Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2001-2011 Joel de Guzman
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: =============================================================================*/
Chris@16: #if !defined(BOOST_SPIRIT_WHAT_APRIL_21_2007_0732AM)
Chris@16: #define BOOST_SPIRIT_WHAT_APRIL_21_2007_0732AM
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/mpl/assert.hpp>
Chris@16: #include <boost/spirit/home/support/info.hpp>
Chris@16: #include <boost/spirit/home/qi/meta_compiler.hpp>
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace qi
Chris@16: {
Chris@16:     template <typename Expr>
Chris@16:     inline info what(Expr const& expr)
Chris@16:     {
Chris@16:         // Report invalid expression error as early as possible.
Chris@16:         // If you got an error_expr_is_not_convertible_to_a_parser
Chris@16:         // error message here, then the expression (expr) is not a
Chris@16:         // valid spirit qi expression.
Chris@16:         BOOST_SPIRIT_ASSERT_MATCH(qi::domain, Expr);
Chris@16:         return compile<qi::domain>(expr).what(unused);
Chris@16:     }
Chris@16: }}}
Chris@16: 
Chris@16: #endif
Chris@16: