// Copyright David Abrahams 2001.

// 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_DWA20011214_HPP

# define FUNCTION_DWA20011214_HPP

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

# include <boost/python/args_fwd.hpp>

# include <boost/python/handle.hpp>

# include <boost/function/function2.hpp>

# include <boost/python/object_core.hpp>

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

namespace boost { namespace python { namespace objects { 

struct BOOST_PYTHON_DECL function : PyObject

{

    function(

        py_function const&

        , python::detail::keyword const* names_and_defaults

        , unsigned num_keywords);

    ~function();

    PyObject* call(PyObject*, PyObject*) const;

    // Add an attribute to the name_space with the given name. If it is

    // a function object (this class), and an existing function is

    // already there, add it as an overload.

    static void add_to_namespace(

        object const& name_space, char const* name, object const& attribute);

    static void add_to_namespace(

        object const& name_space, char const* name, object const& attribute, char const* doc);

    object const& doc() const;

    void doc(object const& x);

    object const& name() const;

 private: // helper functions

    object signature(bool show_return_type=false) const;

    object signatures(bool show_return_type=false) const;

    void argument_error(PyObject* args, PyObject* keywords) const;

    void add_overload(handle<function> const&);

 private: // data members

    py_function m_fn;

    handle<function> m_overloads;

    object m_name;

    object m_namespace;

    object m_doc;

    object m_arg_names;

    unsigned m_nkeyword_values;

};

//

// implementations

//

inline object const& function::doc() const

{

    return this->m_doc;

}

inline void function::doc(object const& x)

{

    this->m_doc = x;

}

inline object const& function::name() const

{

    return this->m_name;

}

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

#endif // FUNCTION_DWA20011214_HPP