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53 lines
1.2 KiB
JavaScript
53 lines
1.2 KiB
JavaScript
// Copyright (C) 2018 Kevin Gibbons. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-object.fromentries
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description: Does not close iterators with a `next` method which throws.
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info: |
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Object.fromEntries ( iterable )
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...
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4. Let stepsDefine be the algorithm steps defined in CreateDataPropertyOnObject Functions.
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5. Let adder be CreateBuiltinFunction(stepsDefine, « »).
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6. Return ? AddEntriesFromIterable(obj, iterable, adder).
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AddEntriesFromIterable ( target, iterable, adder )
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...
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4. Repeat,
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a. Let next be ? IteratorStep(iteratorRecord).
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IteratorStep ( iteratorRecord )
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1. Let result be ? IteratorNext(iteratorRecord).
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IteratorNext ( iteratorRecord [ , value ] )
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...
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3. If Type(result) is not Object, throw a TypeError exception.
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features: [Symbol.iterator, Object.fromEntries]
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---*/
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function DummyError() {}
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var iterable = {
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[Symbol.iterator]: function() {
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return {
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next: function() {
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throw new DummyError();
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},
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return: function() {
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throw new Test262Error('should not call return');
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},
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};
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},
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};
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assert.throws(DummyError, function() {
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Object.fromEntries(iterable);
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});
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