46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
'use strict';
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var inspect = require('object-inspect');
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var $TypeError = require('es-errors/type');
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var Call = require('./Call');
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var Get = require('./Get');
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var GetIterator = require('./GetIterator');
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var IsCallable = require('./IsCallable');
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var IteratorClose = require('./IteratorClose');
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var IteratorStep = require('./IteratorStep');
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var IteratorValue = require('./IteratorValue');
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var ThrowCompletion = require('./ThrowCompletion');
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var Type = require('./Type');
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// https://262.ecma-international.org/10.0/#sec-add-entries-from-iterable
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module.exports = function AddEntriesFromIterable(target, iterable, adder) {
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if (!IsCallable(adder)) {
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throw new $TypeError('Assertion failed: `adder` is not callable');
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}
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if (iterable == null) {
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throw new $TypeError('Assertion failed: `iterable` is present, and not nullish');
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}
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var iteratorRecord = GetIterator(iterable);
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while (true) { // eslint-disable-line no-constant-condition
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var next = IteratorStep(iteratorRecord);
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if (!next) {
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return target;
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}
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var nextItem = IteratorValue(next);
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if (Type(nextItem) !== 'Object') {
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var error = ThrowCompletion(new $TypeError('iterator next must return an Object, got ' + inspect(nextItem)));
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return IteratorClose(iteratorRecord, error);
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}
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try {
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var k = Get(nextItem, '0');
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var v = Get(nextItem, '1');
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Call(adder, target, [k, v]);
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} catch (e) {
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return IteratorClose(iteratorRecord, ThrowCompletion(e));
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}
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}
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};
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