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// Copyright 2004, 2005, 2006 Cryolite.
// 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)

// This header provides specializations of 'boost::result_of' for
// 'boost::lambda::lambda_functor.'
#ifndef CRADLE_LAMBDA_LAMBDA_HPP_INCLUDE_GUARD
#define CRADLE_LAMBDA_LAMBDA_HPP_INCLUDE_GUARD

#include <boost/preprocessor/repetition/enum_params.hpp>
#include <boost/preprocessor/repetition/enum_trailing_binary_params.hpp>
#include <boost/preprocessor/repetition/repeat.hpp>
#include <boost/preprocessor/facilities/intercept.hpp>
#include <boost/utility/result_of.hpp>
#include <cradle/boost/lambda/lambda.hpp>
#include <boost/tuple/tuple.hpp>



namespace boost{

#define CRADLE_LAMBDA_result_of_spec( Z, I, _ )                              \
template<                                                                    \
    class T                                                                  \
    BOOST_PP_ENUM_TRAILING_BINARY_PARAMS( I, class BOOST_PP_INTERCEPT, A )   \
>                                                                            \
struct result_of<                                                            \
    boost::lambda::lambda_functor< T >( BOOST_PP_ENUM_PARAMS( I, A ) )       \
  >                                                                          \
  : public boost::lambda::lambda_functor< T >::template sig<                 \
        boost::tuple<                                                        \
            boost::lambda::lambda_functor< T >                               \
            BOOST_PP_ENUM_TRAILING_PARAMS( I, A )                            \
          >                                                                  \
      >                                                                      \
{};                                                                          \
                                                                             \
template<                                                                    \
    class T                                                                  \
    BOOST_PP_ENUM_TRAILING_BINARY_PARAMS( I, class BOOST_PP_INTERCEPT, A )   \
  >                                                                          \
struct result_of<                                                            \
    boost::lambda::lambda_functor< T > const( BOOST_PP_ENUM_PARAMS( I, A ) ) \
  >                                                                          \
  : public boost::lambda::lambda_functor< T >::template sig<                 \
        boost::tuple<                                                        \
            boost::lambda::lambda_functor< T >                               \
            BOOST_PP_ENUM_TRAILING_PARAMS( I, A )                            \
          >                                                                  \
      >                                                                      \
{};                                                                          \
  /**/

BOOST_PP_REPEAT( 10, CRADLE_LAMBDA_result_of_spec, _ )

#undef CRADLE_LAMBDA_result_of_spec

} // namespace boost



#endif // CRADLE_LAMBDA_LAMBDA_HPP_INCLUDE_GUARD