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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_ |