// Copyright 2017 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 class Base {} class Derived extends Base { constructor() { super(); } } %PrepareFunctionForOptimization(Derived); var proxy = new Proxy(Base, { get() {} }); assertDoesNotThrow(() => Reflect.construct(Derived, [])); assertThrows(() => Reflect.construct(Derived, [], proxy), TypeError); assertThrows(() => Reflect.construct(Derived, [], proxy), TypeError); %OptimizeFunctionOnNextCall(Derived); assertThrows(() => Reflect.construct(Derived, [], proxy), TypeError);