diff options
Diffstat (limited to 'src/3rdparty/masm/stubs/wtf/PassRefPtr.h')
-rw-r--r-- | src/3rdparty/masm/stubs/wtf/PassRefPtr.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/3rdparty/masm/stubs/wtf/PassRefPtr.h b/src/3rdparty/masm/stubs/wtf/PassRefPtr.h new file mode 100644 index 0000000000..d97be1c330 --- /dev/null +++ b/src/3rdparty/masm/stubs/wtf/PassRefPtr.h @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the V4VM module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef PASSREFPTR_H +#define PASSREFPTR_H + +template <typename T> class RefPtr; + +template <typename T> +class PassRefPtr { +public: + PassRefPtr() : m_ptr(0) {} + + PassRefPtr(T* ptr) + : m_ptr(ptr) + { + if (m_ptr) + m_ptr->ref(); + } + + PassRefPtr(const PassRefPtr<T>& other) + : m_ptr(other.leakRef()) + { + } + + PassRefPtr(const RefPtr<T>& other) + : m_ptr(other.get()) + { + if (m_ptr) + m_ptr->ref(); + } + + ~PassRefPtr() + { + if (m_ptr) + m_ptr->deref(); + } + + T* operator->() const { return m_ptr; } + + T* leakRef() const + { + T* result = m_ptr; + m_ptr = 0; + return result; + } + +private: + PassRefPtr<T>& operator=(const PassRefPtr<T>&) + {} + + template <typename PtrType> friend PassRefPtr<PtrType> adoptRef(PtrType*); + mutable T* m_ptr; +}; + +template <typename T> +PassRefPtr<T> adoptRef(T* ptr) +{ + PassRefPtr<T> result; + result.m_ptr = ptr; + return result; +} + +#endif // PASSREFPTR_H |