1 files changed, 148 insertions, 0 deletions
diff --git a/boost/python/object_slices.hpp b/boost/python/object_slices.hpp
new file mode 100644
index 0000000000..748c2e954b
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+++ b/boost/python/object_slices.hpp
@@ -0,0 +1,148 @@
+// 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 OBJECT_SLICES_DWA2002615_HPP
+# define OBJECT_SLICES_DWA2002615_HPP
+
+# include <boost/python/detail/prefix.hpp>
+
+# include <boost/python/proxy.hpp>
+# include <boost/python/object_core.hpp>
+# include <boost/python/object_protocol.hpp>
+# include <boost/python/handle.hpp>
+# include <utility>
+
+namespace boost { namespace python { namespace api {
+
+struct const_slice_policies
+{
+    typedef std::pair<handle<>, handle<> > key_type;
+    static object get(object const& target, key_type const& key);
+};
+  
+struct slice_policies : const_slice_policies
+{
+    static object const& set(object const& target, key_type const& key, object const& value);
+    static void del(object const& target, key_type const& key);
+};
+
+template <class T, class U>
+inline slice_policies::key_type slice_key(T x, U y)
+{
+    return slice_policies::key_type(handle<>(x), handle<>(y));
+}
+    
+//
+// implementation
+//
+template <class U>
+object_slice
+object_operators<U>::slice(object_cref start, object_cref finish)
+{
+    object_cref2 x = *static_cast<U*>(this);
+    return object_slice(x, api::slice_key(borrowed(start.ptr()), borrowed(finish.ptr())));
+}
+
+template <class U>
+const_object_slice
+object_operators<U>::slice(object_cref start, object_cref finish) const
+{
+    object_cref2 x = *static_cast<U const*>(this);
+    return const_object_slice(x, api::slice_key(borrowed(start.ptr()), borrowed(finish.ptr())));
+}
+
+template <class U>
+object_slice
+object_operators<U>::slice(slice_nil, object_cref finish)
+{
+    object_cref2 x = *static_cast<U*>(this);
+    return object_slice(x, api::slice_key(allow_null((PyObject*)0), borrowed(finish.ptr())));
+}
+
+template <class U>
+const_object_slice
+object_operators<U>::slice(slice_nil, object_cref finish) const
+{
+    object_cref2 x = *static_cast<U const*>(this);
+    return const_object_slice(x, api::slice_key(allow_null((PyObject*)0), borrowed(finish.ptr())));
+}
+
+template <class U>
+object_slice
+object_operators<U>::slice(slice_nil, slice_nil)
+{
+    object_cref2 x = *static_cast<U*>(this);
+    return object_slice(x, api::slice_key(allow_null((PyObject*)0), allow_null((PyObject*)0)));
+}
+
+template <class U>
+const_object_slice
+object_operators<U>::slice(slice_nil, slice_nil) const
+{
+    object_cref2 x = *static_cast<U const*>(this);
+    return const_object_slice(x, api::slice_key(allow_null((PyObject*)0), allow_null((PyObject*)0)));
+}
+
+template <class U>
+object_slice
+object_operators<U>::slice(object_cref start, slice_nil)
+{
+    object_cref2 x = *static_cast<U*>(this);
+    return object_slice(x, api::slice_key(borrowed(start.ptr()), allow_null((PyObject*)0)));
+}
+
+template <class U>
+const_object_slice
+object_operators<U>::slice(object_cref start, slice_nil) const
+{
+    object_cref2 x = *static_cast<U const*>(this);
+    return const_object_slice(x, api::slice_key(borrowed(start.ptr()), allow_null((PyObject*)0)));
+}
+# if !defined(BOOST_MSVC) || BOOST_MSVC > 1300
+template <class U>
+template <class T, class V>
+inline const_object_slice
+object_operators<U>::slice(T const& start, V const& end) const
+{
+    return this->slice(
+        typename slice_bound<T>::type(start)
+        , typename slice_bound<V>::type(end));
+}
+
+template <class U>
+template <class T, class V>
+inline object_slice
+object_operators<U>::slice(T const& start, V const& end)
+{
+    return this->slice(
+        typename slice_bound<T>::type(start)
+        , typename slice_bound<V>::type(end));
+}
+# endif 
+
+
+inline object const_slice_policies::get(object const& target, key_type const& key)
+{
+    return getslice(target, key.first, key.second);
+}
+
+inline object const& slice_policies::set(
+    object const& target
+    , key_type const& key
+    , object const& value)
+{
+    setslice(target, key.first, key.second, value);
+    return value;
+}
+
+inline void slice_policies::del(
+    object const& target
+    , key_type const& key)
+{
+    delslice(target, key.first, key.second);
+}
+
+}}} // namespace boost::python::api
+
+#endif // OBJECT_SLICES_DWA2002615_HPP