/* Set new unique item at `i` index in LDAPValueList to `newitem`. Case-insensitive,
the `newitem` is also appended to the added list, or remove from the deleted list.
Same goes for the replaced item.
*/
int
LDAPValueList_SetItem(LDAPValueList *self, Py_ssize_t i, PyObject *newitem) {
int rc = -1;
PyObject *olditem;
if (UniqueList_SetItem((UniqueList *)self, i, newitem) != 0) return -1;
olditem = PyList_GetItem((PyObject *)self, i);
if (olditem == NULL) return -1;
rc = UniqueList_Remove_wFlg(self->added, olditem);
if (rc == -1) return -1;
if (rc == 0) {
if (UniqueList_Append(self->deleted, olditem) == -1) {
PyErr_BadInternalCall();
return -1;
}
}
rc = UniqueList_Remove_wFlg(self->deleted, newitem);
if (rc == -1) return -1;
if (rc == 0) {
if (UniqueList_Append(self->added, newitem) == -1) {
PyErr_BadInternalCall();
return -1;
}
}
return 0;
}
static int
UL_ass_item(UniqueList *self, Py_ssize_t i, PyObject *v) {
if (i < 0 || i >= Py_SIZE(self)) {
PyErr_SetString(PyExc_IndexError,
"list assignment index out of range");
return -1;
}
if (v == NULL) return UniqueList_SetSlice(self, i, i+1, v);
return UniqueList_SetItem(self, i, v);
}
/* This function is based on list_ass_subscript from Python source listobject.c.
But it uses UniqueList's setslice and setitem functions instead of memory opertation.
It is probably a much more slower, but cleaner (easier) solution.
*/
static int
UL_ass_subscript(UniqueList *self, PyObject *item, PyObject *value) {
size_t cur;
Py_ssize_t i;
Py_ssize_t start, stop, step, slicelength;
PyObject *seq;
PyObject **seqitems;
if (PyIndex_Check(item)) {
i = PyNumber_AsSsize_t(item, PyExc_IndexError);
if (i == -1 && PyErr_Occurred()) return -1;
if (i < 0) i += PyList_GET_SIZE(self);
return UL_ass_item(self, i, value);
} else if (PySlice_Check(item)) {
if (PySlice_GetIndicesEx(item, Py_SIZE(self), &start, &stop, &step, &slicelength) < 0) {
return -1;
}
if (step == 1) return UniqueList_SetSlice(self, start, stop, value);
/* Make sure s[5:2] = [..] inserts at the right place:
before 5, not before 2. */
if ((step < 0 && start < stop) || (step > 0 && start > stop)) {
stop = start;
}
if (value == NULL) {
/* delete slice */
if (slicelength <= 0) return 0;
if (step < 0) {
stop = start + 1;
start = stop + step*(slicelength - 1) - 1;
step = -step;
}
for (cur = start, i = 0; cur < (size_t)stop; cur += step, i++) {
if (UniqueList_SetSlice(self, cur-i, cur+1-i, (PyObject *)NULL) != 0) {
return -1;
}
}
return 0;
} else {
/* assign slice */
/* protect against a[::-1] = a */
if (self == (UniqueList *)value) {
seq = PyList_GetSlice(value, 0, PyList_GET_SIZE(value));
} else {
seq = PySequence_Fast(value, "must assign iterable to extended slice");
}
if (!seq) return -1;
if (PySequence_Fast_GET_SIZE(seq) != slicelength) {
PyErr_Format(PyExc_ValueError, "attempt to assign sequence of size %zd to extended slice of "
"size %zd", PySequence_Fast_GET_SIZE(seq), slicelength);
Py_DECREF(seq);
return -1;
}
if (!slicelength) {
Py_DECREF(seq);
return 0;
}
seqitems = PySequence_Fast_ITEMS(seq);
for (cur = start, i = 0; i < slicelength; cur += (size_t)step, i++) {
if (UniqueList_SetItem(self, cur, seqitems[i]) != 0) {
return -1;
}
}
Py_DECREF(seq);
return 0;
}
} else {
PyErr_Format(PyExc_TypeError, "list indices must be integers, not %.200s", item->ob_type->tp_name);
return -1;
}
}