867             elif p == nullrev:

   867             elif p == nullrev:

   868                 c.append(self.node(r))

   868                 c.append(self.node(r))

   869         return c

   869         return c

   870 

   870 

   871     def descendant(self, start, end):

   871     def descendant(self, start, end):

   872         for i in self.descendants(start):

   874         for i in self.descendants(start):

   873             if i == end:

   875             if i == end:

   874                 return True

   876                 return True

   875             elif i > end:

   877             elif i > end:

   876                 break

   878                 break