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