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   attr_output_impl.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   12.08.2012
Chris@16:  *
Chris@16:  * \brief  This header is the Boost.Log library implementation, see the library documentation
Chris@16:  *         at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_DETAIL_ATTR_OUTPUT_IMPL_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_DETAIL_ATTR_OUTPUT_IMPL_HPP_INCLUDED_
Chris@16: 
Chris@16: #include <boost/mpl/is_sequence.hpp>
Chris@16: #include <boost/phoenix/core/actor.hpp>
Chris@16: #include <boost/log/detail/config.hpp>
Chris@16: #include <boost/log/expressions/attr.hpp>
Chris@16: #include <boost/log/utility/functional/bind_to_log.hpp>
Chris@16: #include <boost/log/detail/attr_output_terminal.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: BOOST_LOG_OPEN_NAMESPACE
Chris@16: 
Chris@16: namespace expressions {
Chris@16: 
Chris@16: namespace aux {
Chris@16: 
Chris@16: template< typename LeftT, typename T, typename FallbackPolicyT, typename TagT >
Chris@16: struct make_output_expression
Chris@16: {
Chris@16:     //! Resulting expression
Chris@16:     typedef attribute_output_terminal< LeftT, T, FallbackPolicyT, to_log_fun< TagT > > type;
Chris@16: 
Chris@16:     //! Creates the output expression
Chris@16:     template< typename RightT >
Chris@16:     static BOOST_FORCEINLINE type make(LeftT const& left, RightT const& right)
Chris@16:     {
Chris@16:         return type(left, right.get_name(), to_log_fun< TagT >(), right.get_fallback_policy());
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: template< typename LeftT, typename RightT, typename ValueT = typename RightT::value_type, bool IsSequenceV = mpl::is_sequence< ValueT >::value >
Chris@16: struct make_output_actor;
Chris@16: 
Chris@16: template< template< typename > class ActorT, typename LeftExprT, typename RightT, typename ValueT >
Chris@16: struct make_output_actor< ActorT< LeftExprT >, RightT, ValueT, false >
Chris@16: {
Chris@16:     typedef make_output_expression<
Chris@16:         ActorT< LeftExprT >,
Chris@16:         ValueT,
Chris@16:         typename RightT::fallback_policy,
Chris@16:         typename RightT::tag_type
Chris@16:     > make_expression;
Chris@16: 
Chris@16:     typedef ActorT< typename make_expression::type > type;
Chris@16: 
Chris@16:     static BOOST_FORCEINLINE type make(ActorT< LeftExprT > const& left, RightT const& right)
Chris@16:     {
Chris@16:         type res = {{ make_expression::make(left, right) }};
Chris@16:         return res;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: template< template< typename > class ActorT, typename LeftExprT, typename RightT, typename ValueT >
Chris@16: struct make_output_actor< ActorT< LeftExprT >, RightT, ValueT, true >
Chris@16: {
Chris@16:     typedef attribute_output_terminal< ActorT< LeftExprT >, ValueT, typename RightT::fallback_policy, to_log_fun< typename RightT::tag_type > > expression_type;
Chris@16: 
Chris@16:     typedef ActorT< expression_type > type;
Chris@16: 
Chris@16:     static BOOST_FORCEINLINE type make(ActorT< LeftExprT > const& left, RightT const& right)
Chris@16:     {
Chris@16:         type res = {{ expression_type(left, right.get_name(), to_log_fun< typename RightT::tag_type >(), right.get_fallback_policy()) }};
Chris@16:         return res;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: } // namespace aux
Chris@16: 
Chris@16: #define BOOST_LOG_AUX_OVERLOAD(left_ref, right_ref)\
Chris@16:     template< typename LeftExprT, typename T, typename FallbackPolicyT, typename TagT >\
Chris@16:     BOOST_FORCEINLINE typename aux::make_output_actor< phoenix::actor< LeftExprT >, attribute_actor< T, FallbackPolicyT, TagT, phoenix::actor > >::type\
Chris@16:     operator<< (phoenix::actor< LeftExprT > left_ref left, attribute_actor< T, FallbackPolicyT, TagT, phoenix::actor > right_ref right)\
Chris@16:     {\
Chris@16:         return aux::make_output_actor< phoenix::actor< LeftExprT >, attribute_actor< T, FallbackPolicyT, TagT, phoenix::actor > >::make(left, right);\
Chris@16:     }
Chris@16: 
Chris@16: #include <boost/log/detail/generate_overloads.hpp>
Chris@16: 
Chris@16: #undef BOOST_LOG_AUX_OVERLOAD
Chris@16: 
Chris@16: } // namespace expressions
Chris@16: 
Chris@16: BOOST_LOG_CLOSE_NAMESPACE // namespace log
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/log/detail/footer.hpp>
Chris@16: 
Chris@16: #endif // BOOST_LOG_DETAIL_ATTR_OUTPUT_IMPL_HPP_INCLUDED_