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@@ -246,6 +246,14 b' class lazyancestors(object):' | |||
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246 | 246 | else: |
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247 | 247 | self._containsseen = set() |
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248 | 248 | |
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249 | def __nonzero__(self): | |
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250 | """False if the set is empty, True otherwise.""" | |
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251 | try: | |
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252 | iter(self).next() | |
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253 | return True | |
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254 | except StopIteration: | |
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255 | return False | |
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256 | ||
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249 | 257 | def __iter__(self): |
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250 | 258 | """Generate the ancestors of _initrevs in reverse topological order. |
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251 | 259 |
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