# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 2014-10-03 05:12:22
# Node ID eccf9907b8449a6c2bfd95539e6b583c99c50782
# Parent  6bbc26adcc6a2d494b23cd5edc402eb5375e033b

addset: add a __nonzero__ method

This is required to be a full smartset (not sure what was happening before
that...)

diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -2577,6 +2577,9 @@ class _addset(_orderedsetmixin):
     def __len__(self):
         return len(self._list)
 
+    def __nonzero__(self):
+        return bool(self._r1 or self._r2)
+
     @util.propertycache
     def _list(self):
         if not self._genlist: