110 lines
3.4 KiB
C++
110 lines
3.4 KiB
C++
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#if !defined(BOOST_PP_IS_ITERATING)
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// Copyright David Abrahams 2001.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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# ifndef MAKE_HOLDER_DWA20011215_HPP
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# define MAKE_HOLDER_DWA20011215_HPP
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# include <boost/python/detail/prefix.hpp>
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# include <boost/python/object/instance.hpp>
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# include <boost/python/converter/registry.hpp>
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#if !defined( BOOST_PYTHON_NO_PY_SIGNATURES) && defined( BOOST_PYTHON_PY_SIGNATURES_PROPER_INIT_SELF_TYPE)
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# include <boost/python/detail/python_type.hpp>
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#endif
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# include <boost/python/object/forward.hpp>
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# include <boost/python/detail/preprocessor.hpp>
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# include <boost/mpl/next.hpp>
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# include <boost/mpl/begin_end.hpp>
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# include <boost/mpl/deref.hpp>
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# include <boost/preprocessor/iterate.hpp>
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# include <boost/preprocessor/iteration/local.hpp>
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# include <boost/preprocessor/repeat.hpp>
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# include <boost/preprocessor/debug/line.hpp>
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# include <boost/preprocessor/repetition/enum_trailing_binary_params.hpp>
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# include <cstddef>
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namespace boost { namespace python { namespace objects {
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template <int nargs> struct make_holder;
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# define BOOST_PYTHON_DO_FORWARD_ARG(z, index, _) , f##index(a##index)
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// specializations...
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# define BOOST_PP_ITERATION_PARAMS_1 (3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/object/make_holder.hpp>))
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# include BOOST_PP_ITERATE()
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# undef BOOST_PYTHON_DO_FORWARD_ARG
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}}} // namespace boost::python::objects
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# endif // MAKE_HOLDER_DWA20011215_HPP
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// For gcc 4.4 compatability, we must include the
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// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
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#else // BOOST_PP_IS_ITERATING
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#if BOOST_PP_ITERATION_DEPTH() == 1
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# if !(BOOST_WORKAROUND(__MWERKS__, > 0x3100) \
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&& BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3201)))
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# line BOOST_PP_LINE(__LINE__, make_holder.hpp)
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# endif
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# define N BOOST_PP_ITERATION()
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template <>
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struct make_holder<N>
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{
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template <class Holder, class ArgList>
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struct apply
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{
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# if N
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// Unrolled iteration through each argument type in ArgList,
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// choosing the type that will be forwarded on to the holder's
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// templated constructor.
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typedef typename mpl::begin<ArgList>::type iter0;
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# define BOOST_PP_LOCAL_MACRO(n) \
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typedef typename mpl::deref<iter##n>::type t##n; \
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typedef typename forward<t##n>::type f##n; \
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typedef typename mpl::next<iter##n>::type \
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BOOST_PP_CAT(iter,BOOST_PP_INC(n)); // Next iterator type
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# define BOOST_PP_LOCAL_LIMITS (0, N-1)
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# include BOOST_PP_LOCAL_ITERATE()
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# endif
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static void execute(
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#if !defined( BOOST_PYTHON_NO_PY_SIGNATURES) && defined( BOOST_PYTHON_PY_SIGNATURES_PROPER_INIT_SELF_TYPE)
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boost::python::detail::python_class<BOOST_DEDUCED_TYPENAME Holder::value_type> *p
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#else
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PyObject *p
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#endif
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BOOST_PP_ENUM_TRAILING_BINARY_PARAMS_Z(1, N, t, a))
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{
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typedef instance<Holder> instance_t;
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void* memory = Holder::allocate(p, offsetof(instance_t, storage), sizeof(Holder));
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try {
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(new (memory) Holder(
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p BOOST_PP_REPEAT_1ST(N, BOOST_PYTHON_DO_FORWARD_ARG, nil)))->install(p);
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}
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catch(...) {
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Holder::deallocate(p, memory);
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throw;
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}
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}
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};
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};
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# undef N
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#endif // BOOST_PP_ITERATION_DEPTH()
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#endif
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