36 lines
628 B
JavaScript
36 lines
628 B
JavaScript
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// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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var iter = {}
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iter[Symbol.iterator] = () => ({
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next: () => ({}),
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return: () => {throw 666}
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});
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function* foo() {
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for (let x of iter) {throw 42}
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}
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assertThrowsEquals(() => foo().next(), 42);
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function* bar() {
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let x;
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{ let gaga = () => {x};
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[[x]] = iter;
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}
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}
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assertThrows(() => bar().next(), TypeError);
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function baz() {
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let x;
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{ let gaga = () => {x};
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let gugu = () => {gaga};
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[[x]] = iter;
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}
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}
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assertThrows(baz, TypeError);
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