// 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 |