147 lines
4.1 KiB
C++
147 lines
4.1 KiB
C++
// Copyright David Abrahams 2002.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef OBJECT_SLICES_DWA2002615_HPP
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# define OBJECT_SLICES_DWA2002615_HPP
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# include <boost/python/detail/prefix.hpp>
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# include <boost/python/proxy.hpp>
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# include <boost/python/object_core.hpp>
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# include <boost/python/object_protocol.hpp>
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# include <boost/python/handle.hpp>
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# include <utility>
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namespace boost { namespace python { namespace api {
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struct const_slice_policies
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{
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typedef std::pair<handle<>, handle<> > key_type;
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static object get(object const& target, key_type const& key);
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};
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struct slice_policies : const_slice_policies
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{
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static object const& set(object const& target, key_type const& key, object const& value);
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static void del(object const& target, key_type const& key);
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};
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template <class T, class U>
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inline slice_policies::key_type slice_key(T x, U y)
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{
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return slice_policies::key_type(handle<>(x), handle<>(y));
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}
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//
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// implementation
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//
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template <class U>
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object_slice
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object_operators<U>::slice(object_cref start, object_cref finish)
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{
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object_cref2 x = *static_cast<U*>(this);
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return object_slice(x, api::slice_key(borrowed(start.ptr()), borrowed(finish.ptr())));
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}
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template <class U>
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const_object_slice
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object_operators<U>::slice(object_cref start, object_cref finish) const
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{
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object_cref2 x = *static_cast<U const*>(this);
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return const_object_slice(x, api::slice_key(borrowed(start.ptr()), borrowed(finish.ptr())));
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}
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template <class U>
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object_slice
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object_operators<U>::slice(slice_nil, object_cref finish)
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{
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object_cref2 x = *static_cast<U*>(this);
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return object_slice(x, api::slice_key(allow_null((PyObject*)0), borrowed(finish.ptr())));
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}
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template <class U>
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const_object_slice
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object_operators<U>::slice(slice_nil, object_cref finish) const
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{
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object_cref2 x = *static_cast<U const*>(this);
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return const_object_slice(x, api::slice_key(allow_null((PyObject*)0), borrowed(finish.ptr())));
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}
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template <class U>
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object_slice
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object_operators<U>::slice(slice_nil, slice_nil)
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{
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object_cref2 x = *static_cast<U*>(this);
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return object_slice(x, api::slice_key(allow_null((PyObject*)0), allow_null((PyObject*)0)));
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}
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template <class U>
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const_object_slice
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object_operators<U>::slice(slice_nil, slice_nil) const
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{
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object_cref2 x = *static_cast<U const*>(this);
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return const_object_slice(x, api::slice_key(allow_null((PyObject*)0), allow_null((PyObject*)0)));
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}
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template <class U>
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object_slice
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object_operators<U>::slice(object_cref start, slice_nil)
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{
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object_cref2 x = *static_cast<U*>(this);
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return object_slice(x, api::slice_key(borrowed(start.ptr()), allow_null((PyObject*)0)));
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}
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template <class U>
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const_object_slice
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object_operators<U>::slice(object_cref start, slice_nil) const
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{
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object_cref2 x = *static_cast<U const*>(this);
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return const_object_slice(x, api::slice_key(borrowed(start.ptr()), allow_null((PyObject*)0)));
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}
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template <class U>
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template <class T, class V>
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inline const_object_slice
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object_operators<U>::slice(T const& start, V const& end) const
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{
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return this->slice(
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typename slice_bound<T>::type(start)
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, typename slice_bound<V>::type(end));
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}
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template <class U>
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template <class T, class V>
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inline object_slice
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object_operators<U>::slice(T const& start, V const& end)
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{
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return this->slice(
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typename slice_bound<T>::type(start)
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, typename slice_bound<V>::type(end));
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}
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inline object const_slice_policies::get(object const& target, key_type const& key)
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{
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return getslice(target, key.first, key.second);
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}
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inline object const& slice_policies::set(
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object const& target
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, key_type const& key
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, object const& value)
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{
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setslice(target, key.first, key.second, value);
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return value;
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}
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inline void slice_policies::del(
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object const& target
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, key_type const& key)
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{
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delslice(target, key.first, key.second);
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}
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}}} // namespace boost::python::api
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#endif // OBJECT_SLICES_DWA2002615_HPP
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