| #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_METHOD_DWA2002411_HPP |
| # define CALL_METHOD_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_method.hpp>)) |
| # include BOOST_PP_ITERATE() |
| |
| # undef BOOST_PYTHON_FAST_ARG_TO_PYTHON_GET |
| |
| }} // namespace boost::python |
| |
| # endif // CALL_METHOD_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_method.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_method(PyObject* self, char const* name |
| BOOST_PP_COMMA_IF(N) BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, A, const& a) |
| , boost::type<R>* = 0 |
| ) |
| { |
| PyObject* const result = |
| PyEval_CallMethod( |
| self |
| , const_cast<char*>(name) |
| , 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 // BOOST_PP_IS_ITERATING |