/ThrowCompletion');
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var IsArray = require('es-abstract/helpers/IsArray');
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var every = require('es-abstract/helpers/every');
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var isIteratorRecord = require('es-abstract/helpers/records/iterator-record');
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// https://tc39.es/proposal-joint-iteration/#sec-closeall
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module.exports = function IteratorCloseAll(iters, completion) {
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if (!IsArray(iters) || !every(iters, isIteratorRecord)) {
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throw new $TypeError('Assertion failed: `iters` must be a List of IteratorRecords');
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}
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if (!(completion instanceof CompletionRecord)) {
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throw new $TypeError('Assertion failed: `completion` must be a Completion Record');
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}
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for (var i = iters.length - 1; i >= 0; i -= 1) { // step 1
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try {
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IteratorClose(iters[i], completion); // step 1.a
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} catch (e) {
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// eslint-disable-next-line no-param-reassign
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completion = ThrowCompletion(e); // step 1.a
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}
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}
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return completion['?'](); // step 2
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};
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