Chris@16: // Copyright David Abrahams 2002.
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: #ifndef TO_PYTHON_CONVERTER_DWA200221_HPP
Chris@16: # define TO_PYTHON_CONVERTER_DWA200221_HPP
Chris@16: 
Chris@16: # include <boost/python/detail/prefix.hpp>
Chris@16: 
Chris@16: # include <boost/python/converter/registry.hpp>
Chris@16: # include <boost/python/converter/as_to_python_function.hpp>
Chris@16: #ifndef BOOST_PYTHON_NO_PY_SIGNATURES
Chris@16: # include <boost/python/converter/pytype_function.hpp>
Chris@16: #endif
Chris@16: # include <boost/python/type_id.hpp>
Chris@16: 
Chris@16: namespace boost { namespace python { 
Chris@16: 
Chris@16: #if 0 //get_pytype member detection
Chris@16: namespace detail
Chris@16: {
Chris@16:     typedef char yes_type;
Chris@16:     typedef struct {char a[2]; } no_type;
Chris@16:     template<PyTypeObject const * (*f)()> struct test_get_pytype1 { };
Chris@16:     template<PyTypeObject * (*f)()>          struct test_get_pytype2 { };
Chris@16: 
Chris@16:     template<class T> yes_type tester(test_get_pytype1<&T::get_pytype>*);
Chris@16: 
Chris@16:     template<class T> yes_type tester(test_get_pytype2<&T::get_pytype>*);
Chris@16: 
Chris@16:     template<class T> no_type tester(...);
Chris@16: 
Chris@16:     template<class T>
Chris@16:     struct test_get_pytype_base  
Chris@16:     {
Chris@16:         BOOST_STATIC_CONSTANT(bool, value= (sizeof(detail::tester<T>(0)) == sizeof(yes_type)));
Chris@16:     };
Chris@16: 
Chris@16:     template<class T>
Chris@16:     struct test_get_pytype : boost::mpl::bool_<test_get_pytype_base<T>::value> 
Chris@16:     {
Chris@16:     };
Chris@16: 
Chris@16: }
Chris@16: #endif
Chris@16: 
Chris@16: template < class T, class Conversion, bool has_get_pytype=false >
Chris@16: struct to_python_converter 
Chris@16: {
Chris@16: #ifndef BOOST_PYTHON_NO_PY_SIGNATURES
Chris@16: #if 0 //defined _MSC_VER && _MSC_VER >=1310
Chris@16:     //probably other compilers could come here as well
Chris@16:     typedef typename detail::test_get_pytype<Conversion> HasGetPytype;
Chris@16: #else
Chris@16:     typedef boost::mpl::bool_<has_get_pytype> HasGetPytype;
Chris@16: #endif
Chris@16: 
Chris@16:     static PyTypeObject const* get_pytype_1(boost::mpl::true_ *)
Chris@16:     {
Chris@16:         return Conversion::get_pytype();
Chris@16:     }
Chris@16: 
Chris@16:     static PyTypeObject const* get_pytype_1(boost::mpl::false_ *)
Chris@16:     {
Chris@16:         return 0;
Chris@16:     }
Chris@16:     static PyTypeObject const* get_pytype_impl()
Chris@16:     {
Chris@16:         return get_pytype_1((HasGetPytype*)0);
Chris@16:     }
Chris@16: #endif
Chris@16:     
Chris@16:     to_python_converter();
Chris@16: };
Chris@16: 
Chris@16: //
Chris@16: // implementation
Chris@16: //
Chris@16: 
Chris@16: template <class T, class Conversion ,bool has_get_pytype>
Chris@16: to_python_converter<T,Conversion, has_get_pytype>::to_python_converter()
Chris@16: {
Chris@16:     typedef converter::as_to_python_function<
Chris@16:         T, Conversion
Chris@16:         > normalized;
Chris@16:             
Chris@16:     converter::registry::insert(
Chris@16:         &normalized::convert
Chris@16:         , type_id<T>()
Chris@16: #ifndef BOOST_PYTHON_NO_PY_SIGNATURES
Chris@16:         , &get_pytype_impl
Chris@16: #endif
Chris@16:         );
Chris@16: }
Chris@16: 
Chris@16: }} // namespace boost::python
Chris@16: 
Chris@16: #endif // TO_PYTHON_CONVERTER_DWA200221_HPP
Chris@16: