| #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
| |
| #include <boost/proto/transform/detail/preprocessed/pass_through_impl.hpp> |
| |
| #elif !defined(BOOST_PP_IS_ITERATING) |
| |
| #define BOOST_PROTO_DEFINE_TRANSFORM_TYPE(Z, N, DATA) \ |
| typename Grammar::BOOST_PP_CAT(proto_child, N)::template impl< \ |
| typename result_of::child_c<Expr, N>::type \ |
| , State \ |
| , Data \ |
| >::result_type \ |
| /**/ |
| |
| #define BOOST_PROTO_DEFINE_TRANSFORM(Z, N, DATA) \ |
| typename Grammar::BOOST_PP_CAT(proto_child, N)::template impl< \ |
| typename result_of::child_c<Expr, N>::type \ |
| , State \ |
| , Data \ |
| >()( \ |
| e.proto_base().BOOST_PP_CAT(child, N), s, d \ |
| ) \ |
| /**/ |
| |
| #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
| #pragma wave option(preserve: 2, line: 0, output: "preprocessed/pass_through_impl.hpp") |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /// \file pass_through_impl.hpp |
| /// |
| /// Specializations of pass_through_impl, used in the implementation of the |
| /// pass_through 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, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/transform/detail/pass_through_impl.hpp>)) |
| #include BOOST_PP_ITERATE() |
| |
| #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
| #pragma wave option(output: null) |
| #endif |
| |
| #undef BOOST_PROTO_DEFINE_TRANSFORM |
| #undef BOOST_PROTO_DEFINE_TRANSFORM_TYPE |
| |
| #else |
| |
| #define N BOOST_PP_ITERATION() |
| |
| template<typename Grammar, typename Expr, typename State, typename Data> |
| struct pass_through_impl<Grammar, Expr, State, Data, N> |
| : transform_impl<Expr, State, Data> |
| { |
| typedef typename pass_through_impl::expr unref_expr; |
| |
| typedef |
| typename base_expr< |
| typename unref_expr::proto_domain |
| , typename unref_expr::proto_tag |
| , BOOST_PP_CAT(list, N)< |
| BOOST_PP_ENUM(N, BOOST_PROTO_DEFINE_TRANSFORM_TYPE, ~) |
| > |
| >::type |
| expr_type; |
| |
| typedef typename unref_expr::proto_generator proto_generator; |
| typedef typename BOOST_PROTO_RESULT_OF<proto_generator(expr_type)>::type const result_type; |
| |
| result_type const operator ()( |
| typename pass_through_impl::expr_param e |
| , typename pass_through_impl::state_param s |
| , typename pass_through_impl::data_param d |
| ) const |
| { |
| expr_type const that = { |
| BOOST_PP_ENUM(N, BOOST_PROTO_DEFINE_TRANSFORM, ~) |
| }; |
| // Without this, MSVC complains that "that" is uninitialized, |
| // and it actually triggers a runtime check in debug mode when |
| // built with VC8. |
| detail::ignore_unused(&that); |
| return proto_generator()(that); |
| } |
| }; |
| |
| #undef N |
| |
| #endif |