61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2015.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*!
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* \file as_action.hpp
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* \author Andrey Semashev
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* \date 30.03.2008
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*
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* This header contains function object adapter for compatibility with Boost.Spirit actions interface requirements.
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*/
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#ifndef BOOST_LOG_UTILITY_FUNCTIONAL_AS_ACTION_HPP_INCLUDED_
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#define BOOST_LOG_UTILITY_FUNCTIONAL_AS_ACTION_HPP_INCLUDED_
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#include <boost/log/detail/config.hpp>
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#include <boost/log/detail/header.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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//! Function object adapter for Boost.Spirit actions
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template< typename FunT >
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struct as_action_adapter
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{
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typedef typename FunT::result_type result_type;
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BOOST_DEFAULTED_FUNCTION(as_action_adapter(), {})
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explicit as_action_adapter(FunT const& fun) : m_fun(fun) {}
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template< typename AttributeT, typename ContextT >
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result_type operator() (AttributeT const& attr, ContextT const& ctx, bool& pass) const
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{
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return m_fun(attr);
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}
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private:
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FunT m_fun;
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};
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template< typename FunT >
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BOOST_FORCEINLINE as_action_adapter< FunT > as_action(FunT const& fun)
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{
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return as_action_adapter< FunT >(fun);
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}
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#endif // BOOST_LOG_UTILITY_FUNCTIONAL_AS_ACTION_HPP_INCLUDED_
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