revlog: use rust rank computation if available
Differential Revision: https://phab.mercurial-scm.org/D12212
--- a/mercurial/revlog.py Mon Feb 21 16:18:06 2022 +0100
+++ b/mercurial/revlog.py Mon Feb 21 16:18:39 2022 +0100
@@ -2471,9 +2471,12 @@
elif p1r == nullrev and p2r != nullrev:
rank = 1 + self.fast_rank(p2r)
else: # merge node
- pmin, pmax = sorted((p1r, p2r))
- rank = 1 + self.fast_rank(pmax)
- rank += sum(1 for _ in self.findmissingrevs([pmax], [pmin]))
+ if rustdagop is not None and self.index.rust_ext_compat:
+ rank = rustdagop.rank(self.index, p1r, p2r)
+ else:
+ pmin, pmax = sorted((p1r, p2r))
+ rank = 1 + self.fast_rank(pmax)
+ rank += sum(1 for _ in self.findmissingrevs([pmax], [pmin]))
e = revlogutils.entry(
flags=flags,