| #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
| |
| #include <boost/proto/transform/detail/preprocessed/make.hpp> |
| |
| #elif !defined(BOOST_PP_IS_ITERATING) |
| |
| #define BOOST_PROTO_MAKE_IF(Z, M, DATA) \ |
| make_if_<BOOST_PP_CAT(A, M), Expr, State, Data> \ |
| /**/ |
| |
| #define BOOST_PROTO_MAKE_IF_TYPE(Z, M, DATA) \ |
| typename BOOST_PROTO_MAKE_IF(Z, M, DATA) ::type \ |
| /**/ |
| |
| #define BOOST_PROTO_MAKE_IF_APPLIED(Z, M, DATA) \ |
| BOOST_PROTO_MAKE_IF(Z, M, DATA) ::applied || \ |
| /**/ |
| |
| #define BOOST_PROTO_CONSTRUCT_ARG(Z, M, DATA) \ |
| detail::as_lvalue( \ |
| typename when<_, BOOST_PP_CAT(A, M)>::template impl<Expr, State, Data>()(e, s, d) \ |
| ) \ |
| /**/ |
| |
| #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
| #pragma wave option(preserve: 2, line: 0, output: "preprocessed/make.hpp") |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /// \file make.hpp |
| /// Contains definition of the make<> transform. |
| // |
| // Copyright 2008 Eric Niebler. Distributed under the Boost |
| // Software License, Version 1.0. (See accompanying file |
| // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
| #pragma wave option(preserve: 1) |
| #endif |
| |
| #define BOOST_PP_ITERATION_PARAMS_1 \ |
| (3, (0, BOOST_PROTO_MAX_ARITY, <boost/proto/transform/detail/make.hpp>)) |
| #include BOOST_PP_ITERATE() |
| |
| #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
| #pragma wave option(output: null) |
| #endif |
| |
| #undef BOOST_PROTO_CONSTRUCT_ARG |
| #undef BOOST_PROTO_MAKE_IF_APPLIED |
| #undef BOOST_PROTO_MAKE_IF_TYPE |
| #undef BOOST_PROTO_MAKE_IF |
| |
| #else |
| |
| #define N BOOST_PP_ITERATION() |
| |
| namespace detail |
| { |
| #if N > 0 |
| |
| template< |
| template<BOOST_PP_ENUM_PARAMS(N, typename BOOST_PP_INTERCEPT)> class R |
| BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A) |
| , typename Expr, typename State, typename Data |
| > |
| struct make_< |
| R<BOOST_PP_ENUM_PARAMS(N, A)> |
| , Expr, State, Data |
| BOOST_PROTO_TEMPLATE_ARITY_PARAM(N) |
| > |
| : nested_type_if< |
| R<BOOST_PP_ENUM(N, BOOST_PROTO_MAKE_IF_TYPE, ~)> |
| , (BOOST_PP_REPEAT(N, BOOST_PROTO_MAKE_IF_APPLIED, ~) false) |
| > |
| {}; |
| |
| template< |
| template<BOOST_PP_ENUM_PARAMS(N, typename BOOST_PP_INTERCEPT)> class R |
| BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A) |
| , typename Expr, typename State, typename Data |
| > |
| struct make_< |
| noinvoke<R<BOOST_PP_ENUM_PARAMS(N, A)> > |
| , Expr, State, Data |
| BOOST_PROTO_TEMPLATE_ARITY_PARAM(1) |
| > |
| { |
| typedef R<BOOST_PP_ENUM(N, BOOST_PROTO_MAKE_IF_TYPE, ~)> type; |
| static bool const applied = true; |
| }; |
| |
| #endif |
| |
| template<typename R BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> |
| struct is_applyable<R(BOOST_PP_ENUM_PARAMS(N, A))> |
| : mpl::true_ |
| {}; |
| |
| template<typename R BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> |
| struct is_applyable<R(*)(BOOST_PP_ENUM_PARAMS(N, A))> |
| : mpl::true_ |
| {}; |
| |
| template<typename T, typename A> |
| struct construct_<proto::expr<T, A, N>, true> |
| { |
| typedef proto::expr<T, A, N> result_type; |
| |
| template<BOOST_PP_ENUM_PARAMS(BOOST_PP_MAX(N, 1), typename A)> |
| BOOST_FORCEINLINE |
| result_type operator ()(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_MAX(N, 1), A, &a)) const |
| { |
| return result_type::make(BOOST_PP_ENUM_PARAMS(BOOST_PP_MAX(N, 1), a)); |
| } |
| }; |
| |
| template<typename T, typename A> |
| struct construct_<proto::basic_expr<T, A, N>, true> |
| { |
| typedef proto::basic_expr<T, A, N> result_type; |
| |
| template<BOOST_PP_ENUM_PARAMS(BOOST_PP_MAX(N, 1), typename A)> |
| BOOST_FORCEINLINE |
| result_type operator ()(BOOST_PP_ENUM_BINARY_PARAMS(BOOST_PP_MAX(N, 1), A, &a)) const |
| { |
| return result_type::make(BOOST_PP_ENUM_PARAMS(BOOST_PP_MAX(N, 1), a)); |
| } |
| }; |
| |
| template<typename Type BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> |
| BOOST_FORCEINLINE |
| Type construct(BOOST_PP_ENUM_BINARY_PARAMS(N, A, &a)) |
| { |
| return construct_<Type>()(BOOST_PP_ENUM_PARAMS(N, a)); |
| } |
| |
| } // namespace detail |
| |
| /// \brief A PrimitiveTransform which computes a type by evaluating any |
| /// nested transforms and then constructs an object of that type with the |
| /// current expression, state and data, transformed according |
| /// to \c A0 through \c AN. |
| template<typename Object BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> |
| struct make<Object(BOOST_PP_ENUM_PARAMS(N, A))> |
| : transform<make<Object(BOOST_PP_ENUM_PARAMS(N, A))> > |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl : transform_impl<Expr, State, Data> |
| { |
| /// \brief <tt>boost::result_of\<make\<Object\>(Expr, State, Data)\>::type</tt> |
| typedef typename detail::make_if_<Object, Expr, State, Data>::type result_type; |
| |
| /// Let \c ax be <tt>when\<_, Ax\>()(e, s, d)</tt> |
| /// for each \c x in <tt>[0,N]</tt>. |
| /// Return <tt>result_type(a0, a1,... aN)</tt>. |
| /// |
| /// \param e The current expression |
| /// \param s The current state |
| /// \param d An arbitrary data |
| BOOST_FORCEINLINE |
| result_type operator ()( |
| typename impl::expr_param e |
| , typename impl::state_param s |
| , typename impl::data_param d |
| ) const |
| { |
| proto::detail::ignore_unused(e); |
| proto::detail::ignore_unused(s); |
| proto::detail::ignore_unused(d); |
| return detail::construct<result_type>(BOOST_PP_ENUM(N, BOOST_PROTO_CONSTRUCT_ARG, DATA)); |
| } |
| }; |
| }; |
| |
| #if N > 0 |
| /// \brief A PrimitiveTransform which computes a type by evaluating any |
| /// nested transforms and then constructs an object of that type with the |
| /// current expression, state and data, transformed according |
| /// to \c A0 through \c AN. |
| template<typename Object BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> |
| struct make<Object(BOOST_PP_ENUM_PARAMS(N, A)...)> |
| : transform<make<Object(BOOST_PP_ENUM_PARAMS(N, A)...)> > |
| { |
| template<typename Expr, typename State, typename Data> |
| struct impl |
| : make< |
| typename detail::expand_pattern< |
| proto::arity_of<Expr>::value |
| , BOOST_PP_CAT(A, BOOST_PP_DEC(N)) |
| , detail::BOOST_PP_CAT(expand_pattern_rest_, BOOST_PP_DEC(N))< |
| Object |
| BOOST_PP_ENUM_TRAILING_PARAMS(BOOST_PP_DEC(N), A) |
| > |
| >::type |
| >::template impl<Expr, State, Data> |
| {}; |
| }; |
| #endif |
| #undef N |
| |
| #endif |