From fb074dc3183f5f00a48cdb1536ccef6757772837 Mon Sep 17 00:00:00 2001
From: Colin McMillen <colin@semicolin.games>
Date: Tue, 14 Jan 2020 19:45:22 -0500
Subject: [PATCH] History: make backing array readonly

GitOrigin-RevId: 33c1bfb915b4f2fb80c3bb1f4b88ef924a45363d
---
 Shared/History.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Shared/History.cs b/Shared/History.cs
index 04c6abd..56abd77 100644
--- a/Shared/History.cs
+++ b/Shared/History.cs
@@ -17,7 +17,7 @@ namespace SemiColinGames {
   class History<T> {
 
     // Backing store for the History's items.
-    private T[] items;
+    private readonly T[] items;
     // Points at the most-recently-inserted item.
     private int idx = 0;