100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
// 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
|
|
|