1 #ifndef BOOST_SERIALIZATION_FACTORY_HPP 2 #define BOOST_SERIALIZATION_FACTORY_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 // factory.hpp: create an instance from an extended_type_info instance. 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 #include <cstdarg> // valist 20 #include <cstddef> // NULL 21 22 #include <boost/preprocessor/control/if.hpp> 23 #include <boost/preprocessor/comparison/greater.hpp> 24 #include <boost/assert.hpp> 25 26 namespace std{ 27 #if defined(__LIBCOMO__) 28 using ::va_list; 29 #endif 30 } // namespace std 31 32 namespace boost { 33 namespace serialization { 34 35 // default implementation does nothing. 36 template<class T, int N> 37 T * factory(std::va_list){ 38 BOOST_ASSERT(false); 39 // throw exception here? 40 return NULL; 41 } 42 43 } // namespace serialization 44 } // namespace boost 45 46 #define BOOST_SERIALIZATION_FACTORY(N, T, A0, A1, A2, A3) \ 47 namespace boost { \ 48 namespace serialization { \ 49 template<> \ 50 T * factory<T, N>(std::va_list ap){ \ 51 BOOST_PP_IF(BOOST_PP_GREATER(N, 0) \ 52 , A0 a0 = va_arg(ap, A0);, BOOST_PP_EMPTY()) \ 53 BOOST_PP_IF(BOOST_PP_GREATER(N, 1) \ 54 , A1 a1 = va_arg(ap, A1);, BOOST_PP_EMPTY()) \ 55 BOOST_PP_IF(BOOST_PP_GREATER(N, 2) \ 56 , A2 a2 = va_arg(ap, A2);, BOOST_PP_EMPTY()) \ 57 BOOST_PP_IF(BOOST_PP_GREATER(N, 3) \ 58 , A3 a3 = va_arg(ap, A3);, BOOST_PP_EMPTY()) \ 59 return new T( \ 60 BOOST_PP_IF(BOOST_PP_GREATER(N, 0) \ 61 , a0, BOOST_PP_EMPTY()) \ 62 BOOST_PP_IF(BOOST_PP_GREATER(N, 1)) \ 63 , BOOST_PP_COMMA, BOOST_PP_EMPTY)() \ 64 BOOST_PP_IF(BOOST_PP_GREATER(N, 1) \ 65 , a1, BOOST_PP_EMPTY()) \ 66 BOOST_PP_IF(BOOST_PP_GREATER(N, 2)) \ 67 , BOOST_PP_COMMA, BOOST_PP_EMPTY)() \ 68 BOOST_PP_IF(BOOST_PP_GREATER(N, 2) \ 69 , a2, BOOST_PP_EMPTY()) \ 70 BOOST_PP_IF(BOOST_PP_GREATER(N, 3)) \ 71 , BOOST_PP_COMMA, BOOST_PP_EMPTY)() \ 72 BOOST_PP_IF(BOOST_PP_GREATER(N, 3) \ 73 , a3, BOOST_PP_EMPTY()) \ 74 ); \ 75 } \ 76 } \ 77 } /**/ 78 79 #define BOOST_SERIALIZATION_FACTORY_4(T, A0, A1, A2, A3) \ 80 BOOST_SERIALIZATION_FACTORY(4, T, A0, A1, A2, A3) 81 82 #define BOOST_SERIALIZATION_FACTORY_3(T, A0, A1, A2) \ 83 BOOST_SERIALIZATION_FACTORY(3, T, A0, A1, A2, 0) 84 85 #define BOOST_SERIALIZATION_FACTORY_2(T, A0, A1) \ 86 BOOST_SERIALIZATION_FACTORY(2, T, A0, A1, 0, 0) 87 88 #define BOOST_SERIALIZATION_FACTORY_1(T, A0) \ 89 BOOST_SERIALIZATION_FACTORY(1, T, A0, 0, 0, 0) 90 91 #define BOOST_SERIALIZATION_FACTORY_0(T) \ 92 namespace boost { \ 93 namespace serialization { \ 94 template<> \ 95 T * factory<T, 0>(std::va_list){ \ 96 return new T(); \ 97 } \ 98 } \ 99 } \ 100 /**/ 101 102 #endif // BOOST_SERIALIZATION_FACTORY_HPP 103