struct/detail/adapt_base_assoc_attr_filler.hpp

0001 /*=============================================================================
0002     Copyright (c) 2013-2014 Damien Buhl
0003
0004     Distributed under the Boost Software License, Version 1.0. (See accompanying
0005     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 ==============================================================================*/
0007
0008 #ifndef BOOST_FUSION_ADAPTED_STRUCT_DETAIL_ADAPT_BASE_ASSOC_ATTR_FILLER_HPP
0009 #define BOOST_FUSION_ADAPTED_STRUCT_DETAIL_ADAPT_BASE_ASSOC_ATTR_FILLER_HPP
0010
0011 #include <boost/config.hpp>
0012
0013 #include <boost/fusion/adapted/struct/detail/adapt_auto.hpp>
0014 #include <boost/fusion/adapted/struct/detail/adapt_base_attr_filler.hpp>
0015
0016 #include <boost/mpl/aux_/preprocessor/token_equal.hpp>
0017
0018 #include <boost/preprocessor/config/config.hpp>
0019 #include <boost/preprocessor/control/iif.hpp>
0020 #include <boost/preprocessor/arithmetic/dec.hpp>
0021 #include <boost/preprocessor/variadic/size.hpp>
0022 #include <boost/preprocessor/variadic/elem.hpp>
0023
0024 #if BOOST_PP_VARIADICS
0025
0026 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_0(...)                           \
0027     BOOST_FUSION_ADAPT_ASSOC_STRUCT_WRAP_ATTR(__VA_ARGS__)                      \
0028     BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_1
0029
0030 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_1(...)                           \
0031     BOOST_FUSION_ADAPT_ASSOC_STRUCT_WRAP_ATTR(__VA_ARGS__)                      \
0032     BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_0
0033
0034 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_WRAP_ATTR(...)                          \
0035   BOOST_PP_IIF(                                                                 \
0036       BOOST_MPL_PP_TOKEN_EQUAL(auto, BOOST_PP_VARIADIC_ELEM(0, __VA_ARGS__)),   \
0037       ((2,                                                                      \
0038           (BOOST_PP_VARIADIC_ELEM(1, __VA_ARGS__),                              \
0039            BOOST_PP_VARIADIC_ELEM(2, __VA_ARGS__)))),                           \
0040       ((BOOST_PP_VARIADIC_SIZE(__VA_ARGS__),                                    \
0041           (__VA_ARGS__)))                                                       \
0042     )
0043
0044 #else // BOOST_PP_VARIADICS
0045
0046
0047 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_0(X, Y, Z)                       \
0048     BOOST_FUSION_ADAPT_ASSOC_STRUCT_WRAP_ATTR(X, Y, Z)                          \
0049     BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_1
0050
0051 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_1(X, Y, Z)                       \
0052     BOOST_FUSION_ADAPT_ASSOC_STRUCT_WRAP_ATTR(X, Y, Z)                          \
0053     BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_0
0054
0055 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_WRAP_ATTR(X, Y, Z)                      \
0056     BOOST_PP_IIF(BOOST_MPL_PP_TOKEN_EQUAL(auto, X),                             \
0057       ((2, (Y,Z))),                                                             \
0058       ((3, (X,Y,Z)))                                                            \
0059     )
0060
0061 #endif // BOOST_PP_VARIADICS
0062
0063 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_0_END
0064 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_FILLER_1_END
0065
0066
0067 #define BOOST_FUSION_ADAPT_ASSOC_STRUCT_WRAPPEDATTR_GET_KEY(ATTRIBUTE)          \
0068     BOOST_PP_TUPLE_ELEM(                                                        \
0069         BOOST_FUSION_ADAPT_STRUCT_WRAPPEDATTR_SIZE(ATTRIBUTE),                  \
0070         BOOST_PP_DEC(BOOST_FUSION_ADAPT_STRUCT_WRAPPEDATTR_SIZE(ATTRIBUTE)),    \
0071         BOOST_FUSION_ADAPT_STRUCT_WRAPPEDATTR(ATTRIBUTE))
0072
0073 #endif