1 /*=============================================================================
2 Copyright (c) 2001-2009 Joel de Guzman
3 Copyright (c) 2005-2006 Dan Marsden
4 Copyright (c) 2009-2010 Christopher Schmidt
6 Distributed under the Boost Software License, Version 1.0. (See accompanying
7 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
8 ==============================================================================*/
10 #ifndef BOOST_FUSION_ADAPTED_STRUCT_DETAIL_ADAPT_BASE_HPP
11 #define BOOST_FUSION_ADAPTED_STRUCT_DETAIL_ADAPT_BASE_HPP
13 #include <boost/config.hpp>
14 #include <boost/fusion/support/tag_of_fwd.hpp>
16 #include <boost/preprocessor/empty.hpp>
17 #include <boost/preprocessor/stringize.hpp>
18 #include <boost/preprocessor/control/if.hpp>
19 #include <boost/preprocessor/seq/size.hpp>
20 #include <boost/preprocessor/seq/for_each.hpp>
21 #include <boost/preprocessor/seq/for_each_i.hpp>
22 #include <boost/preprocessor/seq/enum.hpp>
23 #include <boost/preprocessor/seq/seq.hpp>
24 #include <boost/preprocessor/tuple/eat.hpp>
25 #include <boost/preprocessor/tuple/elem.hpp>
26 #include <boost/mpl/bool.hpp>
27 #include <boost/mpl/tag.hpp>
28 #include <boost/mpl/eval_if.hpp>
29 #include <boost/mpl/identity.hpp>
30 #include <boost/type_traits/add_const.hpp>
32 #define BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME_TEMPLATE_PARAMS(SEQ) \
33 BOOST_PP_SEQ_HEAD(SEQ)<BOOST_PP_SEQ_ENUM(BOOST_PP_SEQ_TAIL(SEQ))> \
36 #define BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(SEQ) \
38 BOOST_PP_SEQ_HEAD(SEQ), \
39 BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME_TEMPLATE_PARAMS, \
40 BOOST_PP_SEQ_HEAD)(BOOST_PP_SEQ_TAIL(SEQ))
42 #define BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL_C(R, _, ELEM) \
44 #define BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL(SEQ) \
46 BOOST_PP_SEQ_FOR_EACH( \
47 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL_C, \
49 BOOST_PP_SEQ_TAIL(SEQ)))
50 #define BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(SEQ) \
52 BOOST_PP_SEQ_HEAD(SEQ), \
53 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL, \
54 BOOST_PP_TUPLE_EAT(1))(SEQ)
56 #ifdef BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS
57 # define BOOST_FUSION_ADAPT_STRUCT_TAG_OF_SPECIALIZATION( \
58 MODIFIER, TEMPLATE_PARAMS_SEQ, NAME_SEQ, TAG) \
61 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
64 BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) MODIFIER \
71 # define BOOST_FUSION_ADAPT_STRUCT_TAG_OF_SPECIALIZATION( \
72 MODIFIER, TEMPLATE_PARAMS_SEQ, NAME_SEQ, TAG) \
75 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
77 struct tag_of<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) MODIFIER> \
83 #define BOOST_FUSION_ADAPT_STRUCT_BASE_UNPACK_AND_CALL(R,DATA,I,ATTRIBUTE) \
84 BOOST_PP_TUPLE_ELEM(3,0,DATA)( \
85 BOOST_PP_TUPLE_ELEM(3,1,DATA), \
86 BOOST_PP_TUPLE_ELEM(3,2,DATA), \
90 #define BOOST_FUSION_ADAPT_STRUCT_C_BASE( \
91 TEMPLATE_PARAMS_SEQ,NAME_SEQ,I,PREFIX,ATTRIBUTE,ATTRIBUTE_TUPEL_SIZE) \
94 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
96 struct struct_member<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ), I> \
98 typedef BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) type; \
100 template<typename Seq> \
105 typename mpl::eval_if< \
107 , add_const<BOOST_PP_TUPLE_ELEM( \
108 ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) \
110 , mpl::identity<BOOST_PP_TUPLE_ELEM( \
111 ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) \
120 return seq.PREFIX() \
121 BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 1, ATTRIBUTE); \
127 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
129 struct struct_member_name< \
130 BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
134 typedef char const* type; \
139 return BOOST_PP_STRINGIZE( \
140 BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,1,ATTRIBUTE)); \
144 #define BOOST_FUSION_ADAPT_STRUCT_BASE( \
145 TEMPLATE_PARAMS_SEQ, \
150 ATTRIBUTES_CALLBACK) \
158 BOOST_FUSION_ADAPT_STRUCT_TAG_OF_SPECIALIZATION( \
159 BOOST_PP_EMPTY(), TEMPLATE_PARAMS_SEQ, NAME_SEQ, TAG) \
160 BOOST_FUSION_ADAPT_STRUCT_TAG_OF_SPECIALIZATION( \
161 const, TEMPLATE_PARAMS_SEQ, NAME_SEQ, TAG) \
164 namespace extension \
166 BOOST_PP_SEQ_FOR_EACH_I_R( \
168 BOOST_FUSION_ADAPT_STRUCT_BASE_UNPACK_AND_CALL, \
169 (ATTRIBUTES_CALLBACK,TEMPLATE_PARAMS_SEQ,NAME_SEQ), \
173 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
174 TEMPLATE_PARAMS_SEQ) \
176 struct struct_size<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)> \
177 : mpl::int_<BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)> \
181 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
182 TEMPLATE_PARAMS_SEQ) \
184 struct struct_is_view< \
185 BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
187 : mpl::BOOST_PP_IF(IS_VIEW,true_,false_) \
195 struct sequence_tag; \
198 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
199 TEMPLATE_PARAMS_SEQ) \
201 struct sequence_tag<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)> \
203 typedef fusion::fusion_sequence_tag type; \
207 BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
208 TEMPLATE_PARAMS_SEQ) \
210 struct sequence_tag< \
211 BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const \
214 typedef fusion::fusion_sequence_tag type; \