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#ifndef BOOST_SERIALIZATION_EXPORT_HPP
#define BOOST_SERIALIZATION_EXPORT_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER)
# pragma once
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// export.hpp: set traits of classes to be serialized
// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org for updates, documentation, and revision history.
// (C) Copyright 2006 David Abrahams - http://www.boost.org.
// implementation of class export functionality. This is an alternative to
// "forward declaration" method to provoke instantiation of derived classes
// that are to be serialized through pointers.
#include <utility>
#include <cstddef> // NULL
#include <boost/config.hpp>
#include <boost/static_assert.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/type_traits/is_polymorphic.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/mpl/and.hpp>
#include <boost/mpl/not.hpp>
#include <boost/mpl/bool_fwd.hpp>
#include <boost/serialization/extended_type_info.hpp> // for guid_defined only
#include <boost/serialization/static_warning.hpp>
#include <boost/serialization/assume_abstract.hpp>
#include <boost/serialization/force_include.hpp>
#include <boost/serialization/singleton.hpp>
#include <boost/archive/detail/register_archive.hpp>
#include <iostream>
namespace boost {
namespace archive {
namespace detail {
class basic_pointer_iserializer;
class basic_pointer_oserializer;
template<class Archive, class T>
class pointer_iserializer;
template<class Archive, class T>
class pointer_oserializer;
template <class Archive, class Serializable>
struct export_impl
{
static const basic_pointer_iserializer &
enable_load(mpl::true_){
return boost::serialization::singleton<
pointer_iserializer<Archive, Serializable>
>::get_const_instance();
}
static const basic_pointer_oserializer &
enable_save(mpl::true_){
return boost::serialization::singleton<
pointer_oserializer<Archive, Serializable>
>::get_const_instance();
}
inline static void enable_load(mpl::false_) {}
inline static void enable_save(mpl::false_) {}
};
// On many platforms, naming a specialization of this template is
// enough to cause its argument to be instantiated.
template <void(*)()>
struct instantiate_function {};
template <class Archive, class Serializable>
struct ptr_serialization_support
{
# if defined(BOOST_MSVC) || defined(__SUNPRO_CC)
virtual BOOST_DLLEXPORT void instantiate() BOOST_USED;
# else
static BOOST_DLLEXPORT void instantiate() BOOST_USED;
typedef instantiate_function<
&ptr_serialization_support::instantiate
> x;
# endif
};
template <class Archive, class Serializable>
BOOST_DLLEXPORT void
ptr_serialization_support<Archive,Serializable>::instantiate()
{
export_impl<Archive,Serializable>::enable_save(
typename Archive::is_saving()
);
export_impl<Archive,Serializable>::enable_load(
typename Archive::is_loading()
);
}
// Note INTENTIONAL usage of anonymous namespace in header.
// This was made this way so that export.hpp could be included
// in other headers. This is still under study.
namespace extra_detail {
template<class T>
struct guid_initializer
{
void export_guid(mpl::false_) const {
// generates the statically-initialized objects whose constructors
// register the information allowing serialization of T objects
// through pointers to their base classes.
instantiate_ptr_serialization((T*)0, 0, adl_tag());
}
void export_guid(mpl::true_) const {
}
guid_initializer const & export_guid() const {
BOOST_STATIC_WARNING(boost::is_polymorphic< T >::value);
// note: exporting an abstract base class will have no effect
// and cannot be used to instantitiate serialization code
// (one might be using this in a DLL to instantiate code)
//BOOST_STATIC_WARNING(! boost::serialization::is_abstract< T >::value);
export_guid(boost::serialization::is_abstract< T >());
return *this;
}
};
template<typename T>
struct init_guid;
} // anonymous
} // namespace detail
} // namespace archive
} // namespace boost
#define BOOST_CLASS_EXPORT_IMPLEMENT(T) \
namespace boost { \
namespace archive { \
namespace detail { \
namespace extra_detail { \
template<> \
struct init_guid< T > { \
static guid_initializer< T > const & g; \
}; \
guid_initializer< T > const & init_guid< T >::g = \
::boost::serialization::singleton< \
guid_initializer< T > \
>::get_mutable_instance().export_guid(); \
}}}} \
/**/
#define BOOST_CLASS_EXPORT_KEY2(T, K) \
namespace boost { \
namespace serialization { \
template<> \
struct guid_defined< T > : boost::mpl::true_ {}; \
template<> \
inline const char * guid< T >(){ \
return K; \
} \
} /* serialization */ \
} /* boost */ \
/**/
#define BOOST_CLASS_EXPORT_KEY(T) \
BOOST_CLASS_EXPORT_KEY2(T, BOOST_PP_STRINGIZE(T)) \
/**/
#define BOOST_CLASS_EXPORT_GUID(T, K) \
BOOST_CLASS_EXPORT_KEY2(T, K) \
BOOST_CLASS_EXPORT_IMPLEMENT(T) \
/**/
#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3205))
// CodeWarrior fails to construct static members of class templates
// when they are instantiated from within templates, so on that
// compiler we ask users to specifically register base/derived class
// relationships for exported classes. On all other compilers, use of
// this macro is entirely optional.
# define BOOST_SERIALIZATION_MWERKS_BASE_AND_DERIVED(Base,Derived) \
namespace { \
static int BOOST_PP_CAT(boost_serialization_mwerks_init_, __LINE__) = \
(::boost::archive::detail::instantiate_ptr_serialization((Derived*)0,0), 3); \
static int BOOST_PP_CAT(boost_serialization_mwerks_init2_, __LINE__) = ( \
::boost::serialization::void_cast_register((Derived*)0,(Base*)0) \
, 3); \
}
#else
# define BOOST_SERIALIZATION_MWERKS_BASE_AND_DERIVED(Base,Derived)
#endif
// check for unnecessary export. T isn't polymorphic so there is no
// need to export it.
#define BOOST_CLASS_EXPORT_CHECK(T) \
BOOST_STATIC_WARNING( \
boost::is_polymorphic<U>::value \
); \
/**/
// the default exportable class identifier is the class name
// the default list of archives types for which code id generated
// are the originally included with this serialization system
#define BOOST_CLASS_EXPORT(T) \
BOOST_CLASS_EXPORT_GUID( \
T, \
BOOST_PP_STRINGIZE(T) \
) \
/**/
#endif // BOOST_SERIALIZATION_EXPORT_HPP
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