mercurial/revset.py
changeset 22809 88dad916c008
parent 22808 228b0aafb1ce
child 22810 7f97cb12782f
equal deleted inserted replaced
22808:228b0aafb1ce 22809:88dad916c008
  2860         return self._start <= self._end
  2860         return self._start <= self._end
  2861 
  2861 
  2862     def isdescending(self):
  2862     def isdescending(self):
  2863         return self._start >= self._end
  2863         return self._start >= self._end
  2864 
  2864 
       
  2865     def first(self):
       
  2866         if self._ascending:
       
  2867             it = self.fastasc
       
  2868         else:
       
  2869             it = self.fastdesc
       
  2870         for x in it():
       
  2871             return x
       
  2872         return None
       
  2873 
       
  2874     def last(self):
       
  2875         if self._ascending:
       
  2876             it = self.fastdesc
       
  2877         else:
       
  2878             it = self.fastasc
       
  2879         for x in it():
       
  2880             return x
       
  2881         return None
       
  2882 
  2865 class fullreposet(_spanset):
  2883 class fullreposet(_spanset):
  2866     """a set containing all revisions in the repo
  2884     """a set containing all revisions in the repo
  2867 
  2885 
  2868     This class exists to host special optimisation.
  2886     This class exists to host special optimisation.
  2869     """
  2887     """