From 0507ef7ac0ce0d658d5ee639f6f4d1e58922eb7c Mon Sep 17 00:00:00 2001
From: Alan Knowles <alan@akbkhome.com>
Date: Mon, 7 Jun 2010 14:21:18 +0800
Subject: [PATCH] Builder/Provider/File/Roo.js

---
 Builder/Provider/File/Roo.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Builder/Provider/File/Roo.js b/Builder/Provider/File/Roo.js
index 143e372c0..2f4f6f4a8 100755
--- a/Builder/Provider/File/Roo.js
+++ b/Builder/Provider/File/Roo.js
@@ -371,6 +371,9 @@ Roo = XObject.define(
         guessName : function(ar) // turns the object into full name.
         {
              // eg. xns: Roo, xtype: XXX -> Roo.xxx
+            if (!ar) {
+                return false;
+            }
             var ret = [];
             ret.push(typeof( ar['|xns'] ) == 'undefined' ? 'Roo' : ar['|xns'] );
             
-- 
2.39.2