#if !defined(BOOST_PP_IS_ITERATING) // 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 CALL_DWA2002411_HPP # define CALL_DWA2002411_HPP # include <boost/python/detail/prefix.hpp> # include <boost/type.hpp> # include <boost/python/converter/arg_to_python.hpp> # include <boost/python/converter/return_from_python.hpp> # include <boost/python/detail/preprocessor.hpp> # include <boost/python/detail/void_return.hpp> # include <boost/preprocessor/comma_if.hpp> # include <boost/preprocessor/iterate.hpp> # include <boost/preprocessor/repeat.hpp> # include <boost/preprocessor/debug/line.hpp> # include <boost/preprocessor/repetition/enum_trailing_params.hpp> # include <boost/preprocessor/repetition/enum_binary_params.hpp> namespace boost { namespace python { # define BOOST_PYTHON_FAST_ARG_TO_PYTHON_GET(z, n, _) \ , converter::arg_to_python<A##n>(a##n).get() # define BOOST_PP_ITERATION_PARAMS_1 (3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/call.hpp>)) # include BOOST_PP_ITERATE() # undef BOOST_PYTHON_FAST_ARG_TO_PYTHON_GET }} // namespace boost::python # endif // CALL_DWA2002411_HPP // For gcc 4.4 compatability, we must include the // BOOST_PP_ITERATION_DEPTH test inside an #else clause. #else // BOOST_PP_IS_ITERATING #if BOOST_PP_ITERATION_DEPTH() == 1 # if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \ && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201))) # line BOOST_PP_LINE(__LINE__, call.hpp) # endif # define N BOOST_PP_ITERATION() template < class R BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class A) > typename detail::returnable<R>::type call(PyObject* callable BOOST_PP_COMMA_IF(N) BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, A, const& a) , boost::type<R>* = 0 ) { PyObject* const result = PyEval_CallFunction( callable , const_cast<char*>("(" BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_FIXED, "O") ")") BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_FAST_ARG_TO_PYTHON_GET, nil) ); // This conversion *must not* be done in the same expression as // the call, because, in the special case where the result is a // reference a Python object which was created by converting a C++ // argument for passing to PyEval_CallFunction, its reference // count will be 2 until the end of the full expression containing // the conversion, and that interferes with dangling // pointer/reference detection. converter::return_from_python<R> converter; return converter(result); } # undef N #endif // BOOST_PP_ITERATION_DEPTH() #endif