--- a/mercurial/namespaces.py	Mon Dec 15 00:24:23 2014 -0800
+++ b/mercurial/namespaces.py	Sun Dec 14 18:54:50 2014 -0800
@@ -96,3 +96,8 @@
     def templatename(self, namespace):
         """method that returns the template name of a namespace"""
         return self._names[namespace]['templatename']
+
+    def names(self, repo, namespace, node):
+        """method that returns a (sorted) list of names in a namespace that
+        match a given node"""
+        return sorted(self._names[namespace]['nodemap'](repo, node))