| // 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 |