From 933c87eb215123d49744db1b23fd5a3a5230f553 Mon Sep 17 00:00:00 2001
From: Glenn Maynard <gmaynard@users.sourceforge.net>
Date: Fri, 13 Oct 2006 03:36:00 +0000
Subject: [PATCH] error handling

---
 stepmania/src/ActorUtil.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/stepmania/src/ActorUtil.cpp b/stepmania/src/ActorUtil.cpp
index 08e48518a3..814f475e1d 100644
--- a/stepmania/src/ActorUtil.cpp
+++ b/stepmania/src/ActorUtil.cpp
@@ -343,6 +343,15 @@ namespace
 			return NULL;
 		}
 
+		if( lua_type(L, -1) != LUA_TTABLE )
+		{
+			lua_pop( L, 1 );
+			LUA->Release( L );
+			sError = ssprintf( "%s: must return a table", sFile.c_str() );
+			Dialog::OK( sError, "LUA_ERROR" );
+			return NULL;
+		}
+
 		XNode *pRet = XmlFileUtil::XNodeFromTable( L );
 
 		LUA->Release( L );