# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 1412976425 25200
# Node ID e02b16f496f28193253082aa4d40843a6a83afda
# Parent  4584eec9aead432d5b66c5c85ecaf16609c31a38
match: check if an object is a baseset using `isascending` instead of `set`

The `set()` method is going away.

diff -r 4584eec9aead -r e02b16f496f2 mercurial/revset.py
--- a/mercurial/revset.py	Fri Oct 10 14:22:23 2014 -0700
+++ b/mercurial/revset.py	Fri Oct 10 14:27:05 2014 -0700
@@ -2064,7 +2064,7 @@
         tree = findaliases(ui, tree)
     weight, tree = optimize(tree, True)
     def mfunc(repo, subset):
-        if util.safehasattr(subset, 'set'):
+        if util.safehasattr(subset, 'isascending'):
             result = getset(repo, subset, tree)
         else:
             result = getset(repo, baseset(subset), tree)