1 #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) 2 3 #include <boost/proto/detail/preprocessed/make_expr_.hpp> 4 5 #elif !defined(BOOST_PP_IS_ITERATING) 6 7 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) 8 #pragma wave option(preserve: 2, line: 0, output: "preprocessed/make_expr_.hpp") 9 #endif 10 11 /////////////////////////////////////////////////////////////////////////////// 12 /// \file make_expr_.hpp 13 /// Contains definition of make_expr_\<\> class template. 14 // 15 // Copyright 2008 Eric Niebler. Distributed under the Boost 16 // Software License, Version 1.0. (See accompanying file 17 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 18 19 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) 20 #pragma wave option(preserve: 1) 21 #endif 22 23 template< 24 typename Tag 25 , typename Domain 26 BOOST_PP_ENUM_TRAILING_BINARY_PARAMS( 27 BOOST_PROTO_MAX_ARITY 28 , typename A 29 , = void BOOST_PP_INTERCEPT 30 ) 31 , typename _ = void 32 > 33 struct make_expr_ 34 {}; 35 36 template<typename Domain, typename A> 37 struct make_expr_<tag::terminal, Domain, A 38 BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PROTO_MAX_ARITY, void BOOST_PP_INTERCEPT)> 39 { 40 typedef typename proto::detail::protoify<A, Domain>::result_type result_type; 41 42 BOOST_FORCEINLINE operator ()make_expr_43 result_type operator()(typename add_reference<A>::type a) const 44 { 45 return proto::detail::protoify<A, Domain>()(a); 46 } 47 }; 48 49 template<typename A> 50 struct make_expr_<tag::terminal, deduce_domain, A 51 BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PROTO_MAX_ARITY, void BOOST_PP_INTERCEPT)> 52 : make_expr_<tag::terminal, default_domain, A> 53 {}; 54 55 #define BOOST_PP_ITERATION_PARAMS_1 \ 56 (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/make_expr_.hpp>)) 57 #include BOOST_PP_ITERATE() 58 59 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) 60 #pragma wave option(output: null) 61 #endif 62 63 #else // BOOST_PP_IS_ITERATING 64 65 #define N BOOST_PP_ITERATION() 66 #define M BOOST_PP_SUB(BOOST_PROTO_MAX_ARITY, N) 67 68 template<typename Tag, typename Domain BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> 69 struct make_expr_<Tag, Domain BOOST_PP_ENUM_TRAILING_PARAMS(N, A) 70 BOOST_PP_ENUM_TRAILING_PARAMS(M, void BOOST_PP_INTERCEPT), void> 71 { 72 typedef 73 BOOST_PP_CAT(list, N)< 74 BOOST_PP_ENUM(N, BOOST_PROTO_AS_CHILD_TYPE, (A, ~, Domain)) 75 > 76 proto_args; 77 78 typedef typename base_expr<Domain, Tag, proto_args>::type expr_type; 79 typedef typename Domain::proto_generator proto_generator; 80 typedef typename proto_generator::template result<proto_generator(expr_type)>::type result_type; 81 82 BOOST_FORCEINLINE operator ()make_expr_83 result_type operator()(BOOST_PP_ENUM_BINARY_PARAMS(N, typename add_reference<A, >::type a)) const 84 { 85 expr_type const that = { 86 BOOST_PP_ENUM(N, BOOST_PROTO_AS_CHILD, (A, a, Domain)) 87 }; 88 return proto_generator()(that); 89 } 90 }; 91 92 template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> 93 struct make_expr_<Tag, deduce_domain BOOST_PP_ENUM_TRAILING_PARAMS(N, A) 94 BOOST_PP_ENUM_TRAILING_PARAMS(M, void BOOST_PP_INTERCEPT), void> 95 : make_expr_< 96 Tag 97 , typename BOOST_PP_CAT(deduce_domain, N)<BOOST_PP_ENUM_PARAMS(N, A)>::type 98 BOOST_PP_ENUM_TRAILING_PARAMS(N, A) 99 > 100 {}; 101 102 #undef N 103 #undef M 104 105 #endif 106