sl@0: #if !defined(BOOST_PP_IS_ITERATING)
sl@0: 
sl@0: // Copyright David Abrahams 2004. Distributed under the Boost
sl@0: // Software License, Version 1.0. (See accompanying
sl@0: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
sl@0: #ifndef OVERRIDE_DWA2004721_HPP
sl@0: # define OVERRIDE_DWA2004721_HPP
sl@0: 
sl@0: # include <boost/python/detail/prefix.hpp>
sl@0: 
sl@0: # include <boost/python/converter/return_from_python.hpp>
sl@0: 
sl@0: # include <boost/python/extract.hpp>
sl@0: # include <boost/python/handle.hpp>
sl@0: 
sl@0: #  include <boost/preprocessor/iterate.hpp>
sl@0: #  include <boost/preprocessor/repeat.hpp>
sl@0: #  include <boost/preprocessor/debug/line.hpp>
sl@0: #  include <boost/preprocessor/repetition/enum_params.hpp>
sl@0: #  include <boost/preprocessor/repetition/enum_binary_params.hpp>
sl@0: 
sl@0: #  include <boost/type.hpp>
sl@0: 
sl@0: namespace boost { namespace python {
sl@0: 
sl@0: class override;
sl@0: 
sl@0: namespace detail
sl@0: {
sl@0:   class wrapper_base;
sl@0:   
sl@0:   // The result of calling a method.
sl@0:   class method_result
sl@0:   {
sl@0:    private:
sl@0:       friend class boost::python::override;
sl@0:       explicit method_result(PyObject* x)
sl@0:         : m_obj(x)
sl@0:       {}
sl@0: 
sl@0:    public:
sl@0:       template <class T>
sl@0:       operator T()
sl@0:       {
sl@0:           converter::return_from_python<T> converter;
sl@0:           return converter(m_obj.release());
sl@0:       }
sl@0: 
sl@0: #  if BOOST_WORKAROUND(_MSC_FULL_VER, BOOST_TESTED_AT(140050215))
sl@0:       template <class T>
sl@0:       operator T*()
sl@0:       {
sl@0:           converter::return_from_python<T*> converter;
sl@0:           return converter(m_obj.release());
sl@0:       }
sl@0: #  endif 
sl@0:       
sl@0: #  if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) || BOOST_WORKAROUND(BOOST_INTEL_WIN, >= 900)
sl@0:       // No operator T&
sl@0: #  else
sl@0:       
sl@0:       template <class T>
sl@0:       operator T&() const
sl@0:       {
sl@0:           converter::return_from_python<T&> converter;
sl@0:           return converter(const_cast<handle<>&>(m_obj).release());
sl@0:       }
sl@0: #  endif 
sl@0: 
sl@0:       template <class T>
sl@0:       T as(type<T>* = 0)
sl@0:       {
sl@0:           converter::return_from_python<T> converter;
sl@0:           return converter(m_obj.release());
sl@0:       }
sl@0: 
sl@0:       template <class T>
sl@0:       T unchecked(type<T>* = 0)
sl@0:       {
sl@0:           return extract<T>(m_obj)();
sl@0:       }
sl@0:    private:
sl@0:       mutable handle<> m_obj;
sl@0:   };
sl@0: }
sl@0: 
sl@0: class override : public object
sl@0: {
sl@0:  private:
sl@0:     friend class detail::wrapper_base;
sl@0:     override(handle<> x)
sl@0:       : object(x)
sl@0:     {}
sl@0:     
sl@0:  public:
sl@0:     detail::method_result
sl@0:     operator()() const
sl@0:     {
sl@0:         detail::method_result x(
sl@0:             PyEval_CallFunction(
sl@0:                 this->ptr()
sl@0:               , const_cast<char*>("()")
sl@0:             ));
sl@0:         return x;
sl@0:     }
sl@0: 
sl@0: # define BOOST_PYTHON_fast_arg_to_python_get(z, n, _)   \
sl@0:     , converter::arg_to_python<A##n>(a##n).get()
sl@0: 
sl@0: # define BOOST_PP_ITERATION_PARAMS_1 (3, (1, BOOST_PYTHON_MAX_ARITY, <boost/python/override.hpp>))
sl@0: # include BOOST_PP_ITERATE()
sl@0: 
sl@0: # undef BOOST_PYTHON_fast_arg_to_python_get
sl@0: };
sl@0: 
sl@0: }} // namespace boost::python
sl@0: 
sl@0: #endif // OVERRIDE_DWA2004721_HPP
sl@0: 
sl@0: #else
sl@0: # if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100)                      \
sl@0:         && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
sl@0: #  line BOOST_PP_LINE(__LINE__, override.hpp)
sl@0: # endif 
sl@0: 
sl@0: # define N BOOST_PP_ITERATION()
sl@0: 
sl@0: template <
sl@0:     BOOST_PP_ENUM_PARAMS_Z(1, N, class A)
sl@0:     >
sl@0: detail::method_result
sl@0: operator()( BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, A, const& a) ) const
sl@0: {
sl@0:     detail::method_result x(
sl@0:         PyEval_CallFunction(
sl@0:             this->ptr()
sl@0:           , const_cast<char*>("(" BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_FIXED, "O") ")")
sl@0:             BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_fast_arg_to_python_get, nil)
sl@0:         ));
sl@0:     return x;
sl@0: }
sl@0: 
sl@0: # undef N
sl@0: #endif