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Diffstat (limited to 'src/qml/qml/ftw/qflagpointer_p.h')
-rw-r--r-- | src/qml/qml/ftw/qflagpointer_p.h | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/src/qml/qml/ftw/qflagpointer_p.h b/src/qml/qml/ftw/qflagpointer_p.h deleted file mode 100644 index c8824f3866..0000000000 --- a/src/qml/qml/ftw/qflagpointer_p.h +++ /dev/null @@ -1,234 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtQml 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 The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/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 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QFLAGPOINTER_P_H -#define QFLAGPOINTER_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QtCore/qglobal.h> - -QT_BEGIN_NAMESPACE - -namespace QtPrivate { -template <typename T> struct QFlagPointerAlignment -{ - enum : size_t { Value = Q_ALIGNOF(T) }; -}; -template <> struct QFlagPointerAlignment<void> -{ - enum : size_t { Value = ~size_t(0) }; -}; -} - -template<typename T, typename T2> -class QBiPointer { -public: - inline QBiPointer(); - inline QBiPointer(T *); - inline QBiPointer(T2 *); - inline QBiPointer(const QBiPointer<T, T2> &o); - - inline bool isNull() const; - inline bool isT1() const; - inline bool isT2() const; - - inline bool flag() const; - inline void setFlag(); - inline void clearFlag(); - inline void setFlagValue(bool); - - inline QBiPointer<T, T2> &operator=(const QBiPointer<T, T2> &o); - inline QBiPointer<T, T2> &operator=(T *); - inline QBiPointer<T, T2> &operator=(T2 *); - - friend inline bool operator==(QBiPointer<T, T2> ptr1, QBiPointer<T, T2> ptr2) - { - if (ptr1.isNull() && ptr2.isNull()) - return true; - if (ptr1.isT1() && ptr2.isT1()) - return ptr1.asT1() == ptr2.asT1(); - if (ptr1.isT2() && ptr2.isT2()) - return ptr1.asT2() == ptr2.asT2(); - return false; - } - friend inline bool operator!=(QBiPointer<T, T2> ptr1, QBiPointer<T, T2> ptr2) - { - return !(ptr1 == ptr2); - } - - friend inline void swap(QBiPointer<T, T2> ptr1, QBiPointer<T, T2> ptr2) - { - qSwap(ptr1.ptr_value, ptr2.ptr_value); - } - - inline T *asT1() const; - inline T2 *asT2() const; - -private: - quintptr ptr_value = 0; - - static const quintptr FlagBit = 0x1; - static const quintptr Flag2Bit = 0x2; - static const quintptr FlagsMask = FlagBit | Flag2Bit; -}; - -template<typename T, typename T2> -QBiPointer<T, T2>::QBiPointer() -{ -} - -template<typename T, typename T2> -QBiPointer<T, T2>::QBiPointer(T *v) -: ptr_value(quintptr(v)) -{ - Q_STATIC_ASSERT_X(QtPrivate::QFlagPointerAlignment<T>::Value >= 4, - "Type T does not have sufficient alignment"); - Q_ASSERT((quintptr(v) & FlagsMask) == 0); -} - -template<typename T, typename T2> -QBiPointer<T, T2>::QBiPointer(T2 *v) -: ptr_value(quintptr(v) | Flag2Bit) -{ - Q_STATIC_ASSERT_X(QtPrivate::QFlagPointerAlignment<T2>::Value >= 4, - "Type T2 does not have sufficient alignment"); - Q_ASSERT((quintptr(v) & FlagsMask) == 0); -} - -template<typename T, typename T2> -QBiPointer<T, T2>::QBiPointer(const QBiPointer<T, T2> &o) -: ptr_value(o.ptr_value) -{ -} - -template<typename T, typename T2> -bool QBiPointer<T, T2>::isNull() const -{ - return 0 == (ptr_value & (~FlagsMask)); -} - -template<typename T, typename T2> -bool QBiPointer<T, T2>::isT1() const -{ - return !(ptr_value & Flag2Bit); -} - -template<typename T, typename T2> -bool QBiPointer<T, T2>::isT2() const -{ - return ptr_value & Flag2Bit; -} - -template<typename T, typename T2> -bool QBiPointer<T, T2>::flag() const -{ - return ptr_value & FlagBit; -} - -template<typename T, typename T2> -void QBiPointer<T, T2>::setFlag() -{ - ptr_value |= FlagBit; -} - -template<typename T, typename T2> -void QBiPointer<T, T2>::clearFlag() -{ - ptr_value &= ~FlagBit; -} - -template<typename T, typename T2> -void QBiPointer<T, T2>::setFlagValue(bool v) -{ - if (v) setFlag(); - else clearFlag(); -} - -template<typename T, typename T2> -QBiPointer<T, T2> &QBiPointer<T, T2>::operator=(const QBiPointer<T, T2> &o) -{ - ptr_value = o.ptr_value; - return *this; -} - -template<typename T, typename T2> -QBiPointer<T, T2> &QBiPointer<T, T2>::operator=(T *o) -{ - Q_ASSERT((quintptr(o) & FlagsMask) == 0); - - ptr_value = quintptr(o) | (ptr_value & FlagBit); - return *this; -} - -template<typename T, typename T2> -QBiPointer<T, T2> &QBiPointer<T, T2>::operator=(T2 *o) -{ - Q_ASSERT((quintptr(o) & FlagsMask) == 0); - - ptr_value = quintptr(o) | (ptr_value & FlagBit) | Flag2Bit; - return *this; -} - -template<typename T, typename T2> -T *QBiPointer<T, T2>::asT1() const -{ - Q_ASSERT(isT1()); - return (T *)(ptr_value & ~FlagsMask); -} - -template<typename T, typename T2> -T2 *QBiPointer<T, T2>::asT2() const -{ - Q_ASSERT(isT2()); - return (T2 *)(ptr_value & ~FlagsMask); -} - -QT_END_NAMESPACE - -#endif // QFLAGPOINTER_P_H |