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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef TRACE_AFTER_DISPATCH_IMPL_H_
#define TRACE_AFTER_DISPATCH_IMPL_H_
#include "heap/stubs.h"
namespace blink {
class X : public GarbageCollected<X> {
public:
void Trace(Visitor*) const {}
};
enum ClassTag {
BASE, DERIVED
};
class TraceAfterDispatchInlinedBase
: public GarbageCollected<TraceAfterDispatchInlinedBase> {
public:
explicit TraceAfterDispatchInlinedBase(ClassTag tag) : tag_(tag) {}
void Trace(Visitor*) const;
void TraceAfterDispatch(Visitor* visitor) const { visitor->Trace(x_base_); }
private:
ClassTag tag_;
Member<X> x_base_;
};
class TraceAfterDispatchInlinedDerived : public TraceAfterDispatchInlinedBase {
public:
TraceAfterDispatchInlinedDerived() : TraceAfterDispatchInlinedBase(DERIVED) {}
void TraceAfterDispatch(Visitor* visitor) const {
visitor->Trace(x_derived_);
TraceAfterDispatchInlinedBase::TraceAfterDispatch(visitor);
}
private:
Member<X> x_derived_;
};
class TraceAfterDispatchExternBase
: public GarbageCollected<TraceAfterDispatchExternBase> {
public:
explicit TraceAfterDispatchExternBase(ClassTag tag) : tag_(tag) {}
void Trace(Visitor* visitor) const;
void TraceAfterDispatch(Visitor* visitor) const;
private:
ClassTag tag_;
Member<X> x_base_;
};
class TraceAfterDispatchExternDerived : public TraceAfterDispatchExternBase {
public:
TraceAfterDispatchExternDerived() : TraceAfterDispatchExternBase(DERIVED) {}
void TraceAfterDispatch(Visitor* visitor) const;
private:
Member<X> x_derived_;
};
}
#endif // TRACE_AFTER_DISPATCH_IMPL_H_
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