Don't return a metadata object unless there is explicit annotation or…

… attribute configuration, add the NullDriver to the default driver chain to ensure a minimally configured metadata object is created

src/Builder/DefaultDriverFactory.php

@@ -6,10 +6,10 @@
 
 use Doctrine\Common\Annotations\Reader;
 use JMS\Serializer\Expression\CompilableExpressionEvaluatorInterface;
-use JMS\Serializer\Metadata\Driver\AnnotationDriver;
-use JMS\Serializer\Metadata\Driver\AttributeDriver;
+use JMS\Serializer\Metadata\Driver\AnnotationOrAttributeDriver;
 use JMS\Serializer\Metadata\Driver\DefaultValuePropertyDriver;
 use JMS\Serializer\Metadata\Driver\EnumPropertiesDriver;
+use JMS\Serializer\Metadata\Driver\NullDriver;
 use JMS\Serializer\Metadata\Driver\TypedPropertiesDriver;
 use JMS\Serializer\Metadata\Driver\XmlDriver;
 use JMS\Serializer\Metadata\Driver\YamlDriver;
@@ -56,11 +56,9 @@ public function enableEnumSupport(bool $enableEnumSupport = true): void
 
     public function createDriver(array $metadataDirs, Reader $annotationReader): DriverInterface
     {
-        if (PHP_VERSION_ID >= 80000) {
-            $annotationReader = new AttributeDriver\AttributeReader($annotationReader);
-        }
-
-        $driver = new AnnotationDriver($annotationReader, $this->propertyNamingStrategy, $this->typeParser);
+        $driver = new DriverChain([
+            new AnnotationOrAttributeDriver($this->propertyNamingStrategy, $this->typeParser, $this->expressionEvaluator, $annotationReader),
+        ]);
 
         if (!empty($metadataDirs)) {
             $fileLocator = new FileLocator($metadataDirs);
@@ -71,6 +69,8 @@ public function createDriver(array $metadataDirs, Reader $annotationReader): Dri
             ]);
         }
 
+        $driver->addDriver(new NullDriver($this->propertyNamingStrategy));
+
         if ($this->enableEnumSupport) {
             $driver = new EnumPropertiesDriver($driver);
         }

src/Metadata/Driver/AnnotationDriver.php

@@ -18,7 +18,7 @@ class AnnotationDriver extends AnnotationOrAttributeDriver
 
     public function __construct(Reader $reader, PropertyNamingStrategyInterface $namingStrategy, ?ParserInterface $typeParser = null, ?CompilableExpressionEvaluatorInterface $expressionEvaluator = null)
     {
-        parent::__construct($namingStrategy, $typeParser, $expressionEvaluator);
+        parent::__construct($namingStrategy, $typeParser, $expressionEvaluator, $reader);
 
         $this->reader = $reader;
     }

src/Metadata/Driver/AnnotationOrAttributeDriver.php

@@ -4,6 +4,7 @@
 
 namespace JMS\Serializer\Metadata\Driver;
 
+use Doctrine\Common\Annotations\Reader;
 use JMS\Serializer\Annotation\Accessor;
 use JMS\Serializer\Annotation\AccessorOrder;
 use JMS\Serializer\Annotation\AccessType;
@@ -47,7 +48,7 @@
 use Metadata\Driver\DriverInterface;
 use Metadata\MethodMetadata;
 
-abstract class AnnotationOrAttributeDriver implements DriverInterface
+class AnnotationOrAttributeDriver implements DriverInterface
 {
     use ExpressionMetadataTrait;
 
@@ -61,15 +62,23 @@ abstract class AnnotationOrAttributeDriver implements DriverInterface
      */
     private $namingStrategy;
 
-    public function __construct(PropertyNamingStrategyInterface $namingStrategy, ?ParserInterface $typeParser = null, ?CompilableExpressionEvaluatorInterface $expressionEvaluator = null)
+    /**
+     * @var Reader
+     */
+    private $reader;
+
+    public function __construct(PropertyNamingStrategyInterface $namingStrategy, ?ParserInterface $typeParser = null, ?CompilableExpressionEvaluatorInterface $expressionEvaluator = null, ?Reader $reader = null)
     {
         $this->typeParser = $typeParser ?: new Parser();
         $this->namingStrategy = $namingStrategy;
         $this->expressionEvaluator = $expressionEvaluator;
+        $this->reader = $reader;
     }
 
     public function loadMetadataForClass(\ReflectionClass $class): ?BaseClassMetadata
     {
+        $configured = false;
+
         $classMetadata = new ClassMetadata($name = $class->name);
         $fileResource =  $class->getFilename();
 
@@ -86,6 +95,8 @@ public function loadMetadataForClass(\ReflectionClass $class): ?BaseClassMetadat
         $readOnlyClass = false;
 
         foreach ($this->getClassAnnotations($class) as $annot) {
+            $configured = true;
+
             if ($annot instanceof ExclusionPolicy) {
                 $exclusionPolicy = $annot->policy;
             } elseif ($annot instanceof XmlRoot) {
@@ -135,6 +146,8 @@ public function loadMetadataForClass(\ReflectionClass $class): ?BaseClassMetadat
             $methodAnnotations = $this->getMethodAnnotations($method);
 
             foreach ($methodAnnotations as $annot) {
+                $configured = true;
+
                 if ($annot instanceof PreSerialize) {
                     $classMetadata->addPreSerializeMethod(new MethodMetadata($name, $method->name));
                     continue 2;
@@ -174,6 +187,8 @@ public function loadMetadataForClass(\ReflectionClass $class): ?BaseClassMetadat
                 $propertyAnnotations = $propertiesAnnotations[$propertyKey];
 
                 foreach ($propertyAnnotations as $annot) {
+                    $configured = true;
+
                     if ($annot instanceof Since) {
                         $propertyMetadata->sinceVersion = $annot->version;
                     } elseif ($annot instanceof Until) {
@@ -274,21 +289,79 @@ public function loadMetadataForClass(\ReflectionClass $class): ?BaseClassMetadat
             }
         }
 
+        if (!$configured) {
+            return null;
+        }
+
         return $classMetadata;
     }
 
     /**
      * @return list<object>
      */
-    abstract protected function getClassAnnotations(\ReflectionClass $class): array;
+    protected function getClassAnnotations(\ReflectionClass $class): array
+    {
+        $annotations = [];
+
+        if (PHP_VERSION_ID >= 80000) {
+            $annotations = array_map(
+                static function (\ReflectionAttribute $attribute): object {
+                    return $attribute->newInstance();
+                },
+                $class->getAttributes()
+            );
+        }
+
+        if (null !== $this->reader) {
+            $annotations = array_merge($annotations, $this->reader->getClassAnnotations($class));
+        }
+
+        return $annotations;
+    }
 
     /**
      * @return list<object>
      */
-    abstract protected function getMethodAnnotations(\ReflectionMethod $method): array;
+    protected function getMethodAnnotations(\ReflectionMethod $method): array
+    {
+        $annotations = [];
+
+        if (PHP_VERSION_ID >= 80000) {
+            $annotations = array_map(
+                static function (\ReflectionAttribute $attribute): object {
+                    return $attribute->newInstance();
+                },
+                $method->getAttributes()
+            );
+        }
+
+        if (null !== $this->reader) {
+            $annotations = array_merge($annotations, $this->reader->getMethodAnnotations($method));
+        }
+
+        return $annotations;
+    }
 
     /**
      * @return list<object>
      */
-    abstract protected function getPropertyAnnotations(\ReflectionProperty $property): array;
+    protected function getPropertyAnnotations(\ReflectionProperty $property): array
+    {
+        $annotations = [];
+
+        if (PHP_VERSION_ID >= 80000) {
+            $annotations = array_map(
+                static function (\ReflectionAttribute $attribute): object {
+                    return $attribute->newInstance();
+                },
+                $property->getAttributes()
+            );
+        }
+
+        if (null !== $this->reader) {
+            $annotations = array_merge($annotations, $this->reader->getPropertyAnnotations($property));
+        }
+
+        return $annotations;
+    }
 }

src/Metadata/Driver/NullDriver.php

@@ -5,11 +5,23 @@
 namespace JMS\Serializer\Metadata\Driver;
 
 use JMS\Serializer\Metadata\ClassMetadata;
+use JMS\Serializer\Metadata\PropertyMetadata;
+use JMS\Serializer\Naming\PropertyNamingStrategyInterface;
 use Metadata\ClassMetadata as BaseClassMetadata;
 use Metadata\Driver\DriverInterface;
 
 class NullDriver implements DriverInterface
 {
+    /**
+     * @var PropertyNamingStrategyInterface
+     */
+    private $namingStrategy;
+
+    public function __construct(PropertyNamingStrategyInterface $namingStrategy)
+    {
+        $this->namingStrategy = $namingStrategy;
+    }
+
     public function loadMetadataForClass(\ReflectionClass $class): ?BaseClassMetadata
     {
         $classMetadata = new ClassMetadata($name = $class->name);
@@ -18,6 +30,20 @@ public function loadMetadataForClass(\ReflectionClass $class): ?BaseClassMetadat
             $classMetadata->fileResources[] = $fileResource;
         }
 
+        foreach ($class->getProperties() as $property) {
+            if ($property->class !== $name || (isset($property->info) && $property->info['class'] !== $name)) {
+                continue;
+            }
+
+            $propertyMetadata = new PropertyMetadata($name, $property->getName());
+
+            if (!$propertyMetadata->serializedName) {
+                $propertyMetadata->serializedName = $this->namingStrategy->translateName($propertyMetadata);
+            }
+
+            $classMetadata->addPropertyMetadata($propertyMetadata);
+        }
+
         return $classMetadata;
     }
 }

tests/Fixtures/AuthorDeprecatedReadOnly.php

@@ -5,7 +5,7 @@
 namespace JMS\Serializer\Tests\Fixtures;
 
 use JMS\Serializer\Annotation\Accessor;
-use JMS\Serializer\Annotation\ReadOnly;
+use JMS\Serializer\Annotation\DeprecatedReadOnly;
 use JMS\Serializer\Annotation\SerializedName;
 use JMS\Serializer\Annotation\Type;
 use JMS\Serializer\Annotation\XmlRoot;
@@ -22,6 +22,7 @@ class AuthorDeprecatedReadOnly
      * @JMS\Serializer\Annotation\ReadOnly
      * @SerializedName("id")
      */
+    #[DeprecatedReadOnly]
     #[SerializedName(name: 'id')]
     private $id;
 

tests/Fixtures/AuthorDeprecatedReadOnlyPerClass.php

@@ -5,7 +5,7 @@
 namespace JMS\Serializer\Tests\Fixtures;
 
 use JMS\Serializer\Annotation\Accessor;
-use JMS\Serializer\Annotation\ReadOnly;
+use JMS\Serializer\Annotation\DeprecatedReadOnly;
 use JMS\Serializer\Annotation\SerializedName;
 use JMS\Serializer\Annotation\Type;
 use JMS\Serializer\Annotation\XmlRoot;
@@ -14,15 +14,17 @@
  * @deprecated ReadOnly annotation is deprecated
  *
  * @XmlRoot("author")
- * @ReadOnly
+ * @JMS\Serializer\Annotation\ReadOnly
  */
 #[XmlRoot(name: 'author')]
+#[DeprecatedReadOnly]
 class AuthorDeprecatedReadOnlyPerClass
 {
     /**
-     * @ReadOnly
+     * @JMS\Serializer\Annotation\ReadOnly
      * @SerializedName("id")
      */
+    #[DeprecatedReadOnly]
     #[SerializedName(name: 'id')]
     private $id;
 
@@ -36,11 +38,12 @@ public function __construct($id, $name)
      * @Type("string")
      * @SerializedName("full_name")
      * @Accessor("getName")
-     * @ReadOnly(false)
+     * @JMS\Serializer\Annotation\ReadOnly(false)
      */
     #[Type(name: 'string')]
     #[SerializedName(name: 'full_name')]
     #[Accessor(getter: 'getName')]
+    #[DeprecatedReadOnly(readOnly: false)]
     private $name;
 
     public function getId()

tests/Fixtures/AuthorList.php

@@ -43,26 +43,23 @@ public function count(): int
     /**
      * @see ArrayAccess
      */
-    #[\ReturnTypeWillChange]
-    public function offsetExists($offset)
+    public function offsetExists($offset): bool
     {
         return isset($this->authors[$offset]);
     }
 
     /**
      * @see ArrayAccess
      */
-    #[\ReturnTypeWillChange]
-    public function offsetGet($offset)
+    public function offsetGet($offset): ?Author
     {
         return $this->authors[$offset] ?? null;
     }
 
     /**
      * @see ArrayAccess
      */
-    #[\ReturnTypeWillChange]
-    public function offsetSet($offset, $value)
+    public function offsetSet($offset, $value): void
     {
         if (null === $offset) {
             $this->authors[] = $value;
@@ -74,8 +71,7 @@ public function offsetSet($offset, $value)
     /**
      * @see ArrayAccess
      */
-    #[\ReturnTypeWillChange]
-    public function offsetUnset($offset)
+    public function offsetUnset($offset): void
     {
         unset($this->authors[$offset]);
     }

tests/Fixtures/Doctrine/PersistendCollection/SmartPhone.php

@@ -21,6 +21,7 @@ class SmartPhone
      *
      * @var string
      */
+    #[Serializer\SerializedName(name: 'id')]
     #[Serializer\Type(name: 'string')]
     protected $id;
 
@@ -40,6 +41,7 @@ class SmartPhone
      *
      * @var ArrayCollection<int, App>
      */
+    #[Serializer\SerializedName(name: 'applications')]
     #[Serializer\Type(name: 'ArrayCollection<JMS\Serializer\Tests\Fixtures\Doctrine\PersistendCollection\App>')]
     private $apps;
 

tests/Fixtures/ObjectWithLifecycleCallbacks.php

@@ -39,6 +39,7 @@ public function __construct($firstname = 'Foo', $lastname = 'Bar')
     /**
      * @PreSerialize
      */
+    #[PreSerialize]
     private function prepareForSerialization()
     {
         $this->name = $this->firstname . ' ' . $this->lastname;
@@ -47,6 +48,7 @@ private function prepareForSerialization()
     /**
      * @PostSerialize
      */
+    #[PostSerialize]
     private function cleanUpAfterSerialization()
     {
         $this->name = null;
@@ -55,6 +57,7 @@ private function cleanUpAfterSerialization()
     /**
      * @PostDeserialize
      */
+    #[PostDeserialize]
     private function afterDeserialization()
     {
         [$this->firstname, $this->lastname] = explode(' ', $this->name);