From dff77bcb065593c3d312a7842b98cdea898457f1 Mon Sep 17 00:00:00 2001
From: Max Katz <maxkatz6@outlook.com>
Date: Sat, 10 Jul 2021 15:43:43 -0400
Subject: [PATCH] Merge pull request #6228 from
 MihaMarkic/makes_readonly_struct

Makes TextBox.UndoRedoState struct readonly
---
 src/Avalonia.Controls/TextBox.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Controls/TextBox.cs b/src/Avalonia.Controls/TextBox.cs
index 3aef2abac5..91411cbd3b 100644
--- a/src/Avalonia.Controls/TextBox.cs
+++ b/src/Avalonia.Controls/TextBox.cs
@@ -145,7 +145,7 @@ namespace Avalonia.Controls
                 (o, v) => o.UndoLimit = v,
                 unsetValue: -1);
 
-        struct UndoRedoState : IEquatable<UndoRedoState>
+        readonly struct UndoRedoState : IEquatable<UndoRedoState>
         {
             public string Text { get; }
             public int CaretPosition { get; }