# HG changeset patch
# User Lucas Moscovicz <lmoscovicz@fb.com>
# Date 1391704571 28800
# Node ID a5d7081a4c3457bd2e64ceff0d19657fffa58ee9
# Parent  ada89e5b5b0cbde0e646b0eed86813747a0d2db2
revset: added lazyset implementation to extra revset

diff -r ada89e5b5b0c -r a5d7081a4c34 mercurial/revset.py
--- a/mercurial/revset.py	Thu Feb 06 08:32:40 2014 -0800
+++ b/mercurial/revset.py	Thu Feb 06 08:36:11 2014 -0800
@@ -708,7 +708,7 @@
         extra = repo[r].extra()
         return label in extra and (value is None or matcher(extra[label]))
 
-    return baseset([r for r in subset if _matchvalue(r)])
+    return lazyset(subset, lambda r: _matchvalue(r))
 
 def filelog(repo, subset, x):
     """``filelog(pattern)``