This is an archive of the discontinued Mercurial Phabricator instance.

Status	Author	Revision
Closed	pacien	D12212 revlog: use rust rank computation if available
Closed	pacien	D12211 rust: expose rank computation function to python
Closed	pacien	D12210 rust: implement vcsgraph::RankedGraph for Index
Closed	pacien	D12209 revlog: implement fast_rank retrieval in C
Closed	pacien	D12208 revlog: return 0 for the fast_rank of nullrev

Diff 32274

	head. Equivalently, the rank of a revision `r` is the size of the set			head. Equivalently, the rank of a revision `r` is the size of the set
	`ancestors(r)`, `r` included.			`ancestors(r)`, `r` included.

	This method returns the rank retrieved from the revlog in constant			This method returns the rank retrieved from the revlog in constant
	time. It makes no attempt at computing unknown values for versions of			time. It makes no attempt at computing unknown values for versions of
	the revlog which do not persist the rank.			the revlog which do not persist the rank.
	"""			"""
	rank = self.index[rev][ENTRY_RANK]			rank = self.index[rev][ENTRY_RANK]
	if rank == RANK_UNKNOWN:			if self._format_version != CHANGELOGV2 or rank == RANK_UNKNOWN:
	return None			return None
				if rev == nullrev:
				return 0 # convention
	return rank			return rank

	def chainbase(self, rev):			def chainbase(self, rev):
	base = self._chainbasecache.get(rev)			base = self._chainbasecache.get(rev)
	if base is not None:			if base is not None:
	return base			return base

	index = self.index			index = self.index