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/*
* Copyright Andrey Semashev 2007 - 2015.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/*!
* \file attr_output_impl.hpp
* \author Andrey Semashev
* \date 12.08.2012
*
* \brief This header is the Boost.Log library implementation, see the library documentation
* at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
*/
#ifndef BOOST_LOG_DETAIL_ATTR_OUTPUT_IMPL_HPP_INCLUDED_
#define BOOST_LOG_DETAIL_ATTR_OUTPUT_IMPL_HPP_INCLUDED_
#include <boost/mpl/is_sequence.hpp>
#include <boost/phoenix/core/actor.hpp>
#include <boost/log/detail/config.hpp>
#include <boost/log/expressions/attr.hpp>
#include <boost/log/utility/functional/bind_to_log.hpp>
#include <boost/log/detail/attr_output_terminal.hpp>
#include <boost/log/detail/header.hpp>
#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif
namespace boost {
BOOST_LOG_OPEN_NAMESPACE
namespace expressions {
namespace aux {
template< typename LeftT, typename T, typename FallbackPolicyT, typename TagT >
struct make_output_expression
{
//! Resulting expression
typedef attribute_output_terminal< LeftT, T, FallbackPolicyT, to_log_fun< TagT > > type;
//! Creates the output expression
template< typename RightT >
static BOOST_FORCEINLINE type make(LeftT const& left, RightT const& right)
{
return type(left, right.get_name(), to_log_fun< TagT >(), right.get_fallback_policy());
}
};
template< typename LeftT, typename RightT, typename ValueT = typename RightT::value_type, bool IsSequenceV = mpl::is_sequence< ValueT >::value >
struct make_output_actor;
template< template< typename > class ActorT, typename LeftExprT, typename RightT, typename ValueT >
struct make_output_actor< ActorT< LeftExprT >, RightT, ValueT, false >
{
typedef make_output_expression<
ActorT< LeftExprT >,
ValueT,
typename RightT::fallback_policy,
typename RightT::tag_type
> make_expression;
typedef ActorT< typename make_expression::type > type;
static BOOST_FORCEINLINE type make(ActorT< LeftExprT > const& left, RightT const& right)
{
type res = {{ make_expression::make(left, right) }};
return res;
}
};
template< template< typename > class ActorT, typename LeftExprT, typename RightT, typename ValueT >
struct make_output_actor< ActorT< LeftExprT >, RightT, ValueT, true >
{
typedef attribute_output_terminal< ActorT< LeftExprT >, ValueT, typename RightT::fallback_policy, to_log_fun< typename RightT::tag_type > > expression_type;
typedef ActorT< expression_type > type;
static BOOST_FORCEINLINE type make(ActorT< LeftExprT > const& left, RightT const& right)
{
type res = {{ expression_type(left, right.get_name(), to_log_fun< typename RightT::tag_type >(), right.get_fallback_policy()) }};
return res;
}
};
} // namespace aux
#define BOOST_LOG_AUX_OVERLOAD(left_ref, right_ref)\
template< typename LeftExprT, typename T, typename FallbackPolicyT, typename TagT >\
BOOST_FORCEINLINE typename aux::make_output_actor< phoenix::actor< LeftExprT >, attribute_actor< T, FallbackPolicyT, TagT, phoenix::actor > >::type\
operator<< (phoenix::actor< LeftExprT > left_ref left, attribute_actor< T, FallbackPolicyT, TagT, phoenix::actor > right_ref right)\
{\
return aux::make_output_actor< phoenix::actor< LeftExprT >, attribute_actor< T, FallbackPolicyT, TagT, phoenix::actor > >::make(left, right);\
}
#include <boost/log/detail/generate_overloads.hpp>
#undef BOOST_LOG_AUX_OVERLOAD
} // namespace expressions
BOOST_LOG_CLOSE_NAMESPACE // namespace log
} // namespace boost
#include <boost/log/detail/footer.hpp>
#endif // BOOST_LOG_DETAIL_ATTR_OUTPUT_IMPL_HPP_INCLUDED_
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