Chris@16: #ifndef BOOST_SERIALIZATION_LEVEL_HPP
Chris@16: #define BOOST_SERIALIZATION_LEVEL_HPP
Chris@16: 
Chris@16: // MS compatible compilers support #pragma once
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@16: // level.hpp:
Chris@16: 
Chris@16: // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
Chris@16: // Use, modification and distribution is subject to the Boost Software
Chris@16: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org for updates, documentation, and revision history.
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: #include <boost/detail/workaround.hpp>
Chris@16: 
Chris@16: #include <boost/type_traits/is_fundamental.hpp>
Chris@16: #include <boost/type_traits/is_enum.hpp>
Chris@16: #include <boost/type_traits/is_array.hpp>
Chris@16: #include <boost/type_traits/is_class.hpp>
Chris@16: #include <boost/type_traits/is_base_and_derived.hpp>
Chris@16: 
Chris@16: #include <boost/mpl/eval_if.hpp>
Chris@16: #include <boost/mpl/int.hpp>
Chris@16: #include <boost/mpl/integral_c.hpp>
Chris@16: #include <boost/mpl/integral_c_tag.hpp>
Chris@16: 
Chris@16: #include <boost/serialization/level_enum.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace serialization {
Chris@16: 
Chris@16: struct basic_traits;
Chris@16: 
Chris@16: // default serialization implementation level
Chris@16: template<class T>
Chris@16: struct implementation_level_impl {
Chris@16:     template<class U>
Chris@16:     struct traits_class_level {
Chris@101:         typedef typename U::level type;
Chris@16:     };
Chris@16: 
Chris@16:     typedef mpl::integral_c_tag tag;
Chris@16:     // note: at least one compiler complained w/o the full qualification
Chris@16:     // on basic traits below
Chris@16:     typedef
Chris@101:         typename mpl::eval_if<
Chris@16:             is_base_and_derived<boost::serialization::basic_traits, T>,
Chris@16:             traits_class_level< T >,
Chris@16:         //else
Chris@101:         typename mpl::eval_if<
Chris@16:             is_fundamental< T >,
Chris@16:             mpl::int_<primitive_type>,
Chris@16:         //else
Chris@101:         typename mpl::eval_if<
Chris@16:             is_class< T >,
Chris@16:             mpl::int_<object_class_info>,
Chris@16:         //else
Chris@101:         typename mpl::eval_if<
Chris@16:             is_array< T >,
Chris@16:             #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x560))
Chris@16:                 mpl::int_<not_serializable>,
Chris@16:             #else
Chris@16:                 mpl::int_<object_serializable>,
Chris@16:             #endif
Chris@16:         //else
Chris@101:         typename mpl::eval_if<
Chris@16:             is_enum< T >,
Chris@16:             //#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x560))
Chris@16:             //    mpl::int_<not_serializable>,
Chris@16:             //#else
Chris@16:                 mpl::int_<primitive_type>,
Chris@16:             //#endif
Chris@16:         //else
Chris@16:             mpl::int_<not_serializable>
Chris@16:         >
Chris@16:         >
Chris@16:         >
Chris@16:         >
Chris@16:         >::type type;
Chris@16:         // vc 7.1 doesn't like enums here
Chris@16:     BOOST_STATIC_CONSTANT(int, value = type::value);
Chris@16: };
Chris@16: 
Chris@16: template<class T>
Chris@16: struct implementation_level : 
Chris@16:     public implementation_level_impl<const T>
Chris@16: {
Chris@16: };
Chris@16: 
Chris@101: template<class T, int L>
Chris@16: inline bool operator>=(implementation_level< T > t, enum level_type l)
Chris@16: {
Chris@16:     return t.value >= (int)l;
Chris@16: }
Chris@16: 
Chris@16: } // namespace serialization
Chris@16: } // namespace boost
Chris@16: 
Chris@16: // specify the level of serialization implementation for the class
Chris@16: // require that class info saved when versioning is used
Chris@16: #define BOOST_CLASS_IMPLEMENTATION(T, E)                 \
Chris@16:     namespace boost {                                    \
Chris@16:     namespace serialization {                            \
Chris@16:     template <>                                          \
Chris@16:     struct implementation_level_impl< const T >                     \
Chris@16:     {                                                    \
Chris@16:         typedef mpl::integral_c_tag tag;                 \
Chris@16:         typedef mpl::int_< E > type;                     \
Chris@16:         BOOST_STATIC_CONSTANT(                           \
Chris@16:             int,                                         \
Chris@16:             value = implementation_level_impl::type::value    \
Chris@16:         );                                               \
Chris@16:     };                                                   \
Chris@16:     }                                                    \
Chris@16:     }
Chris@16:     /**/
Chris@16: 
Chris@16: #endif // BOOST_SERIALIZATION_LEVEL_HPP