Merge branch '5.4' into 6.4

* 5.4:
  minor
  [CS] Fix more nullable types
  [Testing] Update nullable types

Author: OskarStark

components/expression_language.rst

@@ -385,7 +385,7 @@ or by using the second argument of the constructor::
 
         class ExpressionLanguage extends BaseExpressionLanguage
         {
-            public function __construct(CacheItemPoolInterface $cache = null, array $providers = [])
+            public function __construct(?CacheItemPoolInterface $cache = null, array $providers = [])
             {
                 // prepends the default provider to let users override it
                 array_unshift($providers, new StringExpressionLanguageProvider());

components/serializer.rst

@@ -118,7 +118,7 @@ exists in your project::
             $this->sportsperson = $sportsperson;
         }
 
-        public function setCreatedAt(\DateTimeInterface $createdAt = null): void
+        public function setCreatedAt(?\DateTimeInterface $createdAt = null): void
         {
             $this->createdAt = $createdAt;
         }
@@ -751,7 +751,7 @@ When serializing, you can set a callback to format a specific object property::
     $encoder = new JsonEncoder();
 
     // all callback parameters are optional (you can omit the ones you don't use)
-    $dateCallback = function (object $innerObject, object $outerObject, string $attributeName, string $format = null, array $context = []): string {
+    $dateCallback = function (object $innerObject, object $outerObject, string $attributeName, ?string $format = null, array $context = []): string {
         return $innerObject instanceof \DateTime ? $innerObject->format(\DateTime::ISO8601) : '';
     };
 
@@ -1629,7 +1629,7 @@ having unique identifiers::
     $classMetadataFactory = new ClassMetadataFactory(new AttributeLoader());
 
     // all callback parameters are optional (you can omit the ones you don't use)
-    $maxDepthHandler = function (object $innerObject, object $outerObject, string $attributeName, string $format = null, array $context = []): string {
+    $maxDepthHandler = function (object $innerObject, object $outerObject, string $attributeName, ?string $format = null, array $context = []): string {
         return '/foos/'.$innerObject->id;
     };
 

controller/error_pages.rst

@@ -216,7 +216,7 @@ contents, create a new Normalizer that supports the ``FlattenException`` input::
 
     class MyCustomProblemNormalizer implements NormalizerInterface
     {
-        public function normalize($exception, string $format = null, array $context = []): array
+        public function normalize($exception, ?string $format = null, array $context = []): array
         {
             return [
                 'content' => 'This is my custom problem normalizer.',
@@ -227,7 +227,7 @@ contents, create a new Normalizer that supports the ``FlattenException`` input::
             ];
         }
 
-        public function supportsNormalization($data, string $format = null, array $context = []): bool
+        public function supportsNormalization($data, ?string $format = null, array $context = []): bool
         {
             return $data instanceof FlattenException;
         }

form/dynamic_form_modification.rst

@@ -455,7 +455,7 @@ The type would now look like::
                 ])
             ;
 
-            $formModifier = function (FormInterface $form, Sport $sport = null): void {
+            $formModifier = function (FormInterface $form, ?Sport $sport = null): void {
                 $positions = null === $sport ? [] : $sport->getAvailablePositions();
 
                 $form->add('position', EntityType::class, [
@@ -487,7 +487,7 @@ The type would now look like::
                     $formModifier($event->getForm()->getParent(), $sport);
                 }
             );
-            
+
             // by default, action does not appear in the <form> tag
             // you can set this value by passing the controller route
             $builder->setAction($options['action']);

http_client.rst

@@ -1804,7 +1804,7 @@ If you want to extend the behavior of a base HTTP client, you can use
     class MyExtendedHttpClient implements HttpClientInterface
     {
         public function __construct(
-            private HttpClientInterface $decoratedClient = null
+            private ?HttpClientInterface $decoratedClient = null
         ) {
             $this->decoratedClient ??= HttpClient::create();
         }
@@ -1820,7 +1820,7 @@ If you want to extend the behavior of a base HTTP client, you can use
             return $response;
         }
 
-        public function stream($responses, float $timeout = null): ResponseStreamInterface
+        public function stream($responses, ?float $timeout = null): ResponseStreamInterface
         {
             return $this->decoratedClient->stream($responses, $timeout);
         }

messenger.rst

@@ -2621,7 +2621,7 @@ provided in order to ease the declaration of these special handlers::
     {
         use BatchHandlerTrait;
 
-        public function __invoke(MyMessage $message, Acknowledger $ack = null): mixed
+        public function __invoke(MyMessage $message, ?Acknowledger $ack = null): mixed
         {
             return $this->handle($message, $ack);
         }

messenger/custom-transport.rst

@@ -51,7 +51,7 @@ Here is a simplified example of a database transport::
          */
         public function __construct(
             private FakeDatabase $db,
-            SerializerInterface $serializer = null,
+            ?SerializerInterface $serializer = null,
         ) {
             $this->serializer = $serializer ?? new PhpSerializer();
         }

notifier.rst

@@ -824,7 +824,7 @@ and its ``asChatMessage()`` method::
         ) {
         }
 
-        public function asChatMessage(RecipientInterface $recipient, string $transport = null): ?ChatMessage
+        public function asChatMessage(RecipientInterface $recipient, ?string $transport = null): ?ChatMessage
         {
             // Add a custom subject and emoji if the message is sent to Slack
             if ('slack' === $transport) {

profiler.rst

@@ -289,7 +289,7 @@ request::
 
     class RequestCollector extends AbstractDataCollector
     {
-        public function collect(Request $request, Response $response, \Throwable $exception = null): void
+        public function collect(Request $request, Response $response, ?\Throwable $exception = null): void
         {
             $this->data = [
                 'method' => $request->getMethod(),

reference/constraints/File.rst

@@ -40,7 +40,7 @@ type. The ``Author`` class might look as follows::
     {
         protected File $bioFile;
 
-        public function setBioFile(File $file = null): void
+        public function setBioFile(?File $file = null): void
         {
             $this->bioFile = $file;
         }