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130 lines
3.7 KiB
130 lines
3.7 KiB
/****************************************************************************
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**
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** https://www.qxorm.com/
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** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
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**
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** This file is part of the QxOrm library
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any
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** damages arising from the use of this software
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**
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** Commercial Usage
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** Licensees holding valid commercial QxOrm licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Lionel Marty
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file 'license.gpl3.txt' included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met : http://www.gnu.org/copyleft/gpl.html
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**
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** If you are unsure which license is appropriate for your use, or
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** if you have questions regarding the use of this file, please contact :
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** contact@qxorm.com
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**
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****************************************************************************/
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#ifndef _QX_ANY_CAST_DYNAMIC_H_
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#define _QX_ANY_CAST_DYNAMIC_H_
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#ifdef _MSC_VER
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#pragma once
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#endif
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/*!
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* \file QxAnyCastDynamic.h
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* \author Lionel Marty
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* \ingroup QxCommon
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* \brief qx::any_cast_dynamic<T>::get() : provides a tool to use qx::any_cast and polymorphism
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*/
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#include <QtCore/qsharedpointer.h>
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#include <QxCommon/QxAny.h>
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#include <QxDao/QxDaoPointer.h>
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namespace qx {
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template <typename T>
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struct any_cast_dynamic
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{ static T get(const qx::any & a) { return qx::any_cast<T>(a); } };
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template <typename T>
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struct any_cast_dynamic<T *>
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{
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static T * get(const qx::any & a)
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{
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if (a.empty()) { return NULL; }
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qx::any * b = const_cast<qx::any *>(& a);
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T ** t = qx::unsafe_any_cast<T *>(b);
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if (! t) { return NULL; }
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return (* t);
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}
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};
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#ifdef _QX_ENABLE_BOOST
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template <typename T>
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struct any_cast_dynamic< boost::shared_ptr<T> >
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{
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static boost::shared_ptr<T> get(const qx::any & a)
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{
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if (a.empty()) { return boost::shared_ptr<T>(); }
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qx::any * b = const_cast<qx::any *>(& a);
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boost::shared_ptr<T> * t = qx::unsafe_any_cast< boost::shared_ptr<T> >(b);
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if (! t) { return boost::shared_ptr<T>(); }
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return (* t);
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}
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};
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#endif // _QX_ENABLE_BOOST
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template <typename T>
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struct any_cast_dynamic< QSharedPointer<T> >
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{
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static QSharedPointer<T> get(const qx::any & a)
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{
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if (a.empty()) { return QSharedPointer<T>(); }
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qx::any * b = const_cast<qx::any *>(& a);
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QSharedPointer<T> * t = qx::unsafe_any_cast< QSharedPointer<T> >(b);
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if (! t) { return QSharedPointer<T>(); }
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return (* t);
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}
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};
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template <typename T>
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struct any_cast_dynamic< qx::dao::ptr<T> >
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{
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static qx::dao::ptr<T> get(const qx::any & a)
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{
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if (a.empty()) { return qx::dao::ptr<T>(); }
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qx::any * b = const_cast<qx::any *>(& a);
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qx::dao::ptr<T> * t = qx::unsafe_any_cast< qx::dao::ptr<T> >(b);
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if (! t) { return qx::dao::ptr<T>(); }
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return (* t);
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}
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};
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template <typename T>
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struct any_cast_dynamic< std::shared_ptr<T> >
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{
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static std::shared_ptr<T> get(const qx::any & a)
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{
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if (a.empty()) { return std::shared_ptr<T>(); }
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qx::any * b = const_cast<qx::any *>(& a);
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std::shared_ptr<T> * t = qx::unsafe_any_cast< std::shared_ptr<T> >(b);
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if (! t) { return std::shared_ptr<T>(); }
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return (* t);
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}
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};
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} // namespace qx
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#endif // _QX_ANY_CAST_DYNAMIC_H_
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