From 21cb8e23e19d71049509bdda497baa5c182cd930 Mon Sep 17 00:00:00 2001
From: "p.kosyh" <p.kosyh@gmail.com>
Date: Sat, 24 Jul 2010 17:34:41 +0000
Subject: [PATCH] protected call in ref

---
 stead/stead.lua | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/stead/stead.lua b/stead/stead.lua
index 9840fa3..1a6ec37 100644
--- a/stead/stead.lua
+++ b/stead/stead.lua
@@ -497,7 +497,11 @@ function ref(n) -- ref object by name
 		return n;
 	end
 	if type(n) == 'function' then
-		return ref(n());
+		local r,v = pcall(n);
+		if not r then
+			return nil
+		end
+		return ref(v);
 	end
 	return nil
 end