From 3a3518a5b568cd2919ed95b3d749ba823ad52140 Mon Sep 17 00:00:00 2001
From: Jakub Pastuszek <jakub.pastuszek@invia.cz>
Date: Tue, 20 Feb 2024 16:31:44 +0100
Subject: [PATCH] Use instanceof instead of is_a()

---
 src/Handler/EnumHandler.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Handler/EnumHandler.php b/src/Handler/EnumHandler.php
index 916f3b8d7..44e223bed 100644
--- a/src/Handler/EnumHandler.php
+++ b/src/Handler/EnumHandler.php
@@ -44,7 +44,7 @@ public function serializeEnum(
         array $type,
         SerializationContext $context
     ) {
-        if ((isset($type['params'][1]) && 'value' === $type['params'][1]) || (!isset($type['params'][1]) && is_a($enum, \BackedEnum::class, true))) {
+        if ((isset($type['params'][1]) && 'value' === $type['params'][1]) || (!isset($type['params'][1]) && $enum instanceof \BackedEnum)) {
             if (!$enum instanceof \BackedEnum) {
                 throw new InvalidMetadataException(sprintf('The type "%s" is not a backed enum, thus you can not use "value" as serialization mode for its value.', get_class($enum)));
             }