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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 TestSetWithModifiedIterator(ctor) {
const k1 = {};
const k2 = {};
const entries = [k1, k2];
const arrayIteratorProto = Object.getPrototypeOf(entries[Symbol.iterator]());
const originalNext = arrayIteratorProto.next;
let callCount = 0;
arrayIteratorProto.next = function() {
callCount++;
return originalNext.call(this);
};
const set = new ctor(entries);
assertEquals(3, callCount); // +1 for iterator done
if('size' in set) assertEquals(2, set.size);
assertTrue(set.has(k1));
assertTrue(set.has(k2));
arrayIteratorProto.next = originalNext;
}
TestSetWithModifiedIterator(Set);
TestSetWithModifiedIterator(Set);
TestSetWithModifiedIterator(Set);
%OptimizeFunctionOnNextCall(TestSetWithModifiedIterator);
TestSetWithModifiedIterator(Set);
assertOptimized(TestSetWithModifiedIterator);
%DeoptimizeFunction(TestSetWithModifiedIterator);
TestSetWithModifiedIterator(WeakSet);
TestSetWithModifiedIterator(WeakSet);
TestSetWithModifiedIterator(WeakSet);
%OptimizeFunctionOnNextCall(TestSetWithModifiedIterator);
TestSetWithModifiedIterator(WeakSet);
assertOptimized(TestSetWithModifiedIterator);
%DeoptimizeFunction(TestSetWithModifiedIterator);
function TestMapWithModifiedIterator(ctor) {
const k1 = {};
const k2 = {};
const entries = [[k1, 1], [k2, 2]];
const arrayIteratorProto = Object.getPrototypeOf(entries[Symbol.iterator]());
const originalNext = arrayIteratorProto.next;
let callCount = 0;
arrayIteratorProto.next = function() {
callCount++;
return originalNext.call(this);
};
const set = new ctor(entries);
assertEquals(3, callCount); // +1 for iterator done
if('size' in set) assertEquals(2, set.size);
assertEquals(1, set.get(k1));
assertEquals(2, set.get(k2));
arrayIteratorProto.next = originalNext;
}
TestMapWithModifiedIterator(Map);
TestMapWithModifiedIterator(Map);
TestMapWithModifiedIterator(Map);
%OptimizeFunctionOnNextCall(TestMapWithModifiedIterator);
TestMapWithModifiedIterator(Map);
assertOptimized(TestMapWithModifiedIterator);
%DeoptimizeFunction(TestMapWithModifiedIterator);
TestMapWithModifiedIterator(WeakMap);
TestMapWithModifiedIterator(WeakMap);
TestMapWithModifiedIterator(WeakMap);
%OptimizeFunctionOnNextCall(TestMapWithModifiedIterator);
TestMapWithModifiedIterator(WeakMap);
assertOptimized(TestMapWithModifiedIterator);
%DeoptimizeFunction(TestMapWithModifiedIterator);
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