dom/bindings/NonRefcountedDOMObject.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_NonRefcountedDOMObject_h__
   8 #define mozilla_dom_NonRefcountedDOMObject_h__
   9
  10 #include "nsISupportsImpl.h"
  11
  12 namespace mozilla {
  13 namespace dom {
  14
  15 // Natives for DOM classes that aren't refcounted need to inherit from this
  16 // class.
  17 // If you're seeing objects of this class leak then natives for one of the DOM
  18 // classes inheriting from it are leaking. If the native for that class has
  19 // MOZ_COUNT_CTOR/DTOR in its constructor/destructor then it should show up in
  20 // the leak log too.
  21 class NonRefcountedDOMObject {
  22  protected:
  23   MOZ_COUNTED_DEFAULT_CTOR(NonRefcountedDOMObject)
  24
  25   MOZ_COUNTED_DTOR(NonRefcountedDOMObject)
  26
  27   NonRefcountedDOMObject(const NonRefcountedDOMObject& aOther)
  28       : NonRefcountedDOMObject() {}
  29
  30   NonRefcountedDOMObject& operator=(const NonRefcountedDOMObject& aOther) {
  31     NonRefcountedDOMObject();
  32     return *this;
  33   }
  34 };
  35
  36 }  // namespace dom
  37 }  // namespace mozilla
  38
  39 #endif /* mozilla_dom_NonRefcountedDOMObject_h__ */