Chris@16: #if !defined(BOOST_PP_IS_ITERATING)
Chris@16: 
Chris@16: // Copyright David Abrahams 2004. Distributed under the Boost
Chris@16: // Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: #ifndef OVERRIDE_DWA2004721_HPP
Chris@16: # define OVERRIDE_DWA2004721_HPP
Chris@16: 
Chris@16: # include <boost/python/detail/prefix.hpp>
Chris@16: 
Chris@16: # include <boost/python/converter/return_from_python.hpp>
Chris@16: 
Chris@16: # include <boost/python/extract.hpp>
Chris@16: # include <boost/python/handle.hpp>
Chris@16: 
Chris@16: #  include <boost/preprocessor/iterate.hpp>
Chris@16: #  include <boost/preprocessor/repeat.hpp>
Chris@16: #  include <boost/preprocessor/debug/line.hpp>
Chris@16: #  include <boost/preprocessor/repetition/enum_params.hpp>
Chris@16: #  include <boost/preprocessor/repetition/enum_binary_params.hpp>
Chris@16: 
Chris@16: #  include <boost/type.hpp>
Chris@16: 
Chris@16: namespace boost { namespace python {
Chris@16: 
Chris@16: class override;
Chris@16: 
Chris@16: namespace detail
Chris@16: {
Chris@16:   class wrapper_base;
Chris@16:   
Chris@16:   // The result of calling a method.
Chris@16:   class method_result
Chris@16:   {
Chris@16:    private:
Chris@16:       friend class boost::python::override;
Chris@16:       explicit method_result(PyObject* x)
Chris@16:         : m_obj(x)
Chris@16:       {}
Chris@16: 
Chris@16:    public:
Chris@16:       template <class T>
Chris@16:       operator T()
Chris@16:       {
Chris@16:           converter::return_from_python<T> converter;
Chris@16:           return converter(m_obj.release());
Chris@16:       }
Chris@16: 
Chris@16: #  if BOOST_WORKAROUND(_MSC_FULL_VER, BOOST_TESTED_AT(140050215))
Chris@16:       template <class T>
Chris@16:       operator T*()
Chris@16:       {
Chris@16:           converter::return_from_python<T*> converter;
Chris@16:           return converter(m_obj.release());
Chris@16:       }
Chris@16: #  endif 
Chris@16:       
Chris@16: #  if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) || BOOST_WORKAROUND(BOOST_INTEL_WIN, >= 900)
Chris@16:       // No operator T&
Chris@16: #  else
Chris@16:       
Chris@16:       template <class T>
Chris@16:       operator T&() const
Chris@16:       {
Chris@16:           converter::return_from_python<T&> converter;
Chris@16:           return converter(const_cast<handle<>&>(m_obj).release());
Chris@16:       }
Chris@16: #  endif 
Chris@16: 
Chris@16:       template <class T>
Chris@16:       T as(type<T>* = 0)
Chris@16:       {
Chris@16:           converter::return_from_python<T> converter;
Chris@16:           return converter(m_obj.release());
Chris@16:       }
Chris@16: 
Chris@16:       template <class T>
Chris@16:       T unchecked(type<T>* = 0)
Chris@16:       {
Chris@16:           return extract<T>(m_obj.get())();
Chris@16:       }
Chris@16:    private:
Chris@16:       mutable handle<> m_obj;
Chris@16:   };
Chris@16: }
Chris@16: 
Chris@16: class override : public object
Chris@16: {
Chris@16:  private:
Chris@16:     friend class detail::wrapper_base;
Chris@16:     override(handle<> x)
Chris@16:       : object(x)
Chris@16:     {}
Chris@16:     
Chris@16:  public:
Chris@16:     detail::method_result
Chris@16:     operator()() const
Chris@16:     {
Chris@16:         detail::method_result x(
Chris@16:             PyEval_CallFunction(
Chris@16:                 this->ptr()
Chris@16:               , const_cast<char*>("()")
Chris@16:             ));
Chris@16:         return x;
Chris@16:     }
Chris@16: 
Chris@16: # define BOOST_PYTHON_fast_arg_to_python_get(z, n, _)   \
Chris@16:     , converter::arg_to_python<A##n>(a##n).get()
Chris@16: 
Chris@16: # define BOOST_PP_ITERATION_PARAMS_1 (3, (1, BOOST_PYTHON_MAX_ARITY, <boost/python/override.hpp>))
Chris@16: # include BOOST_PP_ITERATE()
Chris@16: 
Chris@16: # undef BOOST_PYTHON_fast_arg_to_python_get
Chris@16: };
Chris@16: 
Chris@16: }} // namespace boost::python
Chris@16: 
Chris@16: #endif // OVERRIDE_DWA2004721_HPP
Chris@16: 
Chris@16: #else
Chris@16: # if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100)                      \
Chris@16:         && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
Chris@16: #  line BOOST_PP_LINE(__LINE__, override.hpp)
Chris@16: # endif 
Chris@16: 
Chris@16: # define N BOOST_PP_ITERATION()
Chris@16: 
Chris@16: template <
Chris@16:     BOOST_PP_ENUM_PARAMS_Z(1, N, class A)
Chris@16:     >
Chris@16: detail::method_result
Chris@16: operator()( BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, A, const& a) ) const
Chris@16: {
Chris@16:     detail::method_result x(
Chris@16:         PyEval_CallFunction(
Chris@16:             this->ptr()
Chris@16:           , const_cast<char*>("(" BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_FIXED, "O") ")")
Chris@16:             BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_fast_arg_to_python_get, nil)
Chris@16:         ));
Chris@16:     return x;
Chris@16: }
Chris@16: 
Chris@16: # undef N
Chris@16: #endif