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// (C) Copyright Greg Landrum 2003-2006.
// Derived from vector_indexing_suite.hpp,
// which is (C) Copyright Joel de Guzman 2003.
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies. This
// software is provided "as is" without express or implied warranty, and
// with no claim as to its suitability for any purpose.
#ifndef LIST_INDEXING_SUITE_GL20042_HPP
# define LIST_INDEXING_SUITE_GL20042_HPP
# include <boost/python/suite/indexing/vector_indexing_suite.hpp>
# include <boost/python/suite/indexing/indexing_suite.hpp>
# include <boost/python/suite/indexing/container_utils.hpp>
# include <boost/python/iterator.hpp>
#include "pyint_api.h"
namespace boost { namespace python {
// Forward declaration
template <class Container, bool NoProxy, class DerivedPolicies>
class list_indexing_suite;
namespace detail
{
template <class Container, bool NoProxy>
class final_list_derived_policies
: public list_indexing_suite<Container,
NoProxy, final_list_derived_policies<Container, NoProxy> > {};
}
// The vector_indexing_suite class is a predefined indexing_suite derived
// class for wrapping std::vector (and std::vector like) classes. It provides
// all the policies required by the indexing_suite (see indexing_suite).
// Example usage:
//
// class X {...};
//
// ...
//
// class_<std::vector<X> >("XVec")
// .def(vector_indexing_suite<std::vector<X> >())
// ;
//
// By default indexed elements are returned by proxy. This can be
// disabled by supplying *true* in the NoProxy template parameter.
//
template <
class Container,
bool NoProxy = false,
class DerivedPolicies
= detail::final_list_derived_policies<Container, NoProxy> >
class list_indexing_suite
: public indexing_suite<Container, DerivedPolicies, NoProxy>
{
public:
typedef typename Container::value_type data_type;
typedef typename Container::value_type key_type;
typedef typename Container::size_type index_type;
typedef typename Container::size_type size_type;
typedef typename Container::iterator iterator_type;
static
typename mpl::if_<
is_class<data_type>
, data_type&
, data_type
>::type
get_item(Container& container, index_type i)
{
iterator_type pos=moveToPos(container,i);
return *pos;
}
static object
get_slice(Container& container, index_type from, index_type to){
Container res;
iterator_type beg=moveToPos(container,from);
iterator_type end=moveToPos(container,to);
std::copy(beg,end,res.begin());
return object(res);
};
static void
set_item(Container& container, index_type i, data_type const& v){
iterator_type pos=moveToPos(container,i);
*pos = v;
};
static void
set_slice(Container& container, index_type from,
index_type to, data_type const& v){
iterator_type beg=moveToPos(container,from);
iterator_type end=moveToPos(container,to);
container.erase(beg,end);
// FIX: didn't we just invalidate this iterator?
container.insert(beg,v);
};
template <class Iter>
static void
set_slice(Container& container, index_type from,
index_type to, Iter first, Iter last){
iterator_type beg=moveToPos(container,from);
iterator_type end=moveToPos(container,to);
container.erase(beg,end);
// FIX: didn't we just invalidate this iterator?
container.insert(beg,first,last);
};
static void
delete_item(Container& container, index_type i)
{
iterator_type pos=moveToPos(container,i);
container.erase(pos);
}
static void
delete_slice(Container& container, index_type from, index_type to){
iterator_type beg=moveToPos(container,from);
iterator_type end=moveToPos(container,to);
container.erase(beg,end);
}
static size_t
size(Container& container)
{
return container.size();
}
static bool
contains(Container& container, key_type const& key)
{
return std::find(container.begin(), container.end(), key)
!= container.end();
}
static index_type
get_min_index(Container& container)
{
(void)container;
return 0;
}
static index_type
get_max_index(Container& container)
{
return container.size();
}
static bool
compare_index(Container& container, index_type a, index_type b)
{
(void)container;
return a < b;
}
static void
append(Container& container, data_type const& v)
{
container.push_back(v);
}
template <class Iter>
static void
extend(Container& container, Iter first, Iter last)
{
container.insert(container.end(), first, last);
}
static index_type
convert_index(Container& container, PyObject* i_)
{
extract<long> i(i_);
if (i.check())
{
long index = i();
if (index < 0)
index += DerivedPolicies::size(container);
if (index >= long(container.size()) || index < 0)
{
PyErr_SetString(PyExc_IndexError, "Index out of range");
throw_error_already_set();
}
return index;
}
PyErr_SetString(PyExc_TypeError, "Invalid index type");
throw_error_already_set();
return index_type();
}
private:
#if 0
static void
base_append(Container& container, object v)
{
extract<data_type&> elem(v);
// try if elem is an exact Data
if (elem.check())
{
DerivedPolicies::append(container, elem());
}
else
{
// try to convert elem to data_type
extract<data_type> elem(v);
if (elem.check())
{
DerivedPolicies::append(container, elem());
}
else
{
PyErr_SetString(PyExc_TypeError,
"Attempting to append an invalid type");
throw_error_already_set();
}
}
}
static void
base_extend(Container& container, object v)
{
std::vector<data_type> temp;
container_utils::extend_container(temp, v);
DerivedPolicies::extend(container, temp.begin(), temp.end());
}
#endif
static iterator_type
moveToPos(Container &container, index_type i){
iterator_type pos;
index_type idx=0;
pos=container.begin();
while(idx<i && pos != container.end()){
pos++;
idx++;
}
if(pos==container.end()){
PyErr_SetObject(PyExc_IndexError,PyInt_FromLong(i));
python::throw_error_already_set();
}
return pos;
}
};
}} // namespace boost::python
#endif
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