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1 | #ifndef BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_TYPEID_HPP |
2 | #define BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_TYPEID_HPP | |
3 | ||
4 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 | |
5 | // MS compatible compilers support #pragma once | |
6 | #if defined(_MSC_VER) | |
7 | # pragma once | |
8 | #endif | |
9 | ||
10 | // extended_type_info_typeid.hpp: implementation for version that depends | |
11 | // on runtime typing (rtti - typeid) but uses a user specified string | |
12 | // as the portable class identifier. | |
13 | ||
14 | // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . | |
15 | // Use, modification and distribution is subject to the Boost Software | |
16 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
17 | // http://www.boost.org/LICENSE_1_0.txt) | |
18 | ||
19 | // See http://www.boost.org for updates, documentation, and revision history. | |
20 | ||
21 | #include <typeinfo> | |
22 | #include <cstdarg> | |
23 | #include <boost/assert.hpp> | |
24 | #include <boost/config.hpp> | |
25 | ||
26 | #include <boost/static_assert.hpp> | |
27 | #include <boost/serialization/static_warning.hpp> | |
28 | #include <boost/type_traits/is_polymorphic.hpp> | |
29 | #include <boost/type_traits/remove_const.hpp> | |
30 | ||
31 | #include <boost/serialization/config.hpp> | |
32 | #include <boost/serialization/singleton.hpp> | |
33 | #include <boost/serialization/extended_type_info.hpp> | |
34 | #include <boost/serialization/factory.hpp> | |
35 | ||
36 | // hijack serialization access | |
37 | #include <boost/serialization/access.hpp> | |
38 | ||
39 | #include <boost/mpl/if.hpp> | |
40 | ||
41 | #include <boost/config/abi_prefix.hpp> // must be the last header | |
42 | ||
43 | #ifdef BOOST_MSVC | |
44 | # pragma warning(push) | |
45 | # pragma warning(disable : 4251 4231 4660 4275 4511 4512) | |
46 | #endif | |
47 | ||
48 | namespace boost { | |
49 | namespace serialization { | |
50 | namespace typeid_system { | |
51 | ||
52 | class BOOST_SYMBOL_VISIBLE extended_type_info_typeid_0 : | |
53 | public extended_type_info | |
54 | { | |
55 | virtual const char * get_debug_info() const { | |
56 | if(static_cast<const std::type_info *>(0) == m_ti) | |
57 | return static_cast<const char *>(0); | |
58 | return m_ti->name(); | |
59 | } | |
60 | protected: | |
61 | const std::type_info * m_ti; | |
62 | BOOST_SERIALIZATION_DECL extended_type_info_typeid_0(const char * key); | |
63 | BOOST_SERIALIZATION_DECL ~extended_type_info_typeid_0(); | |
64 | BOOST_SERIALIZATION_DECL void type_register(const std::type_info & ti); | |
65 | BOOST_SERIALIZATION_DECL void type_unregister(); | |
66 | BOOST_SERIALIZATION_DECL const extended_type_info * | |
67 | get_extended_type_info(const std::type_info & ti) const; | |
68 | public: | |
69 | virtual BOOST_SERIALIZATION_DECL bool | |
70 | is_less_than(const extended_type_info &rhs) const; | |
71 | virtual BOOST_SERIALIZATION_DECL bool | |
72 | is_equal(const extended_type_info &rhs) const; | |
73 | const std::type_info & get_typeid() const { | |
74 | return *m_ti; | |
75 | } | |
76 | }; | |
77 | ||
78 | } // typeid_system | |
79 | ||
80 | template<class T> | |
81 | class extended_type_info_typeid : | |
82 | public typeid_system::extended_type_info_typeid_0, | |
83 | public singleton<extended_type_info_typeid< T > > | |
84 | { | |
85 | public: | |
86 | extended_type_info_typeid() : | |
87 | typeid_system::extended_type_info_typeid_0( | |
88 | boost::serialization::guid< T >() | |
89 | ) | |
90 | { | |
91 | type_register(typeid(T)); | |
92 | key_register(); | |
93 | } | |
94 | ~extended_type_info_typeid(){ | |
95 | key_unregister(); | |
96 | type_unregister(); | |
97 | } | |
98 | // get the eti record for the true type of this record | |
99 | // relying upon standard type info implemenation (rtti) | |
100 | const extended_type_info * | |
101 | get_derived_extended_type_info(const T & t) const { | |
102 | // note: this implementation - based on usage of typeid (rtti) | |
103 | // only does something if the class has at least one virtual function. | |
104 | BOOST_STATIC_WARNING(boost::is_polymorphic< T >::value); | |
105 | return | |
106 | typeid_system::extended_type_info_typeid_0::get_extended_type_info( | |
107 | typeid(t) | |
108 | ); | |
109 | } | |
110 | const char * get_key() const { | |
111 | return boost::serialization::guid< T >(); | |
112 | } | |
113 | virtual void * construct(unsigned int count, ...) const{ | |
114 | // count up the arguments | |
115 | std::va_list ap; | |
116 | va_start(ap, count); | |
117 | switch(count){ | |
118 | case 0: | |
119 | return factory<typename boost::remove_const< T >::type, 0>(ap); | |
120 | case 1: | |
121 | return factory<typename boost::remove_const< T >::type, 1>(ap); | |
122 | case 2: | |
123 | return factory<typename boost::remove_const< T >::type, 2>(ap); | |
124 | case 3: | |
125 | return factory<typename boost::remove_const< T >::type, 3>(ap); | |
126 | case 4: | |
127 | return factory<typename boost::remove_const< T >::type, 4>(ap); | |
128 | default: | |
129 | BOOST_ASSERT(false); // too many arguments | |
130 | // throw exception here? | |
131 | return NULL; | |
132 | } | |
133 | } | |
134 | virtual void destroy(void const * const p) const { | |
135 | boost::serialization::access::destroy( | |
136 | static_cast<T const *>(p) | |
137 | ); | |
138 | //delete static_cast<T const * const>(p); | |
139 | } | |
140 | }; | |
141 | ||
142 | } // namespace serialization | |
143 | } // namespace boost | |
144 | ||
145 | /////////////////////////////////////////////////////////////////////////////// | |
146 | // If no other implementation has been designated as default, | |
147 | // use this one. To use this implementation as the default, specify it | |
148 | // before any of the other headers. | |
149 | #ifndef BOOST_SERIALIZATION_DEFAULT_TYPE_INFO | |
150 | #define BOOST_SERIALIZATION_DEFAULT_TYPE_INFO | |
151 | namespace boost { | |
152 | namespace serialization { | |
153 | template<class T> | |
154 | struct extended_type_info_impl { | |
155 | typedef typename | |
156 | boost::serialization::extended_type_info_typeid< T > type; | |
157 | }; | |
158 | } // namespace serialization | |
159 | } // namespace boost | |
160 | #endif | |
161 | ||
162 | #ifdef BOOST_MSVC | |
163 | #pragma warning(pop) | |
164 | #endif | |
165 | #include <boost/config/abi_suffix.hpp> // pops abi_suffix.hpp pragmas | |
166 | ||
167 | #endif // BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_TYPEID_HPP |