# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 2014-09-17 17:59:40
# Node ID 5c53d7888aef31f7a5159b4fbcc1bbcbcf1ecbdd
# Parent  b6dc3b79bb2557f3588e7f74b2ba45cf4ea11d4d

revset: use `subset &` in `outgoing`

This should give us the same benefit as elsewhere. Result is simpler (and
"faster").

Outgoing is dominated by the discovery so no benchmark is provided.

diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -1190,7 +1190,7 @@ def outgoing(repo, subset, x):
     repo.ui.popbuffer()
     cl = repo.changelog
     o = set([cl.rev(r) for r in outgoing.missing])
-    return subset.filter(o.__contains__)
+    return subset & o
 
 def p1(repo, subset, x):
     """``p1([set])``