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