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103 lines
3.5 KiB
103 lines
3.5 KiB
#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
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#include <boost/proto/detail/preprocessed/make_expr_.hpp> |
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#elif !defined(BOOST_PP_IS_ITERATING) |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(preserve: 2, line: 0, output: "preprocessed/make_expr_.hpp") |
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#endif |
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/////////////////////////////////////////////////////////////////////////////// |
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/// \file make_expr_.hpp |
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/// Contains definition of make_expr_\<\> class template. |
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// |
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// Copyright 2008 Eric Niebler. Distributed under the Boost |
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// Software License, Version 1.0. (See accompanying file |
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(preserve: 1) |
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#endif |
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template< |
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typename Tag |
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, typename Domain |
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BOOST_PP_ENUM_TRAILING_BINARY_PARAMS( |
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BOOST_PROTO_MAX_ARITY |
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, typename A |
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, = void BOOST_PP_INTERCEPT |
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) |
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, typename _ = void |
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> |
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struct make_expr_ |
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{}; |
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template<typename Domain, typename A> |
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struct make_expr_<tag::terminal, Domain, A |
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BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PROTO_MAX_ARITY, void BOOST_PP_INTERCEPT)> |
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{ |
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typedef typename proto::detail::protoify<A, Domain>::result_type result_type; |
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result_type operator()(typename add_reference<A>::type a) const |
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{ |
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return proto::detail::protoify<A, Domain>()(a); |
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} |
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}; |
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template<typename A> |
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struct make_expr_<tag::terminal, deduce_domain, A |
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BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PROTO_MAX_ARITY, void BOOST_PP_INTERCEPT)> |
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: make_expr_<tag::terminal, default_domain, A> |
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{}; |
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#define BOOST_PP_ITERATION_PARAMS_1 \ |
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(3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/make_expr_.hpp>)) |
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#include BOOST_PP_ITERATE() |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(output: null) |
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#endif |
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#else // BOOST_PP_IS_ITERATING |
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#define N BOOST_PP_ITERATION() |
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#define M BOOST_PP_SUB(BOOST_PROTO_MAX_ARITY, N) |
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template<typename Tag, typename Domain BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> |
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struct make_expr_<Tag, Domain BOOST_PP_ENUM_TRAILING_PARAMS(N, A) |
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BOOST_PP_ENUM_TRAILING_PARAMS(M, void BOOST_PP_INTERCEPT), void> |
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{ |
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typedef |
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BOOST_PP_CAT(list, N)< |
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BOOST_PP_ENUM(N, BOOST_PROTO_AS_CHILD_TYPE, (A, ~, Domain)) |
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> |
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proto_args; |
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typedef typename base_expr<Domain, Tag, proto_args>::type expr_type; |
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typedef typename Domain::proto_generator proto_generator; |
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typedef typename proto_generator::template result<proto_generator(expr_type)>::type result_type; |
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result_type operator()(BOOST_PP_ENUM_BINARY_PARAMS(N, typename add_reference<A, >::type a)) const |
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{ |
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expr_type const that = { |
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BOOST_PP_ENUM(N, BOOST_PROTO_AS_CHILD, (A, a, Domain)) |
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}; |
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return proto_generator()(that); |
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} |
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}; |
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template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> |
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struct make_expr_<Tag, deduce_domain BOOST_PP_ENUM_TRAILING_PARAMS(N, A) |
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BOOST_PP_ENUM_TRAILING_PARAMS(M, void BOOST_PP_INTERCEPT), void> |
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: make_expr_< |
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Tag |
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, typename BOOST_PP_CAT(deduce_domain, N)<BOOST_PP_ENUM_PARAMS(N, A)>::type |
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BOOST_PP_ENUM_TRAILING_PARAMS(N, A) |
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> |
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{}; |
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#undef N |
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#undef M |
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#endif
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