gecko-dev/dom/bindings/RootedDictionary.h

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_RootedDictionary_h__
#define mozilla_dom_RootedDictionary_h__

#include "mozilla/GuardObjects.h"
#include "mozilla/dom/Nullable.h"
#include "jsapi.h"

namespace mozilla {
namespace dom {

template<typename T>
class MOZ_RAII RootedDictionary final : public T,
                                         private JS::CustomAutoRooter
{
public:
  explicit RootedDictionary(JSContext* cx MOZ_GUARD_OBJECT_NOTIFIER_PARAM) :
    T(),
    JS::CustomAutoRooter(cx MOZ_GUARD_OBJECT_NOTIFIER_PARAM_TO_PARENT)
  {
  }

  virtual void trace(JSTracer *trc) override
  {
    this->TraceDictionary(trc);
  }
};

template<typename T>
class MOZ_RAII NullableRootedDictionary final : public Nullable<T>,
                                                 private JS::CustomAutoRooter
{
public:
  explicit NullableRootedDictionary(JSContext* cx MOZ_GUARD_OBJECT_NOTIFIER_PARAM) :
    Nullable<T>(),
    JS::CustomAutoRooter(cx MOZ_GUARD_OBJECT_NOTIFIER_PARAM_TO_PARENT)
  {
  }

  virtual void trace(JSTracer *trc) override
  {
    if (!this->IsNull()) {
      this->Value().TraceDictionary(trc);
    }
  }
};

} // namespace dom
} // namespace mozilla

#endif /* mozilla_dom_RootedDictionary_h__ */