comparison mercurial/cext/revlog.c @ 43582:ae5e39512ca0

revlog: delete references to deleted nullid sentinel value

We stopped keeping the nullid in the index in 781b2720d2ac (index:
don't include nullid in len(), 2018-07-20). I forgot to update some
comments about it.

Differential Revision: https://phab.mercurial-scm.org/D7366

43581:f5991fd7cca7

/*
 * This class has two behaviors.
 *
 * When used in a list-like way (with integer keys), we decode an
 * entry in a RevlogNG index file on demand. Our last entry is a
 * sentinel, always a nullid.  We have limited support for
 * integer-keyed insert and delete, only at elements right before the
 * sentinel.
 *
 * With string keys, we lazily perform a reverse mapping from node to
 * rev, using a base-16 trie.
 */
struct indexObjectStruct {

		Py_CLEAR(self->added);
}

/*
 * Delete a numeric range of revs, which must be at the end of the
 * range, but exclude the sentinel nullid entry.
 */
static int index_slice_del(indexObject *self, PyObject *item)
{
	Py_ssize_t start, stop, step, slicelength;
	Py_ssize_t length = index_length(self) + 1;

43582:ae5e39512ca0

/*
 * This class has two behaviors.
 *
 * When used in a list-like way (with integer keys), we decode an
 * entry in a RevlogNG index file on demand. We have limited support for
 * integer-keyed insert and delete, only at elements right before the
 * end.
 *
 * With string keys, we lazily perform a reverse mapping from node to
 * rev, using a base-16 trie.
 */
struct indexObjectStruct {

		Py_CLEAR(self->added);
}

/*
 * Delete a numeric range of revs, which must be at the end of the
 * range.
 */
static int index_slice_del(indexObject *self, PyObject *item)
{
	Py_ssize_t start, stop, step, slicelength;
	Py_ssize_t length = index_length(self) + 1;