From 346937a31a7b5b3e2afc0ee7cd370c35bb810bcd Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@factorcode.org>
Date: Sun, 28 Oct 2007 01:19:19 -0400
Subject: [PATCH] Fix stack effect error in com-back

---
 extra/ui/tools/walker/walker.factor | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 mode change 100644 => 100755 extra/ui/tools/walker/walker.factor

diff --git a/extra/ui/tools/walker/walker.factor b/extra/ui/tools/walker/walker.factor
old mode 100644
new mode 100755
index fabdf26818..3ff9b284e5
--- a/extra/ui/tools/walker/walker.factor
+++ b/extra/ui/tools/walker/walker.factor
@@ -39,7 +39,7 @@ TUPLE: walker model interpreter history ;
 
 : com-back ( walker -- )
     dup walker-history
-    dup empty? [ drop ] [ pop swap call-tool* ] if ;
+    dup empty? [ 2drop ] [ pop swap call-tool* ] if ;
 
 : reset-walker ( walker -- )
     <interpreter> over set-walker-interpreter