| /*============================================================================= |
| Copyright (c) 2001-2006 Joel de Guzman |
| |
| Use, modification and distribution is subject to 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) |
| ==============================================================================*/ |
| #ifndef BOOST_PP_IS_ITERATING |
| #ifndef PHOENIX_STATEMENT_DETAIL_SWITCH_EVAL_IPP |
| #define PHOENIX_STATEMENT_DETAIL_SWITCH_EVAL_IPP |
| |
| #include <boost/preprocessor/cat.hpp> |
| #include <boost/preprocessor/dec.hpp> |
| #include <boost/preprocessor/repeat.hpp> |
| #include <boost/preprocessor/iterate.hpp> |
| #include <boost/preprocessor/repetition/enum_params.hpp> |
| #include <boost/preprocessor/repetition/enum_binary_params.hpp> |
| |
| #define PHOENIX_CASE_ITEM(z, n, prefix) \ |
| case BOOST_PP_CAT(Case, n)::value: \ |
| BOOST_PP_CAT(_, n).eval(env); \ |
| break; |
| |
| #define BOOST_PP_ITERATION_PARAMS_1 \ |
| (3, (3, BOOST_PP_DEC(BOOST_PP_DEC(PHOENIX_COMPOSITE_LIMIT)), \ |
| "boost/spirit/home/phoenix/statement/detail/switch_eval.ipp")) |
| #include BOOST_PP_ITERATE() |
| |
| #undef PHOENIX_CASE_ITEM |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // |
| // Preprocessor vertical repetition code |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| #else // defined(BOOST_PP_IS_ITERATING) |
| |
| #define N BOOST_PP_ITERATION() |
| |
| template <> |
| struct switch_eval<N> |
| { |
| template < |
| typename Env, typename Cond, typename Default |
| , BOOST_PP_ENUM_PARAMS(N, typename Case) |
| > |
| struct result |
| { |
| typedef void type; |
| }; |
| |
| template < |
| typename RT, typename Env, typename Cond, typename Default |
| , BOOST_PP_ENUM_PARAMS(N, typename Case) |
| > |
| static void |
| eval(Env const& env, Cond& cond, Default& default_ |
| , BOOST_PP_ENUM_BINARY_PARAMS(N, Case, & _) |
| ) |
| { |
| switch (cond.eval(env)) |
| { |
| BOOST_PP_REPEAT(N, PHOENIX_CASE_ITEM, _) |
| default: |
| default_.eval(env); |
| } |
| } |
| }; |
| |
| #undef N |
| #endif // defined(BOOST_PP_IS_ITERATING) |
| |
| |