Mercurial > public > mercurial-scm > hg
comparison mercurial/revset.py @ 22742:6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
If the underlying object offers fast iterators, we use them to provide fast
iterators too.
| author | Pierre-Yves David <pierre-yves.david@fb.com> |
|---|---|
| date | Thu, 02 Oct 2014 23:38:30 -0500 |
| parents | ef2c1ea8fb2c |
| children | eccf9907b844 |
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| 22741:ef2c1ea8fb2c | 22742:6bbc26adcc6a |
|---|---|
| 2657 def __iter__(self): | 2657 def __iter__(self): |
| 2658 if self._genlist: | 2658 if self._genlist: |
| 2659 return iter(self._genlist) | 2659 return iter(self._genlist) |
| 2660 return iter(self._iterator()) | 2660 return iter(self._iterator()) |
| 2661 | 2661 |
| 2662 @property | |
| 2663 def fastasc(self): | |
| 2664 iter1 = self._r1.fastasc | |
| 2665 iter2 = self._r2.fastasc | |
| 2666 if None in (iter1, iter2): | |
| 2667 return None | |
| 2668 return lambda: self._iterordered(True, iter1(), iter2()) | |
| 2669 | |
| 2670 @property | |
| 2671 def fastdesc(self): | |
| 2672 iter1 = self._r1.fastdesc | |
| 2673 iter2 = self._r2.fastdesc | |
| 2674 if None in (iter1, iter2): | |
| 2675 return None | |
| 2676 return lambda: self._iterordered(False, iter1(), iter2()) | |
| 2677 | |
| 2662 def _iterordered(self, ascending, iter1, iter2): | 2678 def _iterordered(self, ascending, iter1, iter2): |
| 2663 """produce an ordered iteration from two iterators with the same order | 2679 """produce an ordered iteration from two iterators with the same order |
| 2664 | 2680 |
| 2665 The ascending is used to indicated the iteration direction. | 2681 The ascending is used to indicated the iteration direction. |
| 2666 """ | 2682 """ |