[PATCH 2 of 3] revset: turn spanset into a factory function
Pierre-Yves David
pierre-yves.david at ens-lyon.org
Fri Sep 19 19:07:36 CDT 2014
# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at fb.com>
# Date 1411070642 25200
# Thu Sep 18 13:04:02 2014 -0700
# Node ID 5aec2be794fbd94adc4f624c57cdd2fc9907e6e3
# Parent 9daf8851618b46b112314848bd639dadf6ca7381
revset: turn spanset into a factory function
We rename the `spanset` class to `_spanset`. `spanset` is now a function that
build either a `fullreposet` or a `_spanset` according to the argument passed.
At some point we may force people to explicitly use the `fullreposet`
constructor but the current approach make is easier to ensure we use the new
class whenever possible and focus on the benefit of this class.
diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -2726,11 +2726,22 @@ class _descgeneratorset(_generatorset):
break
self._cache[x] = False
return False
-class spanset(_orderedsetmixin):
+def spanset(repo, start=None, end=None):
+ """factory function to dispatch between fullreposet and actual spanset
+
+ Feel will to update all spanset call site and kill this function at some
+ point.
+ """
+ if start is None and end is None:
+ return fullreposet(repo)
+ return _spanset(repo, start, end)
+
+
+class _spanset(_orderedsetmixin):
"""Duck type for baseset class which represents a range of revisions and
can work lazily and without having all the range in memory
Note that spanset(x, y) behave almost like xrange(x, y) except for two
notable points:
@@ -2845,11 +2856,11 @@ class spanset(_orderedsetmixin):
return self._start >= self._end
def filter(self, l):
return orderedlazyset(self, l, ascending=self.isascending())
-class fullreposet(spanset):
+class fullreposet(_spanset):
"""a set containing all revisions in the repo
This class exists to host special optimisation.
"""
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