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Viewing changes to boost/python/detail/signature.hpp

  • Committer: Package Import Robot
  • Author(s): Steve M. Robbins
  • Date: 2012-02-26 00:31:44 UTC
  • Revision ID: package-import@ubuntu.com-20120226003144-eaytp12cbf6ubpms
Tags: upstream-1.49.0
Import upstream version 1.49.0

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boost/python/detail/signature.hpp
 
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#if !defined(BOOST_PP_IS_ITERATING)
 
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// Copyright David Abrahams 2002.
 
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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 SIGNATURE_DWA20021121_HPP
 
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#  define SIGNATURE_DWA20021121_HPP
 
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#  include <boost/python/type_id.hpp>
 
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#  include <boost/python/detail/preprocessor.hpp>
 
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#  include <boost/python/detail/indirect_traits.hpp>
 
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#  include <boost/python/converter/pytype_function.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/mpl/at.hpp>
 
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#  include <boost/mpl/size.hpp>
 
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namespace boost { namespace python { namespace detail { 
 
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struct signature_element
 
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{
 
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    char const* basename;
 
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    converter::pytype_function pytype_f;
 
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    bool lvalue;
 
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};
 
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struct py_func_sig_info
 
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{
 
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    signature_element const *signature;
 
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    signature_element const *ret;
 
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};
 
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template <unsigned> struct signature_arity;
 
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#  define BOOST_PP_ITERATION_PARAMS_1                                            \
 
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        (3, (0, BOOST_PYTHON_MAX_ARITY + 1, <boost/python/detail/signature.hpp>))
 
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#  include BOOST_PP_ITERATE()
 
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// A metafunction returning the base class used for
 
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//
 
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//   signature<class F, class CallPolicies, class Sig>.
 
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//
 
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template <class Sig>
 
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struct signature_base_select
 
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{
 
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    enum { arity = mpl::size<Sig>::value - 1 };
 
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    typedef typename signature_arity<arity>::template impl<Sig> type;
 
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};
 
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template <class Sig>
 
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struct signature
 
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    : signature_base_select<Sig>::type
 
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{
 
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};
 
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}}} // namespace boost::python::detail
 
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# endif // SIGNATURE_DWA20021121_HPP
 
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#else
 
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# define N BOOST_PP_ITERATION()
 
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template <>
 
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struct signature_arity<N>
 
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{
 
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    template <class Sig>
 
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    struct impl
 
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    {
 
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        static signature_element const* elements()
 
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        {
 
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            static signature_element const result[N+2] = {
 
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#ifndef BOOST_PYTHON_NO_PY_SIGNATURES
 
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# define BOOST_PP_LOCAL_MACRO(i)                                                            \
 
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                {                                                                           \
 
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                  type_id<BOOST_DEDUCED_TYPENAME mpl::at_c<Sig,i>::type>().name()           \
 
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                  , &converter::expected_pytype_for_arg<BOOST_DEDUCED_TYPENAME mpl::at_c<Sig,i>::type>::get_pytype   \
 
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                  , indirect_traits::is_reference_to_non_const<BOOST_DEDUCED_TYPENAME mpl::at_c<Sig,i>::type>::value \
 
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                },
 
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#else
 
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# define BOOST_PP_LOCAL_MACRO(i)                                                            \
 
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                {                                                                           \
 
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                  type_id<BOOST_DEDUCED_TYPENAME mpl::at_c<Sig,i>::type>().name()           \
 
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                  , 0 \
 
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                  , indirect_traits::is_reference_to_non_const<BOOST_DEDUCED_TYPENAME mpl::at_c<Sig,i>::type>::value \
 
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                },
 
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#endif
 
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# define BOOST_PP_LOCAL_LIMITS (0, N)
 
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# include BOOST_PP_LOCAL_ITERATE()
 
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                {0,0,0}
 
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            };
 
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            return result;
 
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        }
 
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    };
 
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};
 
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#endif // BOOST_PP_IS_ITERATING 
 
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