third_party/WebKit/Source/bindings/core/v8/ActiveScriptWrappable.h

// Copyright 2016 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 ActiveScriptWrappable_h
#define ActiveScriptWrappable_h

#include "core/CoreExport.h"
#include "platform/heap/Handle.h"
#include "wtf/Noncopyable.h"

namespace v8 {
class Isolate;
}

namespace blink {

class ScriptWrappable;
class ScriptWrappableVisitor;

/**
 * Classes deriving from ActiveScriptWrappable will be registered in a
 * thread-specific list. They keep their wrappers and dependant objects alive
 * as long as they have pending activity.
 */
class CORE_EXPORT ActiveScriptWrappable : public GarbageCollectedMixin {
  WTF_MAKE_NONCOPYABLE(ActiveScriptWrappable);

 public:
  explicit ActiveScriptWrappable(ScriptWrappable*);

  static void traceActiveScriptWrappables(v8::Isolate*,
                                          ScriptWrappableVisitor*);

 private:
  ScriptWrappable* toScriptWrappable() const { return m_scriptWrappable; }

  ScriptWrappable* m_scriptWrappable;
};

}  // namespace blink

#endif  // ActiveScriptWrappable_h