Sylvestre Ledru
6149f49299
replaced by .editorconfig # ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D287878
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Smart pointer which leaks its owning refcounted object by default. */
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#ifndef MaybeLeakRefPtr_h
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#define MaybeLeakRefPtr_h
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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/**
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* Instances of this class are a RefPtr<T> which may not call Release() from its
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* destructor. This is done by leaking the stored reference on destruction.
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*
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* This behaviour is customizable for methods like nsIEventTarget::Dispatch
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* which have customizable leak-on-error semantics.
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*/
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template <class T>
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class MaybeLeakRefPtr : public RefPtr<T> {
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public:
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explicit MaybeLeakRefPtr(already_AddRefed<T>&& aPtr, bool aAutoRelease)
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: RefPtr<T>(std::move(aPtr)), mAutoRelease(aAutoRelease) {}
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MaybeLeakRefPtr(const MaybeLeakRefPtr&) = delete;
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MaybeLeakRefPtr& operator=(const MaybeLeakRefPtr&) = delete;
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~MaybeLeakRefPtr() {
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if (!mAutoRelease) {
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// If mAutoRelease is not set, take the value out of this and leak it
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// before the base class destructor would call Release().
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RefPtr<T>::forget().leak();
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}
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}
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private:
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bool mAutoRelease = false;
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};
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} // namespace mozilla
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#endif // MaybeLeakRefPtr_h
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