DowngradeFinalPropertyPromotionRector

Author: Arshid

config/set/downgrade-php85.php

@@ -3,6 +3,7 @@
 declare(strict_types=1);
 
 use Rector\Config\RectorConfig;
+use Rector\DowngradePhp85\Rector\Class_\DowngradeFinalPropertyPromotionRector;
 use Rector\DowngradePhp85\Rector\FuncCall\DowngradeArrayFirstLastRector;
 use Rector\Renaming\Rector\ClassConstFetch\RenameClassConstFetchRector;
 use Rector\Renaming\Rector\MethodCall\RenameMethodRector;
@@ -14,6 +15,7 @@
     $rectorConfig->phpVersion(PhpVersion::PHP_84);
     $rectorConfig->rules([
         DowngradeArrayFirstLastRector::class,
+        DowngradeFinalPropertyPromotionRector::class,
     ]);
 
     // https://wiki.php.net/rfc/deprecations_php_8_5#deprecate_driver_specific_pdo_constants_and_methods

rules-tests/DowngradePhp85/Rector/Class_/DowngradeFinalPropertyPromotionRectorf/DowngradeFinalPropertyPromotionRectorTest.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DowngradePhp85\Rector\Class_\DowngradeFinalPropertyPromotionRector;
+
+use Iterator;
+use PHPUnit\Framework\Attributes\DataProvider;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class DowngradeFinalPropertyPromotionRectorTest extends AbstractRectorTestCase
+{
+    #[DataProvider('provideData')]
+    public function test(string $filePath): void
+    {
+        $this->doTestFile($filePath);
+    }
+
+    public static function provideData(): Iterator
+    {
+        return self::yieldFilesFromDirectory(__DIR__ . '/Fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/configured_rule.php';
+    }
+}

rules-tests/DowngradePhp85/Rector/Class_/DowngradeFinalPropertyPromotionRectorf/Fixture/fixture.php.inc

@@ -0,0 +1,26 @@
+<?php
+
+namespace Rector\Tests\DowngradeFinalPropertyPromotionRector\Rector\Class_\DowngradePropertyPromotionRector\Fixture;
+
+class Fixture
+{
+    public function __construct(
+        final public string $id
+    ) {}
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DowngradeFinalPropertyPromotionRector\Rector\Class_\DowngradePropertyPromotionRector\Fixture;
+
+class Fixture
+{
+    public function __construct(
+        /** @final */
+        public string $id
+    ) {}
+}
+
+?>

rules-tests/DowngradePhp85/Rector/Class_/DowngradeFinalPropertyPromotionRectorf/Fixture/skip_fixture_readonly.php.inc

@@ -0,0 +1,12 @@
+<?php
+
+namespace Rector\Tests\DowngradeFinalPropertyPromotionRector\Rector\Class_\DowngradePropertyPromotionRector\Fixture;
+
+class Fixture
+{
+    public function __construct(readonly string $id)
+    {
+    }
+}
+
+?>

rules-tests/DowngradePhp85/Rector/Class_/DowngradeFinalPropertyPromotionRectorf/config/configured_rule.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\DowngradePhp85\Rector\Class_\DowngradeFinalPropertyPromotionRector;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->rule(DowngradeFinalPropertyPromotionRector::class);
+};

rules/DowngradePhp85/Rector/Class_/DowngradeFinalPropertyPromotionRector.php

@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\DowngradePhp85\Rector\Class_;
+
+use PhpParser\Comment\Doc;
+use PhpParser\Modifiers;
+use PhpParser\Node;
+use PhpParser\Node\Param;
+use PhpParser\Node\Stmt\Class_;
+use PhpParser\Node\Stmt\ClassMethod;
+use PhpParser\Node\Stmt\Trait_;
+use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
+use Rector\BetterPhpDocParser\PhpDocManipulator\PhpDocTypeChanger;
+use Rector\PhpParser\Node\BetterNodeFinder;
+use Rector\PhpParser\Printer\BetterStandardPrinter;
+use Rector\Rector\AbstractRector;
+use Rector\ValueObject\MethodName;
+use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+/**
+ * @changelog https://wiki.php.net/rfc/final_promotion
+ *
+ * @see \Rector\Tests\DowngradePhp85\Rector\Class_\DowngradeFinalPropertyPromotionRector\DowngradeFinalPropertyPromotionRectorTest
+ */
+final class DowngradeFinalPropertyPromotionRector extends AbstractRector
+{
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition('Change constructor final property promotion to @final annotation assign', [
+            new CodeSample(
+                <<<'CODE_SAMPLE'
+class SomeClass
+{
+    public function __construct(
+        final public string $id
+    ){}
+}
+CODE_SAMPLE
+
+                ,
+                <<<'CODE_SAMPLE'
+class SomeClass
+{
+    public function __construct(
+        /** @final */
+        public string $id
+    ) {}
+}
+CODE_SAMPLE
+            ),
+        ]);
+    }
+
+    /**
+     * @return array<class-string<Node>>
+     */
+    public function getNodeTypes(): array
+    {
+        return [Class_::class, Trait_::class];
+    }
+
+    /**
+     * @param Class_|Trait_ $node
+     */
+    public function refactor(Node $node): null
+    {
+        $constructorClassMethod = $node->getMethod(MethodName::CONSTRUCT);
+        if (! $constructorClassMethod instanceof ClassMethod) {
+            return null;
+        }
+
+        foreach ($constructorClassMethod->params as $promotedParam) {
+            if (($promotedParam->flags & Modifiers::FINAL) !== 0) {
+                $promotedParam->flags &= ~Modifiers::FINAL;
+
+                $existingDoc = $promotedParam->getDocComment();
+                if (! $existingDoc) {
+                    $promotedParam->setDocComment(new Doc('/** @final */'));
+                }
+            }
+        }
+
+        return null;
+    }
+}