From 57ed8cef30ffaebca907e7534a5ea65021802b6b Mon Sep 17 00:00:00 2001
From: Matt Nadareski <mnadareski@outlook.com>
Date: Thu, 12 Jan 2017 14:15:30 -0800
Subject: [PATCH] [Filter] Add null checks on filter; attempt to find crash

---
 SabreTools.Helper/Dats/Filter.cs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/SabreTools.Helper/Dats/Filter.cs b/SabreTools.Helper/Dats/Filter.cs
index b42ae557..847433d6 100644
--- a/SabreTools.Helper/Dats/Filter.cs
+++ b/SabreTools.Helper/Dats/Filter.cs
@@ -118,6 +118,18 @@ namespace SabreTools.Helper.Dats
 		/// <returns>True if the file passed the filter, false otherwise</returns>
 		public bool ItemPasses(DatItem item, Logger logger)
 		{
+			// If the item is null, we automatically fail it
+			if (item == null)
+			{
+				return false;
+			}
+
+			// If the item's machine is null, we automatically fail it
+			if (item.Machine == null)
+			{
+				return false;
+			}
+
 			// Filter on machine type
 			if (_machineTypes != MachineType.NULL && (item.Machine.MachineType & _machineTypes) == 0)
 			{