revset: added __sub__ mehtod to _addset
This method is intended to duck-type baseset, so we will still have _addset as a
private class but now will be able to return it without wrapping it into an
orderedlazyset or a lazyset.
--- a/mercurial/revset.py Fri Mar 14 10:22:29 2014 -0700
+++ b/mercurial/revset.py Fri Mar 14 10:22:51 2014 -0700
@@ -2419,6 +2419,12 @@
return orderedlazyset(self, filterfunc, ascending=self._ascending)
return lazyset(self, filterfunc)
+ def __sub__(self, other):
+ filterfunc = lambda r: r not in other
+ if self._ascending is not None:
+ return orderedlazyset(self, filterfunc, ascending=self._ascending)
+ return lazyset(self, filterfunc)
+
def _iterator(self):
"""Iterate over both collections without repeating elements