Avoid a potential NRE if the nested type mapping is wrong (obfuscator)

Fijo · Jul 2, 2012 · aea2ceb · aea2ceb
1 parent a8f871a
commit aea2ceb
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/Mono.Cecil/AssemblyReader.cs b/Mono.Cecil/AssemblyReader.cs
@@ -778,8 +778,12 @@ public Collection<TypeDefinition> ReadNestedTypes (TypeDefinition type)
 
 			var nested_types = new MemberDefinitionCollection<TypeDefinition> (type, mapping.Length);
 
-			for (int i = 0; i < mapping.Length; i++)
-				nested_types.Add (GetTypeDefinition (mapping [i]));
+			for (int i = 0; i < mapping.Length; i++) {
+				var nested_type = GetTypeDefinition (mapping [i]);
+
+				if (nested_type != null)
+					nested_types.Add (nested_type);
+			}
 
 			metadata.RemoveNestedTypeMapping (type);