6904a8120b
.. mostly mentions in mjsunit `Flags:` lines and in comments. Bug: v8:10386 Change-Id: If79dfdc448d0a3f19883ef1f816e77e750cb4061 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865964 Commit-Queue: Jakob Linke <jgruber@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/main@{#82852}
35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
// Copyright 2018 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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// Flags: --allow-natives-syntax
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// This tests the interaction between the MapIterator protector and SetIterator
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// protector.
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var map = new Map([[1,2], [2,3], [3,4]]);
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assertTrue(%MapIteratorProtector());
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var set = new Set([1,2,3]);
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assertTrue(%SetIteratorProtector());
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// This changes %IteratorPrototype%. No more tests should be run after this in
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// the same instance.
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var iterator = map.keys();
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// iterator object --> %MapIteratorPrototype% --> %IteratorPrototype%
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iterator.__proto__.__proto__[Symbol.iterator] =
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() => ({next: () => ({done: true})});
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assertFalse(%MapIteratorProtector());
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assertEquals([[1,2], [2,3], [3,4]], [...map]);
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assertEquals([], [...map.entries()]);
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assertEquals([], [...map.keys()]);
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assertEquals([], [...map.values()]);
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assertEquals([], [...iterator]);
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assertFalse(%SetIteratorProtector());
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assertEquals([1,2,3], [...set]);
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assertEquals([], [...set.entries()]);
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assertEquals([], [...set.keys()]);
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assertEquals([], [...set.values()]);
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