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137838b760
The Rule of Three means that a class with a non-default dtor should also have a non-default copy constructor and copy assignment operator. If the default versions of any of these constructors are used, then you end up with negative leaks. Differential Revision: https://phabricator.services.mozilla.com/D9305 --HG-- extra : moz-landing-system : lando
49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_NonRefcountedDOMObject_h__
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#define mozilla_dom_NonRefcountedDOMObject_h__
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#include "nsISupportsImpl.h"
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namespace mozilla {
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namespace dom {
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// Natives for DOM classes that aren't refcounted need to inherit from this
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// class.
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// If you're seeing objects of this class leak then natives for one of the DOM
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// classes inheriting from it are leaking. If the native for that class has
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// MOZ_COUNT_CTOR/DTOR in its constructor/destructor then it should show up in
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// the leak log too.
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class NonRefcountedDOMObject
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{
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protected:
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NonRefcountedDOMObject()
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{
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MOZ_COUNT_CTOR(NonRefcountedDOMObject);
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}
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~NonRefcountedDOMObject()
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{
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MOZ_COUNT_DTOR(NonRefcountedDOMObject);
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}
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NonRefcountedDOMObject(const NonRefcountedDOMObject& aOther)
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: NonRefcountedDOMObject()
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{}
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NonRefcountedDOMObject& operator=(const NonRefcountedDOMObject& aOther)
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{
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NonRefcountedDOMObject();
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return *this;
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}
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_NonRefcountedDOMObject_h__ */
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