1 // Copyright David Abrahams 2002.
2 // Distributed under the Boost Software License, Version 1.0. (See
3 // accompanying file LICENSE_1_0.txt or copy at
4 // http://www.boost.org/LICENSE_1_0.txt)
5 #ifndef FUNCTION_HANDLE_DWA2002725_HPP
6 # define FUNCTION_HANDLE_DWA2002725_HPP
7 # include <boost/python/handle.hpp>
8 # include <boost/python/detail/caller.hpp>
9 # include <boost/python/default_call_policies.hpp>
10 # include <boost/python/object/py_function.hpp>
11 # include <boost/python/signature.hpp>
13 namespace boost { namespace python { namespace objects {
15 BOOST_PYTHON_DECL handle<> function_handle_impl(py_function const& f);
17 // Just like function_object, but returns a handle<> instead. Using
18 // this for arg_to_python<> allows us to break a circular dependency
19 // between object and arg_to_python.
20 template <class F, class Signature>
21 inline handle<> function_handle(F const& f, Signature)
23 enum { n_arguments = mpl::size<Signature>::value - 1 };
25 return objects::function_handle_impl(
26 python::detail::caller<
27 F,default_call_policies,Signature
29 f, default_call_policies()
34 // Just like make_function, but returns a handle<> intead. Same
35 // reasoning as above.
37 handle<> make_function_handle(F f)
39 return objects::function_handle(f, python::detail::get_signature(f));
42 }}} // namespace boost::python::objects
44 #endif // FUNCTION_HANDLE_DWA2002725_HPP