# HG changeset patch
# User Anton Shestakov <av6@dwimlabs.net>
# Date 1554558615 -7200
# Node ID 94743877e50bff995f067da16c758b5d2c003648
# Parent  faf99d48eda991e3f693d2e9ac7cf4b452370293
stack: improve set combination logic

diff -r faf99d48eda9 -r 94743877e50b hgext3rd/topic/stack.py
--- a/hgext3rd/topic/stack.py	Sat Apr 06 15:49:22 2019 +0200
+++ b/hgext3rd/topic/stack.py	Sat Apr 06 15:50:15 2019 +0200
@@ -46,10 +46,7 @@
     if not phasesets or None in phasesets[phases.draft:]:
         return repo.revs('(not public()) - obsolete()')
 
-    result = set()
-    for s in phasecache._phasesets[phases.draft:]:
-        result |= s
-
+    result = set.union(*phasesets[phases.draft:])
     result -= obsolete.getrevs(repo, 'obsolete')
     return result