From c56601ce978a9246eba17e19f1e5c15f49e4f102 Mon Sep 17 00:00:00 2001
From: Rolf Bjarne Kvinge <rolf@xamarin.com>
Date: Sat, 12 Apr 2014 01:55:42 +0200
Subject: Add a null-check to fix a regression in 4de92b7.

The regression (NRE) occurs if null is passed as the argument to an
attribute constructor taking a type:

    [SomeAttribute (null)]
---
 Mono.Cecil/AssemblyReader.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Mono.Cecil/AssemblyReader.cs b/Mono.Cecil/AssemblyReader.cs
index 3e1cc30..569475b 100644
--- a/Mono.Cecil/AssemblyReader.cs
+++ b/Mono.Cecil/AssemblyReader.cs
@@ -3119,7 +3119,7 @@ namespace Mono.Cecil {
 		public TypeReference ReadTypeReference ()
 		{
 			string s = ReadUTF8String ();
-			if (s.IndexOf ('\\') != -1)
+			if (s != null && s.IndexOf ('\\') != -1)
 				s = UnescapeTypeName (s);
 			return TypeParser.ParseType (reader.module, s);
 		}
-- 
cgit v1.2.3