/*=============================================================================
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Copyright (c) 2001-2014 Joel de Guzman
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Copyright (c) 2014 Agustin Berge
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(BOOST_SPIRIT_X3_IS_PARSER_MAY_20_2013_0235PM)
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#define BOOST_SPIRIT_X3_IS_PARSER_MAY_20_2013_0235PM
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#include <boost/mpl/bool.hpp>
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#include <boost/spirit/home/x3/core/parser.hpp>
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#include <boost/spirit/home/x3/support/utility/sfinae.hpp>
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namespace boost { namespace spirit { namespace x3 { namespace traits
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{
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///////////////////////////////////////////////////////////////////////////
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// is_parser<T>: metafunction that evaluates to mpl::true_ if a type T
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// can be used as a parser, mpl::false_ otherwise
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///////////////////////////////////////////////////////////////////////////
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template <typename T, typename Enable = void>
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struct is_parser
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: mpl::false_
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{};
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template <typename T>
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struct is_parser<T, typename disable_if_substitution_failure<
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typename extension::as_parser<T>::type>::type>
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: mpl::true_
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{};
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}}}}
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#endif
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