diff mercurial/branchmap.py @ 42122:7c9d4cf23adf

branchcache: don't verify closed nodes in iteropen()

We expect that the nodes passed to iteropen() will be verified. We are only
testing for membership in closed nodes set, so we don't need to verify the whole
closed nodes set.

This will speed up calculating branchheads() when there are lot of closed nodes
related to other branches.

Differential Revision: https://phab.mercurial-scm.org/D6209

--- a/mercurial/branchmap.py	Mon Apr 01 13:56:47 2019 +0300
+++ b/mercurial/branchmap.py	Fri Apr 05 15:56:33 2019 +0300
@@ -319,7 +319,6 @@
         return self._branchtip(self[branch])[0]
 
     def iteropen(self, nodes):
-        self._verifyclosed()
         return (n for n in nodes if n not in self._closednodes)
 
     def branchheads(self, branch, closed=False):