// Copyright (c) 2003 Daniel Wallin and Arvid Norberg

// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
// ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
// SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
// ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
// OR OTHER DEALINGS IN THE SOFTWARE.


#ifndef LUABIND_RAW_POLICY_HPP_INCLUDED
#define LUABIND_RAW_POLICY_HPP_INCLUDED

#include <luabind/config.hpp>
#include <luabind/detail/policy.hpp>

namespace luabind { namespace detail  {

    struct raw_converter
    {
        int consumed_args() const
        {
            return 0;
        }

        lua_State* apply(lua_State* L, by_pointer<lua_State>, int)
        {
            return L;
        }

        static int match(...)
        {
            return 0;
        }

        void converter_postcall(lua_State*, by_pointer<lua_State>, int) {}
    };

    template<int N>
    struct raw_policy : conversion_policy<N, false>
    {
        static void precall(lua_State*, const index_map&) {}
        static void postcall(lua_State*, const index_map&) {}

        template<class T, class Direction>
        struct apply
        {
            typedef raw_converter type;
        };
    };

}} // namespace luabind::detail

namespace luabind {

    template<int N>
    detail::policy_cons<
        detail::raw_policy<N>
      , detail::null_type
    >
    inline raw(LUABIND_PLACEHOLDER_ARG(N))
    {
        return detail::policy_cons<
            detail::raw_policy<N>
          , detail::null_type
        >();
    }

} // namespace luabind

#endif // LUABIND_RAW_POLICY_HPP_INCLUDED
