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37 lines
853 B
JavaScript
37 lines
853 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: 23.1.1.1
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description: >
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The iterator is closed when `Map.prototype.set` throws an error.
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info: >
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Map ( [ iterable ] )
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...
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9. Repeat
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...
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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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features: [Symbol.iterator]
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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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Map.prototype.set = function() { throw new Test262Error(); }
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assert.throws(Test262Error, function() {
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new Map(iterable);
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});
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assert.sameValue(count, 1);
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