| 1 | /* |
|---|---|
| 2 | * Copyright Andrey Semashev 2007 - 2015. |
| 3 | * Distributed under the Boost Software License, Version 1.0. |
| 4 | * (See accompanying file LICENSE_1_0.txt or copy at |
| 5 | * http://www.boost.org/LICENSE_1_0.txt) |
| 6 | */ |
| 7 | /*! |
| 8 | * \file custom_terminal_spec.hpp |
| 9 | * \author Andrey Semashev |
| 10 | * \date 29.01.2012 |
| 11 | * |
| 12 | * The header contains Boost.Phoenix custom terminal specialization for Boost.Log terminals. |
| 13 | */ |
| 14 | |
| 15 | #ifndef BOOST_LOG_DETAIL_CUSTOM_TERMINAL_SPEC_HPP_INCLUDED_ |
| 16 | #define BOOST_LOG_DETAIL_CUSTOM_TERMINAL_SPEC_HPP_INCLUDED_ |
| 17 | |
| 18 | #include <boost/mpl/bool.hpp> |
| 19 | #include <boost/phoenix/core/terminal_fwd.hpp> |
| 20 | #include <boost/phoenix/core/is_nullary.hpp> |
| 21 | #include <boost/phoenix/core/terminal.hpp> // needed for terminal-related part of the grammar |
| 22 | #include <boost/type_traits/remove_cv.hpp> |
| 23 | #include <boost/type_traits/remove_reference.hpp> |
| 24 | #include <boost/utility/result_of.hpp> |
| 25 | #include <boost/log/detail/config.hpp> |
| 26 | #include <boost/log/detail/header.hpp> |
| 27 | |
| 28 | #ifdef BOOST_HAS_PRAGMA_ONCE |
| 29 | #pragma once |
| 30 | #endif |
| 31 | |
| 32 | namespace boost { |
| 33 | |
| 34 | namespace phoenix { |
| 35 | |
| 36 | template< typename T > |
| 37 | struct is_custom_terminal< T, typename T::_is_boost_log_terminal > : |
| 38 | public mpl::true_ |
| 39 | { |
| 40 | }; |
| 41 | |
| 42 | template< typename T > |
| 43 | struct custom_terminal< T, typename T::_is_boost_log_terminal > |
| 44 | { |
| 45 | typedef custom_terminal< T, typename T::_is_boost_log_terminal > this_type; |
| 46 | |
| 47 | template< typename > |
| 48 | struct result; |
| 49 | |
| 50 | template< typename ThisT, typename TermT, typename ContextT > |
| 51 | struct result< ThisT(TermT, ContextT) > |
| 52 | { |
| 53 | typedef typename remove_cv< typename remove_reference< TermT >::type >::type term; |
| 54 | typedef typename boost::result_of< const term(ContextT) >::type type; |
| 55 | }; |
| 56 | |
| 57 | template< typename ContextT > |
| 58 | typename result< const this_type(T const&, ContextT&) >::type operator() (T const& term, ContextT& ctx) const |
| 59 | { |
| 60 | return term(ctx); |
| 61 | } |
| 62 | }; |
| 63 | |
| 64 | } // namespace phoenix |
| 65 | |
| 66 | } // namespace boost |
| 67 | |
| 68 | #include <boost/log/detail/footer.hpp> |
| 69 | |
| 70 | #endif // BOOST_LOG_DETAIL_CUSTOM_TERMINAL_SPEC_HPP_INCLUDED_ |
| 71 |