python/include/boost/python/object/function_handle.hpp at develop · XLTools/python

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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 FUNCTION_HANDLE_DWA2002725_HPP

# define FUNCTION_HANDLE_DWA2002725_HPP

# include <boost/python/handle.hpp>

# include <boost/python/detail/caller.hpp>

# include <boost/python/default_call_policies.hpp>

# include <boost/python/object/py_function.hpp>

# include <boost/python/signature.hpp>

namespace boost { namespace python { namespace objects {

BOOST_PYTHON_DECL handle<> function_handle_impl(py_function const& f);

// Just like function_object, but returns a handle<> instead. Using

// this for arg_to_python<> allows us to break a circular dependency

// between object and arg_to_python.

template <class F, class Signature>

inline handle<> function_handle(F const& f, Signature)

{

enum { n_arguments = mpl::size<Signature>::value - 1 };

return objects::function_handle_impl(

python::detail::caller<

F,default_call_policies,Signature

f, default_call_policies()

)

);

}

// Just like make_function, but returns a handle<> intead. Same

// reasoning as above.

template <class F>

handle<> make_function_handle(F f)

{

return objects::function_handle(f, python::detail::get_signature(f));

}

}}} // namespace boost::python::objects

#endif // FUNCTION_HANDLE_DWA2002725_HPP