From 1a591e18c64e7367b243729a43a70c2e92025468 Mon Sep 17 00:00:00 2001
From: Tomas Votruba <tomas.vot@gmail.com>
Date: Fri, 23 Feb 2024 14:07:31 +0100
Subject: [PATCH] update content only if changed

---
 .../RemoveUselessDefaultCommentFixer.php          |  3 ++-
 .../Fixture/skip_no_changes.php.inc               | 15 +++++++++++++++
 .../config/configured_rule.php                    |  1 -
 3 files changed, 17 insertions(+), 2 deletions(-)
 create mode 100644 tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/Fixture/skip_no_changes.php.inc

diff --git a/src/Fixer/Commenting/RemoveUselessDefaultCommentFixer.php b/src/Fixer/Commenting/RemoveUselessDefaultCommentFixer.php
index 9a2e64f6..94fd3e90 100644
--- a/src/Fixer/Commenting/RemoveUselessDefaultCommentFixer.php
+++ b/src/Fixer/Commenting/RemoveUselessDefaultCommentFixer.php
@@ -63,12 +63,13 @@ public function fix(SplFileInfo $fileInfo, Tokens $tokens): void
                 continue;
             }
 
+            $originalContent = $token->getContent();
             $cleanedDocContent = $this->uselessDocBlockCleaner->clearDocTokenContent($token);
 
             if ($cleanedDocContent === '') {
                 // remove token
                 $tokens->clearTokenAndMergeSurroundingWhitespace($index);
-            } else {
+            } elseif ($cleanedDocContent !== $originalContent) {
                 // update in case of other contents
                 $tokens[$index] = new Token([T_DOC_COMMENT, $cleanedDocContent]);
             }
diff --git a/tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/Fixture/skip_no_changes.php.inc b/tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/Fixture/skip_no_changes.php.inc
new file mode 100644
index 00000000..baa65467
--- /dev/null
+++ b/tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/Fixture/skip_no_changes.php.inc
@@ -0,0 +1,15 @@
+<?php
+
+namespace Symplify\CodingStandard\Tests\Fixer\Commenting\RemoveUselessDefaultCommentFixer\Fixture;
+
+final class SkipNoChanges
+{
+    public function run()
+    {
+        // some line
+        $someLine = 100;
+
+        // another line
+        $someLine = 100;
+    }
+}
diff --git a/tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/config/configured_rule.php b/tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/config/configured_rule.php
index c08063c9..10574fd3 100644
--- a/tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/config/configured_rule.php
+++ b/tests/Fixer/Commenting/RemoveUselessDefaultCommentFixer/config/configured_rule.php
@@ -2,7 +2,6 @@
 
 declare(strict_types=1);
 use PhpCsFixer\Fixer\Basic\BracesFixer;
-
 use Symplify\CodingStandard\Fixer\Commenting\RemoveUselessDefaultCommentFixer;
 use Symplify\EasyCodingStandard\Config\ECSConfig;