From fb5e32c14b238b0e3cbf625af9a2dd3f16211398 Mon Sep 17 00:00:00 2001
From: Matt Nadareski <mnadareski@outlook.com>
Date: Wed, 19 Feb 2025 14:42:41 -0500
Subject: [PATCH] Add validation to hash type array

---
 SabreTools.DatTools/DatFromDir.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/SabreTools.DatTools/DatFromDir.cs b/SabreTools.DatTools/DatFromDir.cs
index 4320798b..ee412fe1 100644
--- a/SabreTools.DatTools/DatFromDir.cs
+++ b/SabreTools.DatTools/DatFromDir.cs
@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Threading;
@@ -54,6 +55,9 @@ namespace SabreTools.DatTools
 
         public DatFromDir(HashType[] hashes, SkipFileType skipFileType, bool addBlanks)
         {
+            if (hashes.Length == 0)
+                throw new ArgumentException($"{nameof(hashes)} must contain at least one valid HashType");
+
             _hashes = hashes;
             _skipFileType = skipFileType;
             _addBlanks = addBlanks;