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::dom {
  13
  14 // Natives for DOM classes that aren't refcounted need to inherit from this
  15 // class.
  16 // If you're seeing objects of this class leak then natives for one of the DOM
  17 // classes inheriting from it are leaking. If the native for that class has
  18 // MOZ_COUNT_CTOR/DTOR in its constructor/destructor then it should show up in
  19 // the leak log too.
  20 class NonRefcountedDOMObject {
  21  protected:
  22   MOZ_COUNTED_DEFAULT_CTOR(NonRefcountedDOMObject)
  23
  24   MOZ_COUNTED_DTOR(NonRefcountedDOMObject)
  25
  26   NonRefcountedDOMObject(const NonRefcountedDOMObject& aOther)
  27       : NonRefcountedDOMObject() {}
  28
  29   NonRefcountedDOMObject& operator=(const NonRefcountedDOMObject& aOther) {
  30     NonRefcountedDOMObject();
  31     return *this;
  32   }
  33 };
  34
  35 }  // namespace mozilla::dom
  36
  37 #endif /* mozilla_dom_NonRefcountedDOMObject_h__ */