boost/python/tuple.hpp

0001 // Copyright David Abrahams 2002.
0002 // Distributed under the Boost Software License, Version 1.0. (See
0003 // accompanying file LICENSE_1_0.txt or copy at
0004 // http://www.boost.org/LICENSE_1_0.txt)
0005 #ifndef TUPLE_20020706_HPP
0006 #define TUPLE_20020706_HPP
0007
0008 # include <boost/python/detail/prefix.hpp>
0009
0010 #include <boost/python/object.hpp>
0011 #include <boost/python/converter/pytype_object_mgr_traits.hpp>
0012 #include <boost/preprocessor/enum_params.hpp>
0013 #include <boost/preprocessor/repetition/enum_binary_params.hpp>
0014
0015 namespace boost { namespace python {
0016
0017 namespace detail
0018 {
0019   struct BOOST_PYTHON_DECL tuple_base : object
0020   {
0021    protected:
0022       tuple_base();
0023       tuple_base(object_cref sequence);
0024
0025       BOOST_PYTHON_FORWARD_OBJECT_CONSTRUCTORS(tuple_base, object)
0026
0027    private:
0028       static detail::new_reference call(object const&);
0029   };
0030 }
0031
0032 class tuple : public detail::tuple_base
0033 {
0034     typedef detail::tuple_base base;
0035  public:
0036     tuple() {}
0037
0038     template <class T>
0039     explicit tuple(T const& sequence)
0040         : base(object(sequence))
0041     {
0042     }
0043
0044  public: // implementation detail -- for internal use only
0045     BOOST_PYTHON_FORWARD_OBJECT_CONSTRUCTORS(tuple, base)
0046 };
0047
0048 //
0049 // Converter Specializations    // $$$ JDG $$$ moved here to prevent
0050 //                              // G++ bug complaining specialization
0051                                 // provided after instantiation
0052 namespace converter
0053 {
0054   template <>
0055   struct object_manager_traits<tuple>
0056       : pytype_object_manager_traits<&PyTuple_Type,tuple>
0057   {
0058   };
0059 }
0060
0061 // for completeness
0062 inline tuple make_tuple() { return tuple(); }
0063
0064 # define BOOST_PP_ITERATION_PARAMS_1 (3, (1, BOOST_PYTHON_MAX_ARITY, <boost/python/detail/make_tuple.hpp>))
0065 # include BOOST_PP_ITERATE()
0066
0067 }}  // namespace boost::python
0068
0069 #endif
0070