From 54553da9dee4f7f67c82b763a001d7fbfb44c9af Mon Sep 17 00:00:00 2001
From: Jorg Sowa <jorg.sowa@gmail.com>
Date: Fri, 20 Dec 2024 00:19:33 +0100
Subject: [PATCH] Return null for no change

---
 rules/Php84/Rector/FuncCall/RoundingModeEnumRector.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/rules/Php84/Rector/FuncCall/RoundingModeEnumRector.php b/rules/Php84/Rector/FuncCall/RoundingModeEnumRector.php
index 1ed3e08e5ea..cf36db1c30d 100644
--- a/rules/Php84/Rector/FuncCall/RoundingModeEnumRector.php
+++ b/rules/Php84/Rector/FuncCall/RoundingModeEnumRector.php
@@ -65,6 +65,7 @@ public function refactor(Node $node): ?Node\Expr\FuncCall
 
         $modeArg = $args[2]->value;
 
+        $hasChanged = false;
         if ($modeArg instanceof ConstFetch) {
             if (isset($modeArg->name->getParts()[0])) {
                 $enumCase = match ($modeArg->name->getParts()[0]) {
@@ -80,10 +81,15 @@ public function refactor(Node $node): ?Node\Expr\FuncCall
                 }
 
                 $args[2]->value = new Node\Expr\ClassConstFetch(new FullyQualified('RoundingMode'), $enumCase);
+                $hasChanged = true;
             }
         }
 
-        return $node;
+        if ($hasChanged) {
+            return $node;
+        }
+
+        return null;
     }
 
     public function provideMinPhpVersion(): int