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165 lines
6.7 KiB
165 lines
6.7 KiB
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#if !defined(BOOST_PHOENIX_DONT_USE_PREPROCESSED_FILES) |
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#ifndef BOOST_PHOENIX_STATEMENT_DETAIL_SWITCH_HPP |
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#define BOOST_PHOENIX_STATEMENT_DETAIL_SWITCH_HPP |
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#include <boost/phoenix/support/iterate.hpp> |
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#include <boost/phoenix/statement/detail/preprocessed/switch.hpp> |
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#endif |
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#else |
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#if !BOOST_PHOENIX_IS_ITERATING |
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#ifndef BOOST_PHOENIX_STATEMENT_DETAIL_SWITCH_HPP |
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#define BOOST_PHOENIX_STATEMENT_DETAIL_SWITCH_HPP |
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#include <boost/phoenix/support/iterate.hpp> |
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#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(preserve: 2, line: 0, output: "preprocessed/switch_" BOOST_PHOENIX_LIMIT_STR ".hpp") |
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#endif |
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/*============================================================================== |
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Copyright (c) 2005-2010 Joel de Guzman |
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Copyright (c) 2010 Thomas Heller |
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Distributed under the Boost Software License, Version 1.0. (See accompanying |
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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==============================================================================*/ |
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#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(preserve: 1) |
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#endif |
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#define BOOST_PHOENIX_SWITCH_EVAL_TYPEDEF_R(Z, N, DATA) \ |
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typedef \ |
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typename fusion::result_of::deref< \ |
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typename fusion::result_of::advance_c< \ |
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flat_view_begin \ |
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, N \ |
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>::type \ |
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>::type \ |
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BOOST_PP_CAT(case, N); \ |
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typedef \ |
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typename proto::detail::uncvref< \ |
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typename proto::result_of::value< \ |
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typename proto::result_of::child_c< \ |
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BOOST_PP_CAT(case, N) \ |
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, 0 \ |
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>::type \ |
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>::type \ |
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>::type \ |
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BOOST_PP_CAT(case_label, N); \ |
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/**/ |
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#define BOOST_PHOENIX_SWITCH_EVAL_R(Z, N, DATA) \ |
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case BOOST_PP_CAT(case_label, N)::value : \ |
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boost::phoenix::eval( \ |
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proto::child_c<1>( \ |
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fusion::deref( \ |
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fusion::advance_c<N>(fusion::begin(flat_view)) \ |
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) \ |
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) \ |
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, ctx \ |
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); \ |
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break; \ |
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/**/ |
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#define BOOST_PHOENIX_ITERATION_PARAMS \ |
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(3, (2, BOOST_PHOENIX_LIMIT, \ |
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<boost/phoenix/statement/detail/switch.hpp>)) |
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#include BOOST_PHOENIX_ITERATE() |
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#undef BOOST_PHOENIX_SWITCH_EVAL_R |
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#undef BOOST_PHOENIX_SWITCH_EVAL_TYPEDEF |
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#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(output: null) |
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#endif |
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#endif |
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#else |
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template <typename Context, typename Cond, typename Cases> |
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result_type |
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evaluate( |
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Context & ctx |
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, Cond const & cond |
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, Cases const & cases |
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, mpl::int_<BOOST_PHOENIX_ITERATION> |
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, mpl::false_ |
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) const |
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{ |
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typedef |
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typename proto::result_of::flatten<Cases const&>::type |
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flat_view_type; |
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typedef |
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typename fusion::result_of::begin<flat_view_type>::type |
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flat_view_begin; |
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flat_view_type flat_view(proto::flatten(cases)); |
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BOOST_PP_REPEAT( |
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BOOST_PHOENIX_ITERATION |
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, BOOST_PHOENIX_SWITCH_EVAL_TYPEDEF_R |
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, BOOST_PHOENIX_ITERATION |
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) |
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switch(boost::phoenix::eval(cond, ctx)) |
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{ |
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BOOST_PP_REPEAT(BOOST_PHOENIX_ITERATION, BOOST_PHOENIX_SWITCH_EVAL_R, _) |
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} |
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} |
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template <typename Context, typename Cond, typename Cases> |
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result_type |
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evaluate( |
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Context & ctx |
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, Cond const & cond |
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, Cases const & cases |
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, mpl::int_<BOOST_PHOENIX_ITERATION> |
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, mpl::true_ |
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) const |
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{ |
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typedef |
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typename proto::result_of::flatten<Cases const&>::type |
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flat_view_type; |
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typedef |
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typename fusion::result_of::begin<flat_view_type>::type |
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flat_view_begin; |
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flat_view_type flat_view(proto::flatten(cases)); |
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BOOST_PP_REPEAT( |
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BOOST_PP_DEC(BOOST_PHOENIX_ITERATION) |
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, BOOST_PHOENIX_SWITCH_EVAL_TYPEDEF_R |
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, BOOST_PHOENIX_ITERATION |
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) |
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switch(boost::phoenix::eval(cond, ctx)) |
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{ |
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BOOST_PP_REPEAT( |
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BOOST_PP_DEC(BOOST_PHOENIX_ITERATION) |
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, BOOST_PHOENIX_SWITCH_EVAL_R, _ |
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) |
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default: |
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boost::phoenix::eval( |
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proto::child_c<0>( |
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fusion::deref( |
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fusion::advance_c< |
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BOOST_PP_DEC(BOOST_PHOENIX_ITERATION) |
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>(fusion::begin(flat_view)) |
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) |
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) |
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, ctx |
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); |
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} |
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} |
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#endif |
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#endif // BOOST_PHOENIX_DONT_USE_PREPROCESSED_FILES
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