Chris@16: //  (C) Copyright R.W. Grosse-Kunstleve 2002.
Chris@16: //  Distributed under the Boost Software License, Version 1.0. (See
Chris@16: //  accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: #ifndef BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP
Chris@16: # define BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP
Chris@16: 
Chris@16: # include <boost/python/detail/prefix.hpp>
Chris@16: 
Chris@16: namespace boost { namespace python {
Chris@16: 
Chris@16: namespace api
Chris@16: {
Chris@16:   class object;
Chris@16: }
Chris@16: using api::object;
Chris@16: class tuple;
Chris@16: 
Chris@16: BOOST_PYTHON_DECL object const& make_instance_reduce_function();
Chris@16: 
Chris@16: struct pickle_suite;
Chris@16: 
Chris@16: namespace error_messages {
Chris@16: 
Chris@16:   template <class T>
Chris@16:   struct missing_pickle_suite_function_or_incorrect_signature {};
Chris@16: 
Chris@16:   inline void must_be_derived_from_pickle_suite(pickle_suite const&) {}
Chris@16: }
Chris@16: 
Chris@16: namespace detail { struct pickle_suite_registration; }
Chris@16: 
Chris@16: struct pickle_suite
Chris@16: {
Chris@16:   private:
Chris@16:     struct inaccessible {};
Chris@16:     friend struct detail::pickle_suite_registration;
Chris@16:   public:
Chris@16:     static inaccessible* getinitargs() { return 0; }
Chris@16:     static inaccessible* getstate() { return 0; }
Chris@16:     static inaccessible* setstate() { return 0; }
Chris@16:     static bool getstate_manages_dict() { return false; }
Chris@16: };
Chris@16: 
Chris@16: namespace detail {
Chris@16: 
Chris@16:   struct pickle_suite_registration
Chris@16:   {
Chris@16:     typedef pickle_suite::inaccessible inaccessible;
Chris@16: 
Chris@16:     template <class Class_, class Tgetinitargs>
Chris@16:     static
Chris@16:     void
Chris@16:     register_(
Chris@16:       Class_& cl,
Chris@16:       tuple (*getinitargs_fn)(Tgetinitargs),
Chris@16:       inaccessible* (* /*getstate_fn*/)(),
Chris@16:       inaccessible* (* /*setstate_fn*/)(),
Chris@16:       bool)
Chris@16:     {
Chris@16:       cl.enable_pickling_(false);
Chris@16:       cl.def("__getinitargs__", getinitargs_fn);
Chris@16:     }
Chris@16: 
Chris@16:     template <class Class_,
Chris@16:               class Rgetstate, class Tgetstate,
Chris@16:               class Tsetstate, class Ttuple>
Chris@16:     static
Chris@16:     void
Chris@16:     register_(
Chris@16:       Class_& cl,
Chris@16:       inaccessible* (* /*getinitargs_fn*/)(),
Chris@16:       Rgetstate (*getstate_fn)(Tgetstate),
Chris@16:       void (*setstate_fn)(Tsetstate, Ttuple),
Chris@16:       bool getstate_manages_dict)
Chris@16:     {
Chris@16:       cl.enable_pickling_(getstate_manages_dict);
Chris@16:       cl.def("__getstate__", getstate_fn);
Chris@16:       cl.def("__setstate__", setstate_fn);
Chris@16:     }
Chris@16: 
Chris@16:     template <class Class_,
Chris@16:               class Tgetinitargs,
Chris@16:               class Rgetstate, class Tgetstate,
Chris@16:               class Tsetstate, class Ttuple>
Chris@16:     static
Chris@16:     void
Chris@16:     register_(
Chris@16:       Class_& cl,
Chris@16:       tuple (*getinitargs_fn)(Tgetinitargs),
Chris@16:       Rgetstate (*getstate_fn)(Tgetstate),
Chris@16:       void (*setstate_fn)(Tsetstate, Ttuple),
Chris@16:       bool getstate_manages_dict)
Chris@16:     {
Chris@16:       cl.enable_pickling_(getstate_manages_dict);
Chris@16:       cl.def("__getinitargs__", getinitargs_fn);
Chris@16:       cl.def("__getstate__", getstate_fn);
Chris@16:       cl.def("__setstate__", setstate_fn);
Chris@16:     }
Chris@16: 
Chris@16:     template <class Class_>
Chris@16:     static
Chris@16:     void
Chris@16:     register_(
Chris@16:       Class_&,
Chris@16:       ...)
Chris@16:     {
Chris@16:       typedef typename
Chris@16:         error_messages::missing_pickle_suite_function_or_incorrect_signature<
Chris@16:           Class_>::error_type error_type;
Chris@16:     }
Chris@16:   };
Chris@16: 
Chris@16:   template <typename PickleSuiteType>
Chris@16:   struct pickle_suite_finalize
Chris@16:   : PickleSuiteType,
Chris@16:     pickle_suite_registration
Chris@16:   {};
Chris@16: 
Chris@16: } // namespace detail
Chris@16: 
Chris@16: }} // namespace boost::python
Chris@16: 
Chris@16: #endif // BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP