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// 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_PTRS_H_
#define CYCLE_PTRS_H_
#include "heap/stubs.h"
namespace blink {
class B;
class C;
class D;
class E;
// This contains a leaking cycle:
// E -per-> A -mem-> B -ref-> C -own-> D -own-vec-> E
// The traced cycle from A -> B -> A does not leak.
class A : public GarbageCollected<A> {
public:
virtual void trace(Visitor*);
private:
Member<B> m_b;
};
class B : public GarbageCollectedFinalized<B> {
public:
virtual void trace(Visitor*);
private:
Member<A> m_a;
RefPtr<C> m_c;
};
class C : public RefCounted<C> {
private:
OwnPtr<D> m_d;
};
class D {
private:
Vector<OwnPtr<E> > m_es;
};
class E {
private:
Persistent<A> m_a;
};
}
#endif
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