// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CYCLE_SUPER_H_
#define CYCLE_SUPER_H_
#include "heap/stubs.h"
namespace WebCore {
class D;
// This contains a leaking cycle:
// D -per-> C -sup-> B -sup-> A -ref-> D
class A : public GarbageCollectedFinalized<A> {
public:
virtual void trace(Visitor*);
private:
RefPtr<D> m_d;
};
class B : public A {
public:
virtual void trace(Visitor*);
};
class C : public B {
public:
virtual void trace(Visitor*);
};
class D : public RefCounted<C> {
private:
Persistent<C> m_c;
};
}
#endif