Chris@16: /*
Chris@101:  *          Copyright Andrey Semashev 2007 - 2015.
Chris@16:  * Distributed under the Boost Software License, Version 1.0.
Chris@16:  *    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:  *          http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: /*!
Chris@16:  * \file   custom_terminal_spec.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   29.01.2012
Chris@16:  *
Chris@16:  * The header contains Boost.Phoenix custom terminal specialization for Boost.Log terminals.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_DETAIL_CUSTOM_TERMINAL_SPEC_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_DETAIL_CUSTOM_TERMINAL_SPEC_HPP_INCLUDED_
Chris@16: 
Chris@16: #include <boost/mpl/bool.hpp>
Chris@16: #include <boost/phoenix/core/terminal_fwd.hpp>
Chris@16: #include <boost/phoenix/core/is_nullary.hpp>
Chris@16: #include <boost/phoenix/core/terminal.hpp> // needed for terminal-related part of the grammar
Chris@16: #include <boost/type_traits/remove_cv.hpp>
Chris@16: #include <boost/type_traits/remove_reference.hpp>
Chris@16: #include <boost/utility/result_of.hpp>
Chris@16: #include <boost/log/detail/config.hpp>
Chris@16: #include <boost/log/detail/header.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_HAS_PRAGMA_ONCE
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: namespace phoenix {
Chris@16: 
Chris@16: template< typename T >
Chris@16: struct is_custom_terminal< T, typename T::_is_boost_log_terminal > :
Chris@16:     public mpl::true_
Chris@16: {
Chris@16: };
Chris@16: 
Chris@16: template< typename T >
Chris@16: struct custom_terminal< T, typename T::_is_boost_log_terminal >
Chris@16: {
Chris@16:     typedef custom_terminal< T, typename T::_is_boost_log_terminal > this_type;
Chris@16: 
Chris@16:     template< typename >
Chris@16:     struct result;
Chris@16: 
Chris@16:     template< typename ThisT, typename TermT, typename ContextT >
Chris@16:     struct result< ThisT(TermT, ContextT) >
Chris@16:     {
Chris@16:         typedef typename remove_cv< typename remove_reference< TermT >::type >::type term;
Chris@16:         typedef typename boost::result_of< const term(ContextT) >::type type;
Chris@16:     };
Chris@16: 
Chris@16:     template< typename ContextT >
Chris@16:     typename result< const this_type(T const&, ContextT&) >::type operator() (T const& term, ContextT& ctx) const
Chris@16:     {
Chris@16:         return term(ctx);
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: } // namespace phoenix
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/log/detail/footer.hpp>
Chris@16: 
Chris@16: #endif // BOOST_LOG_DETAIL_CUSTOM_TERMINAL_SPEC_HPP_INCLUDED_