mirror of https://github.com/tc39/test262.git
38 lines
919 B
JavaScript
38 lines
919 B
JavaScript
// Copyright (C) 2015 the V8 project authors. 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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es6id: 23.3.1.1
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description: >
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Return IteratorClose(iter, status) if fail on adding value on constructing.
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info: >
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WeakMap ( [ iterable ] )
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...
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9. Repeat
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k. Let status be Call(adder, map, «k.[[value]], v.[[value]]»).
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l. If status is an abrupt completion, return IteratorClose(iter, status).
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---*/
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var count = 0;
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var iterable = {};
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iterable[Symbol.iterator] = function() {
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return {
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next: function() {
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return { value: [], done: false };
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},
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return: function() {
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count += 1;
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}
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};
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};
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WeakMap.prototype.set = function() { throw new Test262Error(); };
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assert.throws(Test262Error, function() {
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new WeakMap(iterable);
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});
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assert.sameValue(
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count, 1,
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'The iterator is closed when `WeakMap.prototype.set` throws an error.'
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);
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