1 files changed, 124 insertions, 0 deletions
diff --git a/boost/python/object/pickle_support.hpp b/boost/python/object/pickle_support.hpp
new file mode 100644
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+++ b/boost/python/object/pickle_support.hpp
@@ -0,0 +1,124 @@
+//  (C) Copyright R.W. Grosse-Kunstleve 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 BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP
+# define BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP
+
+# include <boost/python/detail/prefix.hpp>
+
+namespace boost { namespace python {
+
+namespace api
+{
+  class object;
+}
+using api::object;
+class tuple;
+
+BOOST_PYTHON_DECL object const& make_instance_reduce_function();
+
+struct pickle_suite;
+
+namespace error_messages {
+
+  template <class T>
+  struct missing_pickle_suite_function_or_incorrect_signature {};
+
+  inline void must_be_derived_from_pickle_suite(pickle_suite const&) {}
+}
+
+namespace detail { struct pickle_suite_registration; }
+
+struct pickle_suite
+{
+  private:
+    struct inaccessible {};
+    friend struct detail::pickle_suite_registration;
+  public:
+    static inaccessible* getinitargs() { return 0; }
+    static inaccessible* getstate() { return 0; }
+    static inaccessible* setstate() { return 0; }
+    static bool getstate_manages_dict() { return false; }
+};
+
+namespace detail {
+
+  struct pickle_suite_registration
+  {
+    typedef pickle_suite::inaccessible inaccessible;
+
+    template <class Class_, class Tgetinitargs>
+    static
+    void
+    register_(
+      Class_& cl,
+      tuple (*getinitargs_fn)(Tgetinitargs),
+      inaccessible* (* /*getstate_fn*/)(),
+      inaccessible* (* /*setstate_fn*/)(),
+      bool)
+    {
+      cl.enable_pickling_(false);
+      cl.def("__getinitargs__", getinitargs_fn);
+    }
+
+    template <class Class_,
+              class Rgetstate, class Tgetstate,
+              class Tsetstate, class Ttuple>
+    static
+    void
+    register_(
+      Class_& cl,
+      inaccessible* (* /*getinitargs_fn*/)(),
+      Rgetstate (*getstate_fn)(Tgetstate),
+      void (*setstate_fn)(Tsetstate, Ttuple),
+      bool getstate_manages_dict)
+    {
+      cl.enable_pickling_(getstate_manages_dict);
+      cl.def("__getstate__", getstate_fn);
+      cl.def("__setstate__", setstate_fn);
+    }
+
+    template <class Class_,
+              class Tgetinitargs,
+              class Rgetstate, class Tgetstate,
+              class Tsetstate, class Ttuple>
+    static
+    void
+    register_(
+      Class_& cl,
+      tuple (*getinitargs_fn)(Tgetinitargs),
+      Rgetstate (*getstate_fn)(Tgetstate),
+      void (*setstate_fn)(Tsetstate, Ttuple),
+      bool getstate_manages_dict)
+    {
+      cl.enable_pickling_(getstate_manages_dict);
+      cl.def("__getinitargs__", getinitargs_fn);
+      cl.def("__getstate__", getstate_fn);
+      cl.def("__setstate__", setstate_fn);
+    }
+
+    template <class Class_>
+    static
+    void
+    register_(
+      Class_&,
+      ...)
+    {
+      typedef typename
+        error_messages::missing_pickle_suite_function_or_incorrect_signature<
+          Class_>::error_type error_type;
+    }
+  };
+
+  template <typename PickleSuiteType>
+  struct pickle_suite_finalize
+  : PickleSuiteType,
+    pickle_suite_registration
+  {};
+
+} // namespace detail
+
+}} // namespace boost::python
+
+#endif // BOOST_PYTHON_OBJECT_PICKLE_SUPPORT_RWGK20020603_HPP