define_struct.hpp 24 KB

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  1. /*=============================================================================
  2. Copyright (c) 2010-2011 Christopher Schmidt
  3. Distributed under the Boost Software License, Version 1.0. (See accompanying
  4. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  5. ==============================================================================*/
  6. #ifndef BOOST_FUSION_ADAPTED_DETAIL_STRUCT_DEFINE_STRUCT_HPP
  7. #define BOOST_FUSION_ADAPTED_DETAIL_STRUCT_DEFINE_STRUCT_HPP
  8. #include <boost/config.hpp>
  9. #include <boost/fusion/sequence/intrinsic/begin.hpp>
  10. #include <boost/fusion/iterator/deref.hpp>
  11. #include <boost/fusion/iterator/next.hpp>
  12. #include <boost/fusion/iterator/advance.hpp>
  13. #include <boost/fusion/adapted/struct/detail/adapt_base.hpp>
  14. #include <boost/fusion/adapted/struct/detail/namespace.hpp>
  15. #include <boost/preprocessor/inc.hpp>
  16. #include <boost/preprocessor/if.hpp>
  17. #include <boost/preprocessor/expr_if.hpp>
  18. #include <boost/preprocessor/dec.hpp>
  19. #include <boost/preprocessor/logical/not.hpp>
  20. #include <boost/preprocessor/punctuation/comma_if.hpp>
  21. #include <boost/preprocessor/comparison/equal.hpp>
  22. #include <boost/preprocessor/seq/seq.hpp>
  23. #include <boost/preprocessor/seq/for_each.hpp>
  24. #include <boost/preprocessor/seq/for_each_i.hpp>
  25. #include <boost/preprocessor/seq/enum.hpp>
  26. #include <boost/preprocessor/seq/size.hpp>
  27. #include <boost/preprocessor/tuple/elem.hpp>
  28. #include <boost/preprocessor/tuple/eat.hpp>
  29. #include <boost/call_traits.hpp>
  30. #include <boost/type_traits/is_convertible.hpp>
  31. #include <boost/utility/enable_if.hpp>
  32. #define BOOST_FUSION_DEFINE_STRUCT_COPY_CTOR_FILLER_I( \
  33. R, ATTRIBUTE_TUPEL_SIZE, I, ATTRIBUTE) \
  34. \
  35. BOOST_PP_COMMA_IF(I) \
  36. BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,1,ATTRIBUTE)( \
  37. other_self.BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,1,ATTRIBUTE))
  38. #define BOOST_FUSION_DEFINE_STRUCT_ASSIGN_FILLER_I( \
  39. R, ATTRIBUTE_TUPEL_SIZE, I_, ATTRIBUTE) \
  40. \
  41. BOOST_PP_EXPR_IF( \
  42. I_, \
  43. typedef typename \
  44. boost::fusion::result_of::next< \
  45. BOOST_PP_CAT(I,BOOST_PP_DEC(I_)) \
  46. >::type \
  47. BOOST_PP_CAT(I,I_); \
  48. BOOST_PP_CAT(I,I_) BOOST_PP_CAT(i,I_)= \
  49. boost::fusion::next(BOOST_PP_CAT(i,BOOST_PP_DEC(I_))); \
  50. ) \
  51. \
  52. BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,1,ATTRIBUTE)= \
  53. boost::fusion::deref(BOOST_PP_CAT(i,I_));
  54. #define BOOST_FUSION_DEFINE_STRUCT_ASSIGN_OP( \
  55. ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  56. \
  57. template<typename Seq> \
  58. self_type& \
  59. operator=(Seq const& seq) \
  60. { \
  61. typedef typename \
  62. boost::fusion::result_of::begin<Seq const>::type \
  63. I0; \
  64. I0 i0=boost::fusion::begin(seq); \
  65. \
  66. BOOST_PP_SEQ_FOR_EACH_I_R( \
  67. 1, \
  68. BOOST_FUSION_DEFINE_STRUCT_ASSIGN_FILLER_I, \
  69. ATTRIBUTE_TUPEL_SIZE, \
  70. ATTRIBUTES_SEQ) \
  71. \
  72. return *this; \
  73. }
  74. #define BOOST_FUSION_DEFINE_STRUCT_ATTR_I(R, ATTRIBUTE_TUPEL_SIZE, ATTRIBUTE) \
  75. \
  76. BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,0,ATTRIBUTE) \
  77. BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,1,ATTRIBUTE);
  78. #define BOOST_FUSION_DEFINE_STRUCT_SEQ_CTOR_FILLER_I( \
  79. R, ATTRIBUTE_TUPEL_SIZE, I, ATTRIBUTE) \
  80. \
  81. BOOST_PP_COMMA_IF(I) \
  82. BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,1,ATTRIBUTE)( \
  83. boost::fusion::deref(boost::fusion::advance_c<I>(boost::fusion::begin( \
  84. seq))))
  85. #define BOOST_FUSION_DEFINE_STRUCT_SEQ_CTOR_DISABLER( \
  86. ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  87. \
  88. , typename boost::disable_if< \
  89. boost::is_convertible< \
  90. Seq const& \
  91. , BOOST_PP_TUPLE_ELEM( \
  92. ATTRIBUTE_TUPEL_SIZE, \
  93. 0, \
  94. BOOST_PP_SEQ_HEAD(ATTRIBUTES_SEQ)) \
  95. > \
  96. >::type* =0
  97. #define BOOST_FUSION_DEFINE_STRUCT_SEQ_DEFAULT_CTOR_FILLER_I( \
  98. R, ATTRIBUTE_TUPEL_SIZE, I, ATTRIBUTE) \
  99. \
  100. BOOST_PP_COMMA_IF(I) \
  101. BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,1,ATTRIBUTE)()
  102. #define BOOST_FUSION_DEFINE_STRUCT_IMPL_IMPL( \
  103. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  104. \
  105. BOOST_PP_SEQ_FOR_EACH_R( \
  106. 1, \
  107. BOOST_FUSION_DEFINE_STRUCT_ATTR_I, \
  108. ATTRIBUTE_TUPEL_SIZE, \
  109. ATTRIBUTES_SEQ) \
  110. \
  111. NAME() \
  112. : BOOST_PP_SEQ_FOR_EACH_I_R( \
  113. 1, \
  114. BOOST_FUSION_DEFINE_STRUCT_SEQ_DEFAULT_CTOR_FILLER_I, \
  115. ATTRIBUTE_TUPEL_SIZE, \
  116. ATTRIBUTES_SEQ) \
  117. {} \
  118. \
  119. NAME(self_type const& other_self) \
  120. : BOOST_PP_SEQ_FOR_EACH_I_R( \
  121. 1, \
  122. BOOST_FUSION_DEFINE_STRUCT_COPY_CTOR_FILLER_I, \
  123. ATTRIBUTE_TUPEL_SIZE, \
  124. ATTRIBUTES_SEQ) \
  125. {} \
  126. \
  127. template<typename Seq> \
  128. NAME(Seq const& seq \
  129. BOOST_PP_IF( \
  130. BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)), \
  131. BOOST_PP_TUPLE_EAT(2), \
  132. BOOST_FUSION_DEFINE_STRUCT_SEQ_CTOR_DISABLER)( \
  133. ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  134. ) \
  135. : BOOST_PP_SEQ_FOR_EACH_I_R( \
  136. 1, \
  137. BOOST_FUSION_DEFINE_STRUCT_SEQ_CTOR_FILLER_I, \
  138. ATTRIBUTE_TUPEL_SIZE, \
  139. ATTRIBUTES_SEQ) \
  140. {} \
  141. \
  142. BOOST_FUSION_DEFINE_STRUCT_ASSIGN_OP(ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE)
  143. #define BOOST_FUSION_DEFINE_STRUCT_CTOR_1( \
  144. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  145. \
  146. explicit \
  147. NAME(boost::call_traits< \
  148. BOOST_PP_TUPLE_ELEM( \
  149. ATTRIBUTE_TUPEL_SIZE,0,BOOST_PP_SEQ_HEAD(ATTRIBUTES_SEQ)) \
  150. >::param_type arg) \
  151. : BOOST_PP_TUPLE_ELEM( \
  152. ATTRIBUTE_TUPEL_SIZE,1,BOOST_PP_SEQ_HEAD(ATTRIBUTES_SEQ))(arg) \
  153. {}
  154. #define BOOST_FUSION_DEFINE_TPL_STRUCT_CTOR_1( \
  155. TEMPLATE_PARAMS_SEQ, NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  156. \
  157. explicit \
  158. NAME(typename boost::call_traits< \
  159. typename boost::fusion::detail::get_first_arg< \
  160. BOOST_PP_TUPLE_ELEM( \
  161. ATTRIBUTE_TUPEL_SIZE, \
  162. 0, \
  163. BOOST_PP_SEQ_HEAD(ATTRIBUTES_SEQ)) \
  164. , BOOST_PP_SEQ_HEAD(TEMPLATE_PARAMS_SEQ) \
  165. >::type \
  166. >::param_type arg) \
  167. : BOOST_PP_TUPLE_ELEM( \
  168. ATTRIBUTE_TUPEL_SIZE,1,BOOST_PP_SEQ_HEAD(ATTRIBUTES_SEQ))(arg) \
  169. {}
  170. #define BOOST_FUSION_DEFINE_STRUCT_CTOR_FILLER_I( \
  171. R, ATTRIBUTE_TUPEL_SIZE, I, ATTRIBUTE) \
  172. \
  173. BOOST_PP_COMMA_IF(I) \
  174. BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,1,ATTRIBUTE)(BOOST_PP_CAT(_,I))
  175. #define BOOST_FUSION_DEFINE_TPL_STRUCT_CTOR_ARG_I(R, DATA, I, ATTRIBUTE) \
  176. \
  177. BOOST_PP_COMMA_IF(I) \
  178. typename boost::call_traits< \
  179. typename boost::fusion::detail::get_first_arg< \
  180. BOOST_PP_TUPLE_ELEM( \
  181. BOOST_PP_TUPLE_ELEM(3,0,DATA), \
  182. 0, \
  183. ATTRIBUTE) \
  184. , BOOST_PP_TUPLE_ELEM(3,2,DATA) \
  185. >::type \
  186. >::param_type BOOST_PP_CAT(_,I)
  187. #define BOOST_FUSION_DEFINE_TPL_STRUCT_CTOR_N( \
  188. TEMPLATE_PARAMS_SEQ, NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  189. \
  190. NAME(BOOST_PP_SEQ_FOR_EACH_I_R( \
  191. 1, \
  192. BOOST_FUSION_DEFINE_TPL_STRUCT_CTOR_ARG_I, \
  193. ( \
  194. ATTRIBUTE_TUPEL_SIZE, \
  195. BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ), \
  196. BOOST_PP_SEQ_HEAD(TEMPLATE_PARAMS_SEQ) \
  197. ), \
  198. ATTRIBUTES_SEQ)) \
  199. : BOOST_PP_SEQ_FOR_EACH_I_R( \
  200. 1, \
  201. BOOST_FUSION_DEFINE_STRUCT_CTOR_FILLER_I, \
  202. ATTRIBUTE_TUPEL_SIZE, \
  203. ATTRIBUTES_SEQ) \
  204. {}
  205. #define BOOST_FUSION_DEFINE_STRUCT_CTOR_ARG_I( \
  206. R, ATTRIBUTE_TUPEL_SIZE, I, ATTRIBUTE) \
  207. \
  208. BOOST_PP_COMMA_IF(I) \
  209. boost::call_traits< \
  210. BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE,0,ATTRIBUTE) \
  211. >::param_type BOOST_PP_CAT(_,I)
  212. #define BOOST_FUSION_DEFINE_STRUCT_CTOR_N( \
  213. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  214. \
  215. NAME(BOOST_PP_SEQ_FOR_EACH_I_R( \
  216. 1, \
  217. BOOST_FUSION_DEFINE_STRUCT_CTOR_ARG_I, \
  218. ATTRIBUTE_TUPEL_SIZE, \
  219. ATTRIBUTES_SEQ)) \
  220. : BOOST_PP_SEQ_FOR_EACH_I_R( \
  221. 1, \
  222. BOOST_FUSION_DEFINE_STRUCT_CTOR_FILLER_I, \
  223. ATTRIBUTE_TUPEL_SIZE, \
  224. ATTRIBUTES_SEQ) \
  225. {}
  226. #define BOOST_FUSION_DEFINE_STRUCT_CTOR( \
  227. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  228. \
  229. BOOST_PP_IF(BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)), \
  230. BOOST_FUSION_DEFINE_STRUCT_CTOR_N, \
  231. BOOST_FUSION_DEFINE_STRUCT_CTOR_1)( \
  232. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE)
  233. #define BOOST_FUSION_DEFINE_TPL_STRUCT_CTOR( \
  234. TEMPLATE_PARAMS_SEQ, NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  235. \
  236. BOOST_PP_IF(BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)), \
  237. BOOST_FUSION_DEFINE_TPL_STRUCT_CTOR_N, \
  238. BOOST_FUSION_DEFINE_TPL_STRUCT_CTOR_1)( \
  239. TEMPLATE_PARAMS_SEQ, NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE)
  240. #define BOOST_FUSION_DEFINE_NONEMPTY_STRUCT_IMPL( \
  241. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  242. \
  243. BOOST_FUSION_DEFINE_STRUCT_IMPL_IMPL( \
  244. NAME, BOOST_PP_SEQ_TAIL(ATTRIBUTES_SEQ), ATTRIBUTE_TUPEL_SIZE) \
  245. \
  246. BOOST_FUSION_DEFINE_STRUCT_CTOR( \
  247. NAME, BOOST_PP_SEQ_TAIL(ATTRIBUTES_SEQ), ATTRIBUTE_TUPEL_SIZE)
  248. #define BOOST_FUSION_DEFINE_EMPTY_STRUCT_IMPL( \
  249. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  250. \
  251. template<typename Seq> \
  252. NAME(Seq const&) \
  253. {} \
  254. \
  255. template<typename Seq> \
  256. self_type& \
  257. operator=(Seq const& seq) \
  258. { \
  259. return *this; \
  260. }
  261. #define BOOST_FUSION_DEFINE_STRUCT_IMPL( \
  262. NAMESPACE_SEQ, NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  263. \
  264. BOOST_FUSION_ADAPT_STRUCT_NAMESPACE_DEFINITION_BEGIN(NAMESPACE_SEQ) \
  265. \
  266. struct NAME \
  267. { \
  268. typedef NAME self_type; \
  269. \
  270. BOOST_PP_IF(BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)), \
  271. BOOST_FUSION_DEFINE_NONEMPTY_STRUCT_IMPL, \
  272. BOOST_FUSION_DEFINE_EMPTY_STRUCT_IMPL)( \
  273. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  274. }; \
  275. \
  276. BOOST_FUSION_ADAPT_STRUCT_NAMESPACE_DEFINITION_END(NAMESPACE_SEQ)
  277. #define BOOST_FUSION_DEFINE_NONEMPTY_TPL_STRUCT_IMPL( \
  278. TEMPLATE_PARAMS_SEQ, NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  279. \
  280. BOOST_FUSION_DEFINE_STRUCT_IMPL_IMPL( \
  281. NAME, BOOST_PP_SEQ_TAIL(ATTRIBUTES_SEQ), ATTRIBUTE_TUPEL_SIZE) \
  282. \
  283. BOOST_FUSION_DEFINE_TPL_STRUCT_CTOR( \
  284. TEMPLATE_PARAMS_SEQ, \
  285. NAME, \
  286. BOOST_PP_SEQ_TAIL(ATTRIBUTES_SEQ), \
  287. ATTRIBUTE_TUPEL_SIZE)
  288. #define BOOST_FUSION_DEFINE_EMPTY_TPL_STRUCT_IMPL( \
  289. TEMPLATE_PARAMS_SEQ, NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE) \
  290. \
  291. BOOST_FUSION_DEFINE_EMPTY_STRUCT_IMPL( \
  292. NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE)
  293. #define BOOST_FUSION_DEFINE_TPL_STRUCT_IMPL( \
  294. TEMPLATE_PARAMS_SEQ, \
  295. NAMESPACE_SEQ, \
  296. NAME, \
  297. ATTRIBUTES_SEQ, \
  298. ATTRIBUTE_TUPEL_SIZE) \
  299. \
  300. BOOST_FUSION_ADAPT_STRUCT_NAMESPACE_DEFINITION_BEGIN(NAMESPACE_SEQ) \
  301. \
  302. template< \
  303. BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL( \
  304. (0)TEMPLATE_PARAMS_SEQ) \
  305. > \
  306. struct NAME \
  307. { \
  308. typedef NAME self_type; \
  309. \
  310. BOOST_PP_IF(BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)), \
  311. BOOST_FUSION_DEFINE_NONEMPTY_TPL_STRUCT_IMPL, \
  312. BOOST_FUSION_DEFINE_EMPTY_TPL_STRUCT_IMPL)( \
  313. TEMPLATE_PARAMS_SEQ, NAME, ATTRIBUTES_SEQ, ATTRIBUTE_TUPEL_SIZE)\
  314. }; \
  315. \
  316. BOOST_FUSION_ADAPT_STRUCT_NAMESPACE_DEFINITION_END(NAMESPACE_SEQ)
  317. namespace boost { namespace fusion { namespace detail
  318. {
  319. template<typename A1, typename A2>
  320. struct get_first_arg
  321. {
  322. typedef A1 type;
  323. };
  324. }}}
  325. #endif