[Serializer] Deprecate annotations in favor of attributes

UPGRADE-6.4.md

@@ -71,3 +71,9 @@ Security
  * `UserValueResolver` no longer implements `ArgumentValueResolverInterface`
  * Make `PersistentToken` immutable
  * Deprecate accepting only `DateTime` for `TokenProviderInterface::updateToken()`, use `DateTimeInterface` instead
+
+Serializer
+----------
+
+ * Deprecate Doctrine annotations support in favor of native attributes
+ * Deprecate passing an annotation reader to the constructor of `AnnotationLoader`

src/Symfony/Bridge/Twig/Tests/Extension/Fixtures/SerializerModelFixture.php

@@ -9,9 +9,7 @@
  */
 class SerializerModelFixture
 {
-    /**
-     * @Groups({"read"})
-     */
+    #[Groups(['read'])]
     public $name = 'howdy';
 
     public $title = 'fixture';

src/Symfony/Bridge/Twig/Tests/Extension/SerializerExtensionTest.php

@@ -11,7 +11,6 @@
 
 namespace Symfony\Bridge\Twig\Tests\Extension;
 
-use Doctrine\Common\Annotations\AnnotationReader;
 use PHPUnit\Framework\TestCase;
 use Symfony\Bridge\Twig\Extension\SerializerExtension;
 use Symfony\Bridge\Twig\Extension\SerializerRuntime;
@@ -50,7 +49,7 @@ public static function serializerDataProvider(): \Generator
 
     private function getTwig(string $template): Environment
     {
-        $meta = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()));
+        $meta = new ClassMetadataFactory(new AnnotationLoader());
         $runtime = new SerializerRuntime(new Serializer([new ObjectNormalizer($meta)], [new JsonEncoder(), new YamlEncoder()]));
 
         $mockRuntimeLoader = $this->createMock(RuntimeLoaderInterface::class);

src/Symfony/Bridge/Twig/composer.json

@@ -21,7 +21,6 @@
         "twig/twig": "^2.13|^3.0.4"
     },
     "require-dev": {
-        "doctrine/annotations": "^1.12|^2",
         "egulias/email-validator": "^2.1.10|^3|^4",
         "league/html-to-markdown": "^5.0",
         "phpdocumentor/reflection-docblock": "^3.0|^4.0|^5.0",
@@ -62,6 +61,7 @@
         "symfony/http-foundation": "<5.4",
         "symfony/http-kernel": "<6.2",
         "symfony/mime": "<6.2",
+        "symfony/serializer": "<6.2",
         "symfony/translation": "<5.4",
         "symfony/workflow": "<5.4"
     },

src/Symfony/Component/PropertyInfo/Tests/Extractor/SerializerExtractorTest.php

@@ -11,10 +11,10 @@
 
 namespace Symfony\Component\PropertyInfo\Tests\Extractor;
 
-use Doctrine\Common\Annotations\AnnotationReader;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\PropertyInfo\Extractor\SerializerExtractor;
 use Symfony\Component\PropertyInfo\Tests\Fixtures\AdderRemoverDummy;
+use Symfony\Component\PropertyInfo\Tests\Fixtures\Dummy;
 use Symfony\Component\PropertyInfo\Tests\Fixtures\IgnorePropertyDummy;
 use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory;
 use Symfony\Component\Serializer\Mapping\Loader\AnnotationLoader;
@@ -24,22 +24,19 @@
  */
 class SerializerExtractorTest extends TestCase
 {
-    /**
-     * @var SerializerExtractor
-     */
-    private $extractor;
+    private SerializerExtractor $extractor;
 
     protected function setUp(): void
     {
-        $classMetadataFactory = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()));
+        $classMetadataFactory = new ClassMetadataFactory(new AnnotationLoader());
         $this->extractor = new SerializerExtractor($classMetadataFactory);
     }
 
     public function testGetProperties()
     {
         $this->assertEquals(
             ['collection'],
-            $this->extractor->getProperties('Symfony\Component\PropertyInfo\Tests\Fixtures\Dummy', ['serializer_groups' => ['a']])
+            $this->extractor->getProperties(Dummy::class, ['serializer_groups' => ['a']])
         );
     }
 

src/Symfony/Component/PropertyInfo/Tests/Fixtures/Dummy.php

@@ -42,8 +42,8 @@ class Dummy extends ParentDummy
 
     /**
      * @var \DateTimeImmutable[]
-     * @Groups({"a", "b"})
      */
+    #[Groups(['a', 'b'])]
     public $collection;
 
     /**

src/Symfony/Component/PropertyInfo/Tests/Fixtures/IgnorePropertyDummy.php

@@ -19,14 +19,9 @@
  */
 class IgnorePropertyDummy
 {
-    /**
-     * @Groups({"a"})
-     */
+    #[Groups(['a'])]
     public $visibleProperty;
 
-    /**
-     * @Groups({"a"})
-     * @Ignore
-     */
+    #[Groups(['a']), Ignore]
     private $ignoredProperty;
 }

src/Symfony/Component/PropertyInfo/composer.json

@@ -31,13 +31,13 @@
         "symfony/cache": "^5.4|^6.0|^7.0",
         "symfony/dependency-injection": "^5.4|^6.0|^7.0",
         "phpdocumentor/reflection-docblock": "^5.2",
-        "phpstan/phpdoc-parser": "^1.0",
-        "doctrine/annotations": "^1.10.4|^2"
+        "phpstan/phpdoc-parser": "^1.0"
     },
     "conflict": {
         "phpdocumentor/reflection-docblock": "<5.2",
         "phpdocumentor/type-resolver": "<1.5.1",
-        "symfony/dependency-injection": "<5.4"
+        "symfony/dependency-injection": "<5.4",
+        "symfony/serializer": "<5.4"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\PropertyInfo\\": "" },

src/Symfony/Component/Serializer/CHANGELOG.md

@@ -1,6 +1,12 @@
 CHANGELOG
 =========
 
+6.4
+---
+
+ * Deprecate Doctrine annotations support in favor of native attributes
+ * Deprecate passing an annotation reader to the constructor of `AnnotationLoader`
+
 6.3
 ---
 

src/Symfony/Component/Serializer/Mapping/Loader/AnnotationLoader.php

@@ -46,6 +46,9 @@ class AnnotationLoader implements LoaderInterface
     public function __construct(
         private readonly ?Reader $reader = null,
     ) {
+        if ($reader) {
+            trigger_deprecation('symfony/validator', '6.4', 'Passing a "%s" instance as argument 1 to "%s()" is deprecated, pass null or omit the parameter instead.', get_debug_type($reader), __METHOD__);
+        }
     }
 
     public function loadClassMetadata(ClassMetadataInterface $classMetadata): bool
@@ -163,10 +166,7 @@ public function loadClassMetadata(ClassMetadataInterface $classMetadata): bool
         return $loaded;
     }
 
-    /**
-     * @param \ReflectionClass|\ReflectionMethod|\ReflectionProperty $reflector
-     */
-    public function loadAnnotations(object $reflector): iterable
+    public function loadAnnotations(\ReflectionMethod|\ReflectionClass|\ReflectionProperty $reflector): iterable
     {
         foreach ($reflector->getAttributes() as $attribute) {
             if ($this->isKnownAttribute($attribute->getName())) {
@@ -193,13 +193,13 @@ public function loadAnnotations(object $reflector): iterable
         }
 
         if ($reflector instanceof \ReflectionClass) {
-            yield from $this->reader->getClassAnnotations($reflector);
+            yield from $this->getClassAnnotations($reflector);
         }
         if ($reflector instanceof \ReflectionMethod) {
-            yield from $this->reader->getMethodAnnotations($reflector);
+            yield from $this->getMethodAnnotations($reflector);
         }
         if ($reflector instanceof \ReflectionProperty) {
-            yield from $this->reader->getPropertyAnnotations($reflector);
+            yield from $this->getPropertyAnnotations($reflector);
         }
     }
 
@@ -229,4 +229,49 @@ private function isKnownAttribute(string $attributeName): bool
 
         return false;
     }
+
+    /**
+     * @return object[]
+     */
+    private function getClassAnnotations(\ReflectionClass $reflector): array
+    {
+        if ($annotations = array_filter(
+            $this->reader->getClassAnnotations($reflector),
+            fn (object $annotation): bool => $this->isKnownAttribute($annotation::class),
+        )) {
+            trigger_deprecation('symfony/serializer', '6.4', 'Class "%s" uses Doctrine Annotations to configure serialization, which is deprecated. Use PHP attributes instead.', $reflector->getName());
+        }
+
+        return $annotations;
+    }
+
+    /**
+     * @return object[]
+     */
+    private function getMethodAnnotations(\ReflectionMethod $reflector): array
+    {
+        if ($annotations = array_filter(
+            $this->reader->getMethodAnnotations($reflector),
+            fn (object $annotation): bool => $this->isKnownAttribute($annotation::class),
+        )) {
+            trigger_deprecation('symfony/serializer', '6.4', 'Method "%s::%s()" uses Doctrine Annotations to configure serialization, which is deprecated. Use PHP attributes instead.', $reflector->getDeclaringClass()->getName(), $reflector->getName());
+        }
+
+        return $annotations;
+    }
+
+    /**
+     * @return object[]
+     */
+    private function getPropertyAnnotations(\ReflectionProperty $reflector): array
+    {
+        if ($annotations = array_filter(
+            $this->reader->getPropertyAnnotations($reflector),
+            fn (object $annotation): bool => $this->isKnownAttribute($annotation::class),
+        )) {
+            trigger_deprecation('symfony/serializer', '6.4', 'Property "%s::$%s" uses Doctrine Annotations to configure serialization, which is deprecated. Use PHP attributes instead.', $reflector->getDeclaringClass()->getName(), $reflector->getName());
+        }
+
+        return $annotations;
+    }
 }

src/Symfony/Component/Serializer/Tests/Fixtures/Annotations/GroupDummy.php

@@ -13,7 +13,7 @@
 
 use Symfony\Component\Serializer\Annotation\Groups;
 use Symfony\Component\Serializer\Tests\Fixtures\ChildOfGroupsAnnotationDummy;
-use Symfony\Component\Serializer\Tests\Fixtures\GroupDummyInterface;
+use Symfony\Component\Serializer\Tests\Fixtures\Annotations\GroupDummyInterface;
 
 /**
  * @author Kévin Dunglas <dunglas@gmail.com>

src/Symfony/Component/Serializer/Tests/Fixtures/GroupDummyInterface.php → src/Symfony/Component/Serializer/Tests/Fixtures/Annotations/GroupDummyInterface.php

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\Component\Serializer\Tests\Fixtures;
+namespace Symfony\Component\Serializer\Tests\Fixtures\Annotations;
 
 use Symfony\Component\Serializer\Annotation\Groups;
 

src/Symfony/Component/Serializer/Tests/Fixtures/Attributes/GroupDummy.php

@@ -13,7 +13,6 @@
 
 use Symfony\Component\Serializer\Annotation\Groups;
 use Symfony\Component\Serializer\Tests\Fixtures\ChildOfGroupsAnnotationDummy;
-use Symfony\Component\Serializer\Tests\Fixtures\GroupDummyInterface;
 
 /**
  * @author Kévin Dunglas <dunglas@gmail.com>

src/Symfony/Component/Serializer/Tests/Fixtures/Annotations/GroupDummyChild.php → src/Symfony/Component/Serializer/Tests/Fixtures/Attributes/GroupDummyChild.php

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\Component\Serializer\Tests\Fixtures\Annotations;
+namespace Symfony\Component\Serializer\Tests\Fixtures\Attributes;
 
 class GroupDummyChild extends GroupDummy
 {

src/Symfony/Component/Serializer/Tests/Fixtures/Attributes/GroupDummyInterface.php

@@ -0,0 +1,23 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Serializer\Tests\Fixtures\Attributes;
+
+use Symfony\Component\Serializer\Annotation\Groups;
+
+/**
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+interface GroupDummyInterface
+{
+    #[Groups(['a', 'name_converter'])]
+    public function getSymfony();
+}

src/Symfony/Component/Serializer/Tests/Fixtures/DummyMessageInterface.php

@@ -14,13 +14,12 @@
 use Symfony\Component\Serializer\Annotation\DiscriminatorMap;
 
 /**
- * @DiscriminatorMap(typeProperty="type", mapping={
- *    "one"="Symfony\Component\Serializer\Tests\Fixtures\DummyMessageNumberOne",
- *    "two"="Symfony\Component\Serializer\Tests\Fixtures\DummyMessageNumberTwo"
- * })
- *
  * @author Samuel Roze <samuel.roze@gmail.com>
  */
+#[DiscriminatorMap(typeProperty: 'type', mapping: [
+    'one' => DummyMessageNumberOne::class,
+    'two' => DummyMessageNumberTwo::class,
+])]
 interface DummyMessageInterface
 {
 }

src/Symfony/Component/Serializer/Tests/Fixtures/DummyMessageNumberOne.php

@@ -20,8 +20,6 @@ class DummyMessageNumberOne implements DummyMessageInterface
 {
     public $one;
 
-    /**
-     * @Groups({"two"})
-     */
+    #[Groups(['two'])]
     public $two;
 }

src/Symfony/Component/Serializer/Tests/Fixtures/OtherSerializedNameDummy.php

@@ -19,9 +19,7 @@
  */
 class OtherSerializedNameDummy
 {
-    /**
-     * @Groups({"a"})
-     */
+    #[Groups(['a'])]
     private $buz;
 
     public function setBuz($buz)
@@ -34,10 +32,7 @@ public function getBuz()
         return $this->buz;
     }
 
-    /**
-     * @Groups({"b"})
-     * @SerializedName("buz")
-     */
+    #[Groups(['b']), SerializedName('buz')]
     public function getBuzForExport()
     {
         return $this->buz.' Rocks';

src/Symfony/Component/Serializer/Tests/Fixtures/invalid-ignore.yml

@@ -1,4 +1,4 @@
-'Symfony\Component\Serializer\Tests\Fixtures\Annotations\IgnoreDummy':
+'Symfony\Component\Serializer\Tests\Fixtures\Attributes\IgnoreDummy':
   attributes:
     ignored1:
       ignore: foo