| #if !defined(BOOST_PP_IS_ITERATING) |
| |
| // Copyright David Abrahams 2001. |
| // 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 MAKE_HOLDER_DWA20011215_HPP |
| # define MAKE_HOLDER_DWA20011215_HPP |
| |
| # include <boost/python/detail/prefix.hpp> |
| |
| # include <boost/python/object/instance.hpp> |
| # include <boost/python/converter/registry.hpp> |
| #if !defined( BOOST_PYTHON_NO_PY_SIGNATURES) && defined( BOOST_PYTHON_PY_SYGNATURES_PROPER_INIT_SELF_TYPE) |
| # include <boost/python/detail/python_type.hpp> |
| #endif |
| |
| # include <boost/python/object/forward.hpp> |
| # include <boost/python/detail/preprocessor.hpp> |
| |
| # include <boost/mpl/next.hpp> |
| # include <boost/mpl/begin_end.hpp> |
| # include <boost/mpl/deref.hpp> |
| |
| # include <boost/preprocessor/iterate.hpp> |
| # include <boost/preprocessor/iteration/local.hpp> |
| # include <boost/preprocessor/repeat.hpp> |
| # include <boost/preprocessor/debug/line.hpp> |
| # include <boost/preprocessor/repetition/enum_trailing_binary_params.hpp> |
| |
| # include <cstddef> |
| |
| namespace boost { namespace python { namespace objects { |
| |
| template <int nargs> struct make_holder; |
| |
| # define BOOST_PYTHON_DO_FORWARD_ARG(z, index, _) , f##index(a##index) |
| |
| // specializations... |
| # define BOOST_PP_ITERATION_PARAMS_1 (3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/object/make_holder.hpp>)) |
| # include BOOST_PP_ITERATE() |
| |
| # undef BOOST_PYTHON_DO_FORWARD_ARG |
| |
| }}} // namespace boost::python::objects |
| |
| # endif // MAKE_HOLDER_DWA20011215_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__, make_holder.hpp) |
| # endif |
| |
| # define N BOOST_PP_ITERATION() |
| |
| template <> |
| struct make_holder<N> |
| { |
| template <class Holder, class ArgList> |
| struct apply |
| { |
| # if N |
| // Unrolled iteration through each argument type in ArgList, |
| // choosing the type that will be forwarded on to the holder's |
| // templated constructor. |
| typedef typename mpl::begin<ArgList>::type iter0; |
| |
| # define BOOST_PP_LOCAL_MACRO(n) \ |
| typedef typename mpl::deref<iter##n>::type t##n; \ |
| typedef typename forward<t##n>::type f##n; \ |
| typedef typename mpl::next<iter##n>::type \ |
| BOOST_PP_CAT(iter,BOOST_PP_INC(n)); // Next iterator type |
| |
| # define BOOST_PP_LOCAL_LIMITS (0, N-1) |
| # include BOOST_PP_LOCAL_ITERATE() |
| # endif |
| |
| static void execute( |
| #if !defined( BOOST_PYTHON_NO_PY_SIGNATURES) && defined( BOOST_PYTHON_PY_SYGNATURES_PROPER_INIT_SELF_TYPE) |
| boost::python::detail::python_class<BOOST_DEDUCED_TYPENAME Holder::value_type> *p |
| #else |
| PyObject *p |
| #endif |
| BOOST_PP_ENUM_TRAILING_BINARY_PARAMS_Z(1, N, t, a)) |
| { |
| typedef instance<Holder> instance_t; |
| |
| void* memory = Holder::allocate(p, offsetof(instance_t, storage), sizeof(Holder)); |
| try { |
| (new (memory) Holder( |
| p BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_DO_FORWARD_ARG, nil)))->install(p); |
| } |
| catch(...) { |
| Holder::deallocate(p, memory); |
| throw; |
| } |
| } |
| }; |
| }; |
| |
| # undef N |
| |
| #endif // BOOST_PP_ITERATION_DEPTH() |
| #endif |