From d8ab1b42fee7a6ab02a640bc202afd11d279ce6c Mon Sep 17 00:00:00 2001
From: Callum Moffat <smartercallum@gmail.com>
Date: Tue, 13 Aug 2024 20:19:13 -0400
Subject: [PATCH] Make Charcode abstract/final

---
 lib/src/constants.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/src/constants.dart b/lib/src/constants.dart
index 797b274..6667b1f 100644
--- a/lib/src/constants.dart
+++ b/lib/src/constants.dart
@@ -393,7 +393,7 @@ const mathmlTextIntegrationPointElements = [
   Pair(Namespaces.mathml, 'mtext')
 ];
 
-class Charcode {
+abstract final class Charcode {
   static const int kNull = 0x00;
 
   /// '\t'