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+// 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 RETURN_FROM_PYTHON_DWA200265_HPP
+# define RETURN_FROM_PYTHON_DWA200265_HPP
+
+# include <boost/python/converter/from_python.hpp>
+# include <boost/python/converter/rvalue_from_python_data.hpp>
+# include <boost/python/converter/registered.hpp>
+# include <boost/python/converter/registered_pointee.hpp>
+# include <boost/python/converter/object_manager.hpp>
+# include <boost/python/detail/void_ptr.hpp>
+# include <boost/python/detail/void_return.hpp>
+# include <boost/python/errors.hpp>
+# include <boost/python/handle.hpp>
+# include <boost/type_traits/has_trivial_copy.hpp>
+# include <boost/mpl/and.hpp>
+# include <boost/mpl/bool.hpp>
+
+namespace boost { namespace python { namespace converter { 
+
+template <class T> struct is_object_manager;
+
+namespace detail
+{
+  template <class T>
+  struct return_pointer_from_python
+  {
+      typedef T result_type;
+      T operator()(PyObject*) const;
+  };
+  
+  template <class T>
+  struct return_reference_from_python
+  {
+      typedef T result_type;
+      T operator()(PyObject*) const;
+  };
+  
+  template <class T>
+  struct return_rvalue_from_python
+  {
+      typedef T result_type;
+
+      return_rvalue_from_python();
+      result_type operator()(PyObject*);
+   private:
+      rvalue_from_python_data<T> m_data;
+  };
+  
+  template <class T>
+  struct return_object_manager_from_python
+  {
+      typedef T result_type;
+      result_type operator()(PyObject*) const;
+  };
+  
+  template <class T>
+  struct select_return_from_python
+  {
+      BOOST_STATIC_CONSTANT(
+          bool, obj_mgr = is_object_manager<T>::value);
+
+      BOOST_STATIC_CONSTANT(
+          bool, ptr = is_pointer<T>::value);
+    
+      BOOST_STATIC_CONSTANT(
+          bool, ref = is_reference<T>::value);
+
+      typedef typename mpl::if_c<
+          obj_mgr
+          , return_object_manager_from_python<T>
+          , typename mpl::if_c<
+              ptr
+              , return_pointer_from_python<T>
+              , typename mpl::if_c<
+                  ref
+                  , return_reference_from_python<T>
+                  , return_rvalue_from_python<T>
+                >::type
+            >::type
+         >::type type;
+  };
+}
+
+template <class T>
+struct return_from_python
+    : detail::select_return_from_python<T>::type
+{
+};
+
+// Specialization as a convenience for call and call_method
+template <>
+struct return_from_python<void>
+{
+    typedef python::detail::returnable<void>::type result_type;
+    
+    result_type operator()(PyObject* x) const
+    {
+        (void_result_from_python)(x);
+# ifdef BOOST_NO_VOID_RETURNS
+        return result_type();
+# endif 
+    }
+};
+
+//
+// Implementations
+//
+namespace detail
+{
+  template <class T>
+  inline return_rvalue_from_python<T>::return_rvalue_from_python()
+      : m_data(
+          const_cast<registration*>(&registered<T>::converters)
+          )
+  {
+  }
+  
+  template <class T>
+  inline typename return_rvalue_from_python<T>::result_type
+  return_rvalue_from_python<T>::operator()(PyObject* obj)
+  {
+    // Take possession of the source object here.  If the result is in
+    // fact going to be a copy of an lvalue embedded in the object,
+    // and we take possession inside rvalue_result_from_python, it
+    // will be destroyed too early.
+    handle<> holder(obj);
+
+      return *(T*)
+          (rvalue_result_from_python)(obj, m_data.stage1);
+  }
+
+  template <class T>
+  inline T return_reference_from_python<T>::operator()(PyObject* obj) const
+  {
+      return python::detail::void_ptr_to_reference(
+          (reference_result_from_python)(obj, registered<T>::converters)
+          , (T(*)())0);
+  }
+
+  template <class T>
+  inline T return_pointer_from_python<T>::operator()(PyObject* obj) const
+  {
+      return T(
+          (pointer_result_from_python)(obj, registered_pointee<T>::converters)
+          );
+  }
+
+  template <class T>
+  inline T return_object_manager_from_python<T>::operator()(PyObject* obj) const
+  {
+      return T(
+          object_manager_traits<T>::adopt(expect_non_null(obj))
+          );
+  }
+}
+  
+}}} // namespace boost::python::converter
+
+#endif // RETURN_FROM_PYTHON_DWA200265_HPP