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// Copyright 2022 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: --omit-default-ctors --allow-natives-syntax --turbofan
// Flags: --no-always-turbofan
// This behavior is not spec compliant, see crbug.com/v8/13249.
(function ArrayIteratorMonkeyPatched() {
let iterationCount = 0;
const oldIterator = Array.prototype[Symbol.iterator];
Array.prototype[Symbol.iterator] =
function () { ++iterationCount; return oldIterator.call(this); };
class A {}
class B extends A {}
class C extends B {}
%PrepareFunctionForOptimization(C);
new C();
%OptimizeFunctionOnNextCall(C);
// C default ctor doing "...args" and B default ctor doing "...args".
assertEquals(2, iterationCount);
new C();
// C default ctor doing "...args" and B default ctor doing "...args".
assertEquals(4, iterationCount);
assertOptimized(C); // No deopt.
Array.prototype[Symbol.iterator] = oldIterator;
})();
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