894         """

   894         """

   895         if common is None:

   895         if common is None:

   896             common = [nullrev]

   896             common = [nullrev]

   897 

   897 

   898         if rustext is not None:

   898         if rustext is not None:

   899             return rustext.ancestor.MissingAncestors(self.index, common)

   901             return rustext.ancestor.MissingAncestors(self.index, common)

   900         return ancestor.incrementalmissingancestors(self.parentrevs, common)

   902         return ancestor.incrementalmissingancestors(self.parentrevs, common)

   901 

   903 

   902     def findmissingrevs(self, common=None, heads=None):

   904     def findmissingrevs(self, common=None, heads=None):

   903         """Return the revision numbers of the ancestors of heads that

   905         """Return the revision numbers of the ancestors of heads that