1 | #ifndef BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_HPP |
2 | #define BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_HPP |
3 | |
4 | // MS compatible compilers support #pragma once |
5 | #if defined(_MSC_VER) |
6 | # pragma once |
7 | #endif |
8 | |
9 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
10 | // extended_type_info.hpp: interface for portable version of type_info |
11 | |
12 | // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . |
13 | // Use, modification and distribution is subject to the Boost Software |
14 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
15 | // http://www.boost.org/LICENSE_1_0.txt) |
16 | |
17 | // See http://www.boost.org for updates, documentation, and revision history. |
18 | |
19 | // for now, extended type info is part of the serialization libraries |
20 | // this could change in the future. |
21 | #include <cstdarg> |
22 | #include <boost/assert.hpp> |
23 | #include <cstddef> // NULL |
24 | #include <boost/config.hpp> |
25 | #include <boost/noncopyable.hpp> |
26 | #include <boost/mpl/bool.hpp> |
27 | |
28 | #include <boost/serialization/config.hpp> |
29 | #include <boost/config/abi_prefix.hpp> // must be the last header |
30 | #ifdef BOOST_MSVC |
31 | # pragma warning(push) |
32 | # pragma warning(disable : 4251 4231 4660 4275) |
33 | #endif |
34 | |
35 | #define BOOST_SERIALIZATION_MAX_KEY_SIZE 128 |
36 | |
37 | namespace boost { |
38 | namespace serialization { |
39 | |
40 | namespace void_cast_detail{ |
41 | class void_caster; |
42 | } |
43 | |
44 | class BOOST_SYMBOL_VISIBLE extended_type_info : |
45 | private boost::noncopyable |
46 | { |
47 | private: |
48 | friend class boost::serialization::void_cast_detail::void_caster; |
49 | |
50 | // used to uniquely identify the type of class derived from this one |
51 | // so that different derivations of this class can be simultaneously |
52 | // included in implementation of sets and maps. |
53 | const unsigned int m_type_info_key; |
54 | virtual bool is_less_than(const extended_type_info & /*rhs*/) const = 0; |
55 | virtual bool is_equal(const extended_type_info & /*rhs*/) const = 0; |
56 | const char * m_key; |
57 | |
58 | protected: |
59 | BOOST_SERIALIZATION_DECL void key_unregister() const; |
60 | BOOST_SERIALIZATION_DECL void key_register() const; |
61 | // this class can't be used as is. It's just the |
62 | // common functionality for all type_info replacement |
63 | // systems. Hence, make these protected |
64 | BOOST_SERIALIZATION_DECL extended_type_info( |
65 | const unsigned int type_info_key, |
66 | const char * key |
67 | ); |
68 | virtual BOOST_SERIALIZATION_DECL ~extended_type_info(); |
69 | public: |
70 | const char * get_key() const { |
71 | return m_key; |
72 | } |
73 | virtual const char * get_debug_info() const = 0; |
74 | BOOST_SERIALIZATION_DECL bool operator<(const extended_type_info &rhs) const; |
75 | BOOST_SERIALIZATION_DECL bool operator==(const extended_type_info &rhs) const; |
76 | bool operator!=(const extended_type_info &rhs) const { |
77 | return !(operator==(rhs)); |
78 | } |
79 | // note explicit "export" of static function to work around |
80 | // gcc 4.5 mingw error |
81 | static BOOST_SERIALIZATION_DECL const extended_type_info * |
82 | find(const char *key); |
83 | // for plugins |
84 | virtual void * construct(unsigned int /*count*/ = 0, ...) const = 0; |
85 | virtual void destroy(void const * const /*p*/) const = 0; |
86 | }; |
87 | |
88 | template<class T> |
89 | struct guid_defined : boost::mpl::false_ {}; |
90 | |
91 | namespace ext { |
92 | template <typename T> |
93 | struct guid_impl |
94 | { |
95 | static inline const char * call() |
96 | { |
97 | return NULL; |
98 | } |
99 | }; |
100 | } |
101 | |
102 | template<class T> |
103 | inline const char * guid(){ |
104 | return ext::guid_impl<T>::call(); |
105 | } |
106 | |
107 | } // namespace serialization |
108 | } // namespace boost |
109 | |
110 | #ifdef BOOST_MSVC |
111 | #pragma warning(pop) |
112 | #endif |
113 | |
114 | #include <boost/config/abi_suffix.hpp> // pops abi_suffix.hpp pragmas |
115 | |
116 | #endif // BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_HPP |
117 | |