boost/serialization/extended_type_info.hpp
#ifndef BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_HPP
#define BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER)
# pragma once
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// extended_type_info.hpp: interface for portable version of type_info
// (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.
// for now, extended type info is part of the serialization libraries
// this could change in the future.
#include <cstdarg>
#include <boost/assert.hpp>
#include <cstddef> // NULL
#include <boost/config.hpp>
#include <boost/noncopyable.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/serialization/config.hpp>
#include <boost/config/abi_prefix.hpp> // must be the last header
#ifdef BOOST_MSVC
# pragma warning(push)
# pragma warning(disable : 4251 4231 4660 4275)
#endif
#define BOOST_SERIALIZATION_MAX_KEY_SIZE 128
namespace boost {
namespace serialization {
namespace void_cast_detail{
class void_caster;
}
class BOOST_SYMBOL_VISIBLE extended_type_info :
private boost::noncopyable
{
private:
friend class boost::serialization::void_cast_detail::void_caster;
// used to uniquely identify the type of class derived from this one
// so that different derivations of this class can be simultaneously
// included in implementation of sets and maps.
const unsigned int m_type_info_key;
virtual bool is_less_than(const extended_type_info & /*rhs*/) const = 0;
virtual bool is_equal(const extended_type_info & /*rhs*/) const = 0;
const char * m_key;
protected:
BOOST_SERIALIZATION_DECL void key_unregister() const;
BOOST_SERIALIZATION_DECL void key_register() const;
// this class can't be used as is. It's just the
// common functionality for all type_info replacement
// systems. Hence, make these protected
BOOST_SERIALIZATION_DECL extended_type_info(
const unsigned int type_info_key,
const char * key
);
virtual BOOST_SERIALIZATION_DECL ~extended_type_info();
public:
const char * get_key() const {
return m_key;
}
virtual const char * get_debug_info() const = 0;
BOOST_SERIALIZATION_DECL bool operator<(const extended_type_info &rhs) const;
BOOST_SERIALIZATION_DECL bool operator==(const extended_type_info &rhs) const;
bool operator!=(const extended_type_info &rhs) const {
return !(operator==(rhs));
}
// note explicit "export" of static function to work around
// gcc 4.5 mingw error
static BOOST_SERIALIZATION_DECL const extended_type_info *
find(const char *key);
// for plugins
virtual void * construct(unsigned int /*count*/ = 0, ...) const = 0;
virtual void destroy(void const * const /*p*/) const = 0;
};
template<class T>
struct guid_defined : boost::mpl::false_ {};
namespace ext {
template <typename T>
struct guid_impl
{
static inline const char * call()
{
return NULL;
}
};
}
template<class T>
inline const char * guid(){
return ext::guid_impl<T>::call();
}
} // namespace serialization
} // namespace boost
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif
#include <boost/config/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
#endif // BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_HPP