[857] | 1 | #ifndef BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_TYPEID_HPP
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| 2 | #define BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_TYPEID_HPP
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| 3 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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| 4 | // MS compatible compilers support #pragma once
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| 5 | #if defined(_MSC_VER) && (_MSC_VER >= 1020)
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| 6 | # pragma once
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| 7 | #endif
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| 8 |
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| 9 | // extended_type_info_typeid.hpp: implementation for version that depends
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| 10 | // on runtime typing (rtti - typeid) but uses a user specified string
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| 11 | // as the portable class identifier.
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| 12 |
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| 13 | // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
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| 14 | // Use, modification and distribution is subject to the Boost Software
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| 15 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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| 16 | // http://www.boost.org/LICENSE_1_0.txt)
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| 17 |
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| 18 | // See http://www.boost.org for updates, documentation, and revision history.
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| 19 |
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| 20 | #include <typeinfo>
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| 21 | #include <boost/config.hpp>
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| 22 |
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| 23 | //#include <boost/static_warning.hpp>
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| 24 | #include <boost/static_assert.hpp>
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| 25 | #include <boost/type_traits/is_polymorphic.hpp>
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| 26 | #include <boost/type_traits/is_const.hpp>
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| 27 | #include <boost/preprocessor/stringize.hpp>
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| 28 |
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| 29 | #include <boost/serialization/extended_type_info.hpp>
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| 30 |
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| 31 | #include <boost/config/abi_prefix.hpp> // must be the last header
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| 32 | #ifdef BOOST_MSVC
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| 33 | # pragma warning(push)
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| 34 | # pragma warning(disable : 4251 4231 4660 4275)
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| 35 | #endif
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| 36 |
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| 37 | namespace boost {
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| 38 | namespace serialization {
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| 39 |
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| 40 | namespace detail {
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| 41 |
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| 42 | class BOOST_SERIALIZATION_DECL(BOOST_PP_EMPTY()) extended_type_info_typeid_0 :
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| 43 | public extended_type_info
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| 44 | {
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| 45 | private:
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| 46 | virtual bool
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| 47 | less_than(const extended_type_info &rhs) const;
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| 48 | protected:
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| 49 | static const extended_type_info *
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| 50 | get_derived_extended_type_info(const std::type_info & ti);
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| 51 | extended_type_info_typeid_0();
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| 52 | // account for bogus gcc warning
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| 53 | #if defined(__GNUC__)
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| 54 | virtual
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| 55 | #endif
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| 56 | ~extended_type_info_typeid_0();
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| 57 | public:
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| 58 | virtual const std::type_info & get_eti() const = 0;
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| 59 | };
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| 60 |
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| 61 | ///////////////////////////////////////////////////////////////////////////////
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| 62 | // layer to fold T and const T into the same table entry.
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| 63 | template<class T>
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| 64 | class extended_type_info_typeid_1 :
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| 65 | public detail::extended_type_info_typeid_0
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| 66 | {
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| 67 | private:
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| 68 | virtual const std::type_info & get_eti() const {
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| 69 | return typeid(T);
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| 70 | }
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| 71 | protected:
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| 72 | // private constructor to inhibit any existence other than the
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| 73 | // static one
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| 74 | extended_type_info_typeid_1() :
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| 75 | detail::extended_type_info_typeid_0()
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| 76 | {
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| 77 | self_register(); // add type to type table
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| 78 | }
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| 79 | public:
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| 80 | struct is_polymorphic
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| 81 | {
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| 82 | typedef BOOST_DEDUCED_TYPENAME boost::is_polymorphic<T>::type type;
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| 83 | BOOST_STATIC_CONSTANT(bool, value = is_polymorphic::type::value);
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| 84 | };
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| 85 | static const extended_type_info *
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| 86 | get_derived_extended_type_info(const T & t){
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| 87 | // note: this implementation - based on usage of typeid (rtti)
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| 88 | // only works if the class has at least one virtual function.
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| 89 | // BOOST_STATIC_WARNING(
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| 90 | // static_cast<bool>(is_polymorphic::value)
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| 91 | // );
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| 92 | return detail::extended_type_info_typeid_0::get_derived_extended_type_info(typeid(t));
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| 93 | }
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| 94 | static extended_type_info *
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| 95 | get_instance(){
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| 96 | static extended_type_info_typeid_1<T> instance;
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| 97 | return & instance;
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| 98 | }
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| 99 | static void
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| 100 | export_register(const char * key){
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| 101 | get_instance()->key_register(key);
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| 102 | }
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| 103 | };
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| 104 |
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| 105 | } // namespace detail
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| 106 |
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| 107 | ///////////////////////////////////////////////////////////////////////////////
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| 108 | template<class T>
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| 109 | class extended_type_info_typeid :
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| 110 | public detail::extended_type_info_typeid_1<const T>
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| 111 | {};
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| 112 |
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| 113 | } // namespace serialization
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| 114 | } // namespace boost
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| 115 |
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| 116 | ///////////////////////////////////////////////////////////////////////////////
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| 117 | // If no other implementation has been designated as default,
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| 118 | // use this one. To use this implementation as the default, specify it
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| 119 | // before any of the other headers.
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| 120 |
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| 121 | #ifndef BOOST_SERIALIZATION_DEFAULT_TYPE_INFO
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| 122 | #define BOOST_SERIALIZATION_DEFAULT_TYPE_INFO(T) \
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| 123 | extended_type_info_typeid<const T>
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| 124 | /**/
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| 125 | #endif
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| 126 |
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| 127 | #ifdef BOOST_MSVC
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| 128 | #pragma warning(pop)
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| 129 | #endif
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| 130 | #include <boost/config/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
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| 131 |
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| 132 | #endif // BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_TYPEID_HPP
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