55efb6cc5d
- Introduce new helper IsFastJSArrayWithNoCustomIteration.
- Consolidates all entry array checks...
- Is a fast array (defers to BranchIfFastJSArray)
- No possibility that the Array's iteration protocol has been tampered with
- Introduce new BoolT constant helpers Int32TrueConstant and Int32FalseConstant.
Bug: chromium:804176, chromium:804188
Change-Id: I6b08396484682dc680b431ea564a7a28eeab8108
Reviewed-on: https://chromium-review.googlesource.com/883065
Commit-Queue: Peter Wong <peter.wm.wong@gmail.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50867}
66 lines
1.9 KiB
JavaScript
66 lines
1.9 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 --opt
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function TestSetWithCustomIterator(ctor) {
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const k1 = {};
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const k2 = {};
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const entries = [k1];
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let callCount = 0;
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entries[Symbol.iterator] = () => ({
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next: () =>
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callCount++ === 0
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? { value: k2, done: false }
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: { done: true }
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});
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const set = new ctor(entries);
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assertFalse(set.has(k1));
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assertTrue(set.has(k2));
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assertEquals(2, callCount);
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}
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TestSetWithCustomIterator(Set);
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TestSetWithCustomIterator(Set);
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TestSetWithCustomIterator(Set);
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%OptimizeFunctionOnNextCall(TestSetWithCustomIterator);
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TestSetWithCustomIterator(Set);
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assertOptimized(TestSetWithCustomIterator);
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TestSetWithCustomIterator(WeakSet);
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TestSetWithCustomIterator(WeakSet);
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TestSetWithCustomIterator(WeakSet);
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%OptimizeFunctionOnNextCall(TestSetWithCustomIterator);
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TestSetWithCustomIterator(WeakSet);
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assertOptimized(TestSetWithCustomIterator);
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function TestMapWithCustomIterator(ctor) {
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const k1 = {};
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const k2 = {};
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const entries = [[k1, 1]];
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let callCount = 0;
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entries[Symbol.iterator] = () => ({
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next: () =>
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callCount++ === 0
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? { value: [k2, 2], done: false }
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: { done: true }
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});
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const map = new ctor(entries);
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assertFalse(map.has(k1));
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assertEquals(2, map.get(k2));
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assertEquals(2, callCount);
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}
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TestMapWithCustomIterator(Map);
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TestMapWithCustomIterator(Map);
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TestMapWithCustomIterator(Map);
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%OptimizeFunctionOnNextCall(TestMapWithCustomIterator);
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TestMapWithCustomIterator(Map);
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assertOptimized(TestMapWithCustomIterator);
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TestMapWithCustomIterator(WeakMap);
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TestMapWithCustomIterator(WeakMap);
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TestMapWithCustomIterator(WeakMap);
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%OptimizeFunctionOnNextCall(TestMapWithCustomIterator);
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TestMapWithCustomIterator(WeakMap);
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assertOptimized(TestMapWithCustomIterator);
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