// Copyright David Abrahams 2002.

// 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)

#ifndef TO_PYTHON_CONVERTER_DWA200221_HPP

# define TO_PYTHON_CONVERTER_DWA200221_HPP



# include <boost/python/detail/prefix.hpp>



# include <boost/python/converter/registry.hpp>

# include <boost/python/converter/as_to_python_function.hpp>

#ifndef BOOST_PYTHON_NO_PY_SIGNATURES

# include <boost/python/converter/pytype_function.hpp>

#endif

# include <boost/python/type_id.hpp>



namespace boost { namespace python { 



#if 0 //get_pytype member detection

namespace detail

{

    typedef char yes_type;

    typedef struct {char a[2]; } no_type;

    template<PyTypeObject const * (*f)()> struct test_get_pytype1 { };

    template<PyTypeObject * (*f)()>          struct test_get_pytype2 { };



    template<class T> yes_type tester(test_get_pytype1<&T::get_pytype>*);



    template<class T> yes_type tester(test_get_pytype2<&T::get_pytype>*);



    template<class T> no_type tester(...);



    template<class T>

    struct test_get_pytype_base  

    {

        BOOST_STATIC_CONSTANT(bool, value= (sizeof(detail::tester<T>(0)) == sizeof(yes_type)));

    };



    template<class T>

    struct test_get_pytype : boost::mpl::bool_<test_get_pytype_base<T>::value> 

    {

    };



}

#endif



template < class T, class Conversion, bool has_get_pytype=false >

struct to_python_converter 

{

#ifndef BOOST_PYTHON_NO_PY_SIGNATURES

#if 0 //defined _MSC_VER && _MSC_VER >=1310

    //probably other compilers could come here as well

    typedef typename detail::test_get_pytype<Conversion> HasGetPytype;

#else

    typedef boost::mpl::bool_<has_get_pytype> HasGetPytype;

#endif



    static PyTypeObject const* get_pytype_1(boost::mpl::true_ *)

    {

        return Conversion::get_pytype();

    }



    static PyTypeObject const* get_pytype_1(boost::mpl::false_ *)

    {

        return 0;

    }

    static PyTypeObject const* get_pytype_impl()

    {

        return get_pytype_1((HasGetPytype*)0);

    }

#endif

    

    to_python_converter();

};



//

// implementation

//



template <class T, class Conversion ,bool has_get_pytype>

to_python_converter<T,Conversion, has_get_pytype>::to_python_converter()

{

    typedef converter::as_to_python_function<

        T, Conversion

        > normalized;

            

    converter::registry::insert(

        &normalized::convert

        , type_id<T>()

#ifndef BOOST_PYTHON_NO_PY_SIGNATURES

        , &get_pytype_impl

#endif

        );

}



}} // namespace boost::python



#endif // TO_PYTHON_CONVERTER_DWA200221_HPP



