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@@ -2862,6 +2862,24 b' class _spanset(abstractsmartset):' | |||
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2862 | 2862 | def isdescending(self): |
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2863 | 2863 | return self._start >= self._end |
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2864 | 2864 | |
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2865 | def first(self): | |
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2866 | if self._ascending: | |
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2867 | it = self.fastasc | |
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2868 | else: | |
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2869 | it = self.fastdesc | |
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2870 | for x in it(): | |
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2871 | return x | |
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2872 | return None | |
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2873 | ||
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2874 | def last(self): | |
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2875 | if self._ascending: | |
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2876 | it = self.fastdesc | |
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2877 | else: | |
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2878 | it = self.fastasc | |
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2879 | for x in it(): | |
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2880 | return x | |
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2881 | return None | |
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2882 | ||
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2865 | 2883 | class fullreposet(_spanset): |
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2866 | 2884 | """a set containing all revisions in the repo |
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2867 | 2885 |
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