1 files changed, 99 insertions, 0 deletions
diff --git a/boost/python/to_python_converter.hpp b/boost/python/to_python_converter.hpp
new file mode 100644
index 0000000000..378d159e97
--- /dev/null
+++ b/boost/python/to_python_converter.hpp
@@ -0,0 +1,99 @@
+// 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
+