blink_gc_plugin/tests/trace_after_dispatch_impl.cpp

// Copyright 2015 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.

#include "trace_after_dispatch_impl.h"

namespace blink {

void TraceAfterDispatchInlinedBase::Trace(Visitor* visitor) const {
  // Implement a simple form of manual dispatching, because BlinkGCPlugin
  // checks if the tracing is dispatched to all derived classes.
  //
  // This function has to be implemented out-of-line, since we need to know the
  // definition of derived classes here.
  if (tag_ == DERIVED) {
    static_cast<const TraceAfterDispatchInlinedDerived*>(this)
        ->TraceAfterDispatch(visitor);
  } else {
    TraceAfterDispatch(visitor);
  }
}

void TraceAfterDispatchExternBase::Trace(Visitor* visitor) const {
  if (tag_ == DERIVED) {
    static_cast<const TraceAfterDispatchExternDerived*>(this)
        ->TraceAfterDispatch(visitor);
  } else {
    TraceAfterDispatch(visitor);
  }
}

void TraceAfterDispatchExternBase::TraceAfterDispatch(Visitor* visitor) const {
  visitor->Trace(x_base_);
}

void TraceAfterDispatchExternDerived::TraceAfterDispatch(
    Visitor* visitor) const {
  visitor->Trace(x_derived_);
  TraceAfterDispatchExternBase::TraceAfterDispatch(visitor);
}
}