YouCompleteMe/cpp/BoostParts/boost/python/call_method.hpp
2012-05-09 21:45:30 -07:00

84 lines
2.8 KiB
C++

#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