Make NullCancellationToken final

amphp · Jun 9, 2017 · c7fcbd9 · c7fcbd9
1 parent 140752b
commit c7fcbd9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/NullCancellationToken.php b/lib/NullCancellationToken.php
@@ -25,7 +25,7 @@
  *
  * instead.
  */
-class NullCancellationToken implements CancellationToken {
+final class NullCancellationToken implements CancellationToken {
     /** @inheritdoc */
     public function subscribe(callable $callback): string {
         return "null-token";