# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 2016-06-26 08:16:57
# Node ID 4f5531f8ac386d793f90ec52011b1c7821741ad0
# Parent  f21e0d91d386fd4e81568b7a3888bb47f86e199d

revset: get rid of redundant error checking from match()

Actually there was no additional error checking. It should be caught by
"not all(specs)".

diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -2529,8 +2529,6 @@ def posttreebuilthook(tree, repo):
 
 def match(ui, spec, repo=None):
     """Create a matcher for a single revision spec."""
-    if not spec:
-        raise error.ParseError(_("empty query"))
     return matchany(ui, [spec], repo=repo)
 
 def matchany(ui, specs, repo=None):