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// 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 --opt
function TestMapConstructorEntrySideEffect(ctor) {
const originalPrototypeSet = ctor.prototype.set;
const k1 = {};
const k2 = {};
let callCount = 0;
const input = [
Object.defineProperty([, 1], "0", {
get() {
// Verify continuation retains original set function
ctor.prototype.set = () => {
callCount++;
};
return k1;
}
}),
[k2, 2]
];
const col = new ctor(input);
assertEquals(0, callCount);
if ('size' in col) assertEquals(2, col.size);
assertTrue(col.has(k1));
assertTrue(col.has(k2));
const col2 = new ctor(input);
assertEquals(2, callCount);
if ('size' in col) assertEquals(0, col2.size);
assertFalse(col2.has(k1));
assertFalse(col2.has(k2));
ctor.prototype.set = originalPrototypeSet;
}
%PrepareFunctionForOptimization(TestMapConstructorEntrySideEffect);
TestMapConstructorEntrySideEffect(Map);
TestMapConstructorEntrySideEffect(Map);
TestMapConstructorEntrySideEffect(Map);
%OptimizeFunctionOnNextCall(TestMapConstructorEntrySideEffect);
TestMapConstructorEntrySideEffect(Map);
assertOptimized(TestMapConstructorEntrySideEffect);
// This call would deopt
TestMapConstructorEntrySideEffect(WeakMap);
%PrepareFunctionForOptimization(TestMapConstructorEntrySideEffect);
TestMapConstructorEntrySideEffect(WeakMap);
TestMapConstructorEntrySideEffect(WeakMap);
%OptimizeFunctionOnNextCall(TestMapConstructorEntrySideEffect);
TestMapConstructorEntrySideEffect(WeakMap);
assertOptimized(TestMapConstructorEntrySideEffect);
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