Mercurial > hg
comparison mercurial/revset.py @ 22809:88dad916c008
spanset: implement `first` and `last` methods
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Mon, 06 Oct 2014 11:54:53 -0700 |
parents | 228b0aafb1ce |
children | 7f97cb12782f |
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22808:228b0aafb1ce | 22809:88dad916c008 |
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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 """ |