49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
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// 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 TestMapConstructorEntrySideEffect(ctor) {
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const k1 = {};
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const k2 = {};
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const k3 = {};
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let callCount = 0;
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const input = [
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Object.defineProperty([, 1], "0", {
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get() {
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input.length = 2;
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return k1;
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}
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}),
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[k2, 2],
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Object.defineProperty([, 3], "0", {
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get() {
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callCount++;
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return k3;
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}
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})
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];
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const col = new ctor(input);
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assertEquals(0, callCount);
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if ('size' in col) assertEquals(2, col.size);
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assertEquals(col.get(k1), 1);
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assertEquals(col.get(k2), 2);
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assertFalse(col.has(k3));
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}
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TestMapConstructorEntrySideEffect(Map);
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TestMapConstructorEntrySideEffect(Map);
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TestMapConstructorEntrySideEffect(Map);
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%OptimizeFunctionOnNextCall(TestMapConstructorEntrySideEffect);
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TestMapConstructorEntrySideEffect(Map);
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assertOptimized(TestMapConstructorEntrySideEffect);
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TestMapConstructorEntrySideEffect(WeakMap);
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TestMapConstructorEntrySideEffect(WeakMap);
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TestMapConstructorEntrySideEffect(WeakMap);
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%OptimizeFunctionOnNextCall(TestMapConstructorEntrySideEffect);
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TestMapConstructorEntrySideEffect(WeakMap);
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assertOptimized(TestMapConstructorEntrySideEffect);
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