# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 1411008754 25200
# Node ID 8040a44aab1cecec36a3fb33a3a21871a98fc47f
# Parent  44f471102f3a357b2e7fda4f91c571b29bc50b42
revset: use `subset &` in `origin`

This takes advantage of the `fullreposet` smartness.

revset #0: origin(tip)
0) wall 0.005353 comb 0.000000 user 0.000000 sys 0.000000 (best of 354)
1) wall 0.003080 comb 0.000000 user 0.000000 sys 0.000000 (best of 446)

diff -r 44f471102f3a -r 8040a44aab1c mercurial/revset.py
--- a/mercurial/revset.py	Wed Sep 17 10:59:16 2014 -0700
+++ b/mercurial/revset.py	Wed Sep 17 19:52:34 2014 -0700
@@ -1167,7 +1167,7 @@
 
     o = set([_firstsrc(r) for r in args])
     o -= set([None])
-    return subset.filter(o.__contains__)
+    return subset & o
 
 def outgoing(repo, subset, x):
     """``outgoing([path])``