ceph/src/boost/boost/serialization/factory.hpp

   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