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qx_boost_class_export.h
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    00001 /****************************************************************************
    00002 **
    00003 ** https://www.qxorm.com/
    00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
    00005 **
    00006 ** This file is part of the QxOrm library
    00007 **
    00008 ** This software is provided 'as-is', without any express or implied
    00009 ** warranty. In no event will the authors be held liable for any
    00010 ** damages arising from the use of this software
    00011 **
    00012 ** Commercial Usage
    00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
    00014 ** accordance with the commercial license agreement provided with the
    00015 ** Software or, alternatively, in accordance with the terms contained in
    00016 ** a written agreement between you and Lionel Marty
    00017 **
    00018 ** GNU General Public License Usage
    00019 ** Alternatively, this file may be used under the terms of the GNU
    00020 ** General Public License version 3.0 as published by the Free Software
    00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
    00022 ** packaging of this file. Please review the following information to
    00023 ** ensure the GNU General Public License version 3.0 requirements will be
    00024 ** met : http://www.gnu.org/copyleft/gpl.html
    00025 **
    00026 ** If you are unsure which license is appropriate for your use, or
    00027 ** if you have questions regarding the use of this file, please contact :
    00028 ** contact@qxorm.com
    00029 **
    00030 ****************************************************************************/
    00031
    00032 #ifdef _QX_ENABLE_BOOST_SERIALIZATION
    00033 #ifndef _QX_BOOST_SERIALIZATION_EXPORT_HPP_
    00034 #define _QX_BOOST_SERIALIZATION_EXPORT_HPP_
    00035
    00036 #ifdef _MSC_VER
    00037 #pragma once
    00038 #endif
    00039
    00040 #include <QxCommon/QxConfig.h>
    00041
    00042 #if _QX_USE_MODIFY_BOOST_SERIALIZATION_EXPORT_HPP
    00043
    00044 #include <utility>
    00045 #include <cstddef> // NULL
    00046
    00047 #include <boost/config.hpp>
    00048 #include <boost/preprocessor/stringize.hpp>
    00049
    00050 #ifndef BOOST_SERIALIZATION_DEFAULT_TYPE_INFO
    00051     #include <boost/serialization/extended_type_info_typeid.hpp>
    00052 #endif // BOOST_SERIALIZATION_DEFAULT_TYPE_INFO
    00053
    00054 #include <boost/serialization/static_warning.hpp>
    00055 #include <boost/serialization/type_info_implementation.hpp>
    00056 #include <boost/serialization/assume_abstract.hpp>
    00057 #include <boost/serialization/force_include.hpp>
    00058 #include <boost/serialization/singleton.hpp>
    00059
    00060 #include <boost/archive/detail/register_archive.hpp>
    00061 #include <boost/mpl/assert.hpp>
    00062 #include <boost/mpl/and.hpp>
    00063 #include <boost/mpl/not.hpp>
    00064 #include <boost/mpl/bool.hpp>
    00065
    00066 #include <iostream>
    00067
    00068 namespace boost {
    00069 namespace archive {
    00070 namespace detail {
    00071
    00072 class basic_pointer_iserializer;
    00073 class basic_pointer_oserializer;
    00074
    00075 template<class Archive, class T>
    00076 class pointer_iserializer;
    00077 template<class Archive, class T>
    00078 class pointer_oserializer;
    00079
    00080 template <class Archive, class Serializable>
    00081 struct export_impl
    00082 {
    00083     static const basic_pointer_iserializer &
    00084     enable_load(mpl::true_){
    00085         return boost::serialization::singleton<
    00086             pointer_iserializer<Archive, Serializable>
    00087         >::get_const_instance();
    00088     }
    00089
    00090     static const basic_pointer_oserializer &
    00091     enable_save(mpl::true_){
    00092         return boost::serialization::singleton<
    00093             pointer_oserializer<Archive, Serializable>
    00094         >::get_const_instance();
    00095     }
    00096     inline static void enable_load(mpl::false_) {}
    00097     inline static void enable_save(mpl::false_) {}
    00098 };
    00099
    00100 // On many platforms, naming a specialization of this template is
    00101 // enough to cause its argument to be instantiated.
    00102 template <void(*)()>
    00103 struct instantiate_function {};
    00104
    00105 template <class Archive, class Serializable>
    00106 struct ptr_serialization_support
    00107 {
    00108 # if defined(BOOST_MSVC)
    00109     virtual BOOST_DLLEXPORT void instantiate() QX_USED;
    00110 # elif defined(__BORLANDC__)
    00111     static BOOST_DLLEXPORT void instantiate() QX_USED;
    00112     enum { x = sizeof(instantiate(),3) };
    00113 # else
    00114     static BOOST_DLLEXPORT void instantiate() QX_USED;
    00115     typedef instantiate_function<
    00116         &ptr_serialization_support::instantiate
    00117     > x;
    00118 # endif
    00119 };
    00120
    00121 template <class Archive, class Serializable>
    00122 BOOST_DLLEXPORT void
    00123 ptr_serialization_support<Archive,Serializable>::instantiate()
    00124 {
    00125     export_impl<Archive,Serializable>::enable_save(
    00126         #if ! defined(__BORLANDC__)
    00127         BOOST_DEDUCED_TYPENAME
    00128         #endif
    00129         Archive::is_saving()
    00130     );
    00131
    00132     export_impl<Archive,Serializable>::enable_load(
    00133         #if ! defined(__BORLANDC__)
    00134         BOOST_DEDUCED_TYPENAME
    00135         #endif
    00136         Archive::is_loading()
    00137     );
    00138 }
    00139
    00140 template<class T>
    00141 struct guid_initializer
    00142 {
    00143     const guid_initializer & export_guid(char const* /* key */, mpl::false_){
    00144         // generates the statically-initialized objects whose constructors
    00145         // register the information allowing serialization of T objects
    00146         // through pointers to their base classes.
    00147         instantiate_ptr_serialization((T*)0, 0, adl_tag());
    00148         return *this;
    00149     }
    00150     const guid_initializer & export_guid(char const* /*key*/, mpl::true_){
    00151         return *this;
    00152     }
    00153     const guid_initializer & export_guid(char const* key){
    00154         BOOST_STATIC_WARNING(boost::is_polymorphic<T>::value);
    00155         assert(NULL != key);
    00156         boost::serialization::singleton<
    00157             BOOST_DEDUCED_TYPENAME
    00158             boost::serialization::type_info_implementation<T>::type
    00159         >::get_mutable_instance().key_register(key);
    00160         // note: exporting an abstract base class will have no effect
    00161         // and cannot be used to instantitiate serialization code
    00162         // (one might be using this in a DLL to instantiate code)
    00163         //BOOST_STATIC_WARNING(! boost::serialization::is_abstract<T>::value);
    00164         return export_guid(key, boost::serialization::is_abstract<T>());
    00165     }
    00166 };
    00167
    00168 } // namespace detail
    00169 } // namespace archive
    00170 } // namespace boost
    00171
    00172 #define BOOST_CLASS_EXPORT_GUID(T, K)                                               \
    00173 namespace                                                                           \
    00174 {                                                                                   \
    00175     ::boost::archive::detail::guid_initializer< T > const &                         \
    00176         boost_serialization_guid_initializer_##T                                    \
    00177         = ::boost::serialization::singleton<                                        \
    00178             ::boost::archive::detail::guid_initializer< T >                         \
    00179           >::get_mutable_instance().export_guid(K);                                 \
    00180 }
    00181
    00182 // check for unnecessary export.  T isn't polymorphic so there is no
    00183 // need to export it.
    00184 #define BOOST_CLASS_EXPORT_CHECK(T)                              \
    00185     BOOST_STATIC_WARNING(                                        \
    00186         boost::is_polymorphic<U>::value                          \
    00187     );                                                           \
    00188
    00189
    00190 // the default exportable class identifier is the class name
    00191 // the default list of archives types for which code id generated
    00192 // are the originally included with this serialization system
    00193 #define BOOST_CLASS_EXPORT(T)                   \
    00194     BOOST_CLASS_EXPORT_GUID(                    \
    00195         T,                                      \
    00196         BOOST_PP_STRINGIZE(T)                   \
    00197     )                                           \
    00198
    00199
    00200 #endif // _QX_USE_MODIFY_BOOST_SERIALIZATION_EXPORT_HPP
    00201 #endif // _QX_BOOST_SERIALIZATION_EXPORT_HPP_
    00202 #endif // _QX_ENABLE_BOOST_SERIALIZATION