Chris@16: /*==============================================================================
Chris@16:     Copyright (c) 2001-2010 Joel de Guzman
Chris@16:     Copyright (c) 2010 Eric Niebler
Chris@16:     Copyright (c) 2010-2011 Thomas Heller
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: ==============================================================================*/
Chris@16: #ifndef BOOST_PHOENIX_CORE_ARGUMENT_HPP
Chris@16: #define BOOST_PHOENIX_CORE_ARGUMENT_HPP
Chris@16: 
Chris@16: #include <boost/phoenix/core/limits.hpp>
Chris@16: #include <boost/phoenix/core/actor.hpp>
Chris@16: #include <boost/phoenix/core/expression.hpp>
Chris@16: #include <boost/phoenix/core/terminal.hpp>
Chris@16: #include <boost/mpl/int.hpp>
Chris@16: 
Chris@16: namespace boost { namespace phoenix
Chris@16: {
Chris@16:     ////////////////////////////////////////////////////////////////////////////
Chris@16:     //
Chris@16:     //  argument
Chris@16:     //
Chris@16:     //      function for evaluating argument placeholders like: _1
Chris@16:     //
Chris@16:     ////////////////////////////////////////////////////////////////////////////
Chris@16:     
Chris@16:     template <int I>
Chris@16:     struct argument
Chris@16:         //: mpl::int_<I>
Chris@16:     {
Chris@16:         typedef typename mpl::int_<I>::value_type value_type;
Chris@16:         static const value_type value = mpl::int_<I>::value;
Chris@16:         
Chris@16:         bool operator==(argument) const
Chris@16:         {
Chris@16:             return true;
Chris@16:         }
Chris@16:         
Chris@16:         template <int I2>
Chris@16:         bool operator==(argument<I2>) const
Chris@16:         {
Chris@16:             return false;
Chris@16:         }
Chris@16:     };
Chris@16: }}
Chris@16: 
Chris@16: namespace boost {
Chris@16:     template <int I>
Chris@16:     struct is_placeholder<phoenix::argument<I> >
Chris@16:         : mpl::int_<I>
Chris@16:     {};
Chris@16: }
Chris@16: 
Chris@16: namespace boost { namespace phoenix
Chris@16: {
Chris@16:     namespace expression
Chris@16:     {
Chris@16:         template <int I>
Chris@16:         struct argument
Chris@16:             : expression::terminal<phoenix::argument<I> >
Chris@16:         {
Chris@16:             typedef typename expression::terminal<phoenix::argument<I> >::type type;
Chris@16:             static const type make()
Chris@16:             {
Chris@16:                 type const e = {{{}}};
Chris@16:                 return e;
Chris@16:             }
Chris@16:         };
Chris@16:     }
Chris@16: 
Chris@16: #if !defined(BOOST_PHOENIX_DONT_USE_PREPROCESSED_FILES)
Chris@16: 
Chris@16: #include <boost/phoenix/core/preprocessed/argument.hpp>
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@16: #if !defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
Chris@16: #include <boost/phoenix/core/detail/argument.hpp>
Chris@16: #else
Chris@16: 
Chris@16: #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
Chris@16: #pragma wave option(preserve: 2, line: 0, output: "preprocessed/argument_predefined_" BOOST_PHOENIX_LIMIT_STR ".hpp")
Chris@16: #endif
Chris@16: /*==============================================================================
Chris@16:     Copyright (c) 2001-2010 Joel de Guzman
Chris@16:     Copyright (c) 2010-2011 Thomas Heller
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: ==============================================================================*/
Chris@16: 
Chris@16: #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
Chris@16: #pragma wave option(preserve: 1)
Chris@16: #endif
Chris@16: 
Chris@16: #ifdef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
Chris@16: #undef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
Chris@16: #define BOOST_PHOENIX_NO_PREDEFINED_TERMINALS_RESTORE
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/phoenix/core/detail/argument.hpp>
Chris@16: 
Chris@16: #ifndef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS_RESTORE
Chris@16: #define BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
Chris@16: #undef BOOST_PHOENIX_NO_PREDEFINED_TERIMINALS_RESTORE
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
Chris@16: #pragma wave option(output: null)
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
Chris@16: #pragma wave option(preserve: 2, line: 0, output: "preprocessed/argument_no_predefined_" BOOST_PHOENIX_LIMIT_STR ".hpp")
Chris@16: #endif
Chris@16: /*==============================================================================
Chris@16:     Copyright (c) 2001-2010 Joel de Guzman
Chris@16:     Copyright (c) 2010-2011 Thomas Heller
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: ==============================================================================*/
Chris@16: 
Chris@16: #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
Chris@16: #pragma wave option(preserve: 1)
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
Chris@16: #define BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
Chris@16: #define BOOST_PHOENIX_NO_PREDEFINED_TERMINALS_RESTORE
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/phoenix/core/detail/argument.hpp>
Chris@16: 
Chris@16: #ifndef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS_RESTORE
Chris@16: #undef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
Chris@16: #undef BOOST_PHOENIX_NO_PREDEFINED_TERIMINALS_RESTORE
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
Chris@16: #pragma wave option(output: null)
Chris@16: #endif
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif