v8/test/mjsunit/es6/map-iterator-7.js
Jakob Linke 6904a8120b [cleanup] Remove --stress-opt remnants
.. 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}
2022-08-31 08:37:44 +00:00

23 lines
748 B
JavaScript

// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
var map = new Map([[1,2], [2,3], [3,4]]);
assertTrue(%MapIteratorProtector());
assertTrue(%SetIteratorProtector());
// This changes %MapIteratorPrototype%. No more tests should be run after this
// in the same instance.
var iterator = map.entries();
iterator.__proto__.next = () => ({done: true});
assertFalse(%MapIteratorProtector());
assertTrue(%SetIteratorProtector());
assertEquals([], [...map]);
assertEquals([], [...map.entries()]);
assertEquals([], [...map.keys()]);
assertEquals([], [...map.values()]);
assertEquals([], [...iterator]);