From 528532bd14777c7b6a1dbff7c740df2c866a77a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E5=B9=B3?= <liuping@misrobot.com>
Date: Mon, 9 Jan 2017 17:44:15 +0800
Subject: [PATCH] Fixed : call debug.getmetatable maybe cause
 NullReferenceException

---
 src/MoonSharp.Interpreter/CoreLib/DebugModule.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/MoonSharp.Interpreter/CoreLib/DebugModule.cs b/src/MoonSharp.Interpreter/CoreLib/DebugModule.cs
index c61d30ba..44c9e29b 100644
--- a/src/MoonSharp.Interpreter/CoreLib/DebugModule.cs
+++ b/src/MoonSharp.Interpreter/CoreLib/DebugModule.cs
@@ -84,7 +84,7 @@ public static DynValue getmetatable(ScriptExecutionContext executionContext, Cal
 
 			if (v.Type.CanHaveTypeMetatables())
 				return DynValue.NewTable(S.GetTypeMetatable(v.Type));
-			else if (v.Type == DataType.Table)
+			else if (v.Type == DataType.Table && v.Table.MetaTable != null)
 				return DynValue.NewTable(v.Table.MetaTable);
 			else
 				return DynValue.Nil;