sl@0: #if !defined(BOOST_PP_IS_ITERATING)
sl@0: 
sl@0: // Copyright David Abrahams 2002.
sl@0: // Distributed under the Boost Software License, Version 1.0. (See
sl@0: // accompanying file LICENSE_1_0.txt or copy at
sl@0: // http://www.boost.org/LICENSE_1_0.txt)
sl@0: 
sl@0: # ifndef CALL_DWA2002411_HPP
sl@0: #  define CALL_DWA2002411_HPP
sl@0: 
sl@0: # include <boost/python/detail/prefix.hpp>
sl@0: 
sl@0: #  include <boost/type.hpp>
sl@0: 
sl@0: #  include <boost/python/converter/arg_to_python.hpp>
sl@0: #  include <boost/python/converter/return_from_python.hpp>
sl@0: #  include <boost/python/detail/preprocessor.hpp>
sl@0: #  include <boost/python/detail/void_return.hpp>
sl@0: 
sl@0: #  include <boost/preprocessor/comma_if.hpp>
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_trailing_params.hpp>
sl@0: #  include <boost/preprocessor/repetition/enum_binary_params.hpp>
sl@0: 
sl@0: namespace boost { namespace python {
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, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/call.hpp>))
sl@0: #  include BOOST_PP_ITERATE()
sl@0: 
sl@0: #  undef BOOST_PYTHON_FAST_ARG_TO_PYTHON_GET
sl@0: 
sl@0: }} // namespace boost::python
sl@0: 
sl@0: # endif // CALL_DWA2002411_HPP
sl@0: 
sl@0: #elif BOOST_PP_ITERATION_DEPTH() == 1
sl@0: # if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100)                      \
sl@0:         && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
sl@0: #  line BOOST_PP_LINE(__LINE__, call.hpp)
sl@0: # endif
sl@0: 
sl@0: # define N BOOST_PP_ITERATION()
sl@0: 
sl@0: template <
sl@0:     class R
sl@0:     BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class A)
sl@0:     >
sl@0: typename detail::returnable<R>::type
sl@0: call(PyObject* callable
sl@0:     BOOST_PP_COMMA_IF(N) BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, A, const& a)
sl@0:     , boost::type<R>* = 0
sl@0:     )
sl@0: {
sl@0:     PyObject* const result = 
sl@0:         PyEval_CallFunction(
sl@0:             callable
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:     
sl@0:     // This conversion *must not* be done in the same expression as
sl@0:     // the call, because, in the special case where the result is a
sl@0:     // reference a Python object which was created by converting a C++
sl@0:     // argument for passing to PyEval_CallFunction, its reference
sl@0:     // count will be 2 until the end of the full expression containing
sl@0:     // the conversion, and that interferes with dangling
sl@0:     // pointer/reference detection.
sl@0:     converter::return_from_python<R> converter;
sl@0:     return converter(result);
sl@0: }
sl@0: 
sl@0: # undef N
sl@0: 
sl@0: #endif