Issue #3055832 by BR0kEN, Wim Leers: Remove ResourceResponseValidator's unused $serializer property/service dependency

core/modules/jsonapi/jsonapi.services.yml

@@ -208,7 +208,7 @@ services:
       - { name: event_subscriber }
   jsonapi.resource_response_validator.subscriber:
     class: Drupal\jsonapi\EventSubscriber\ResourceResponseValidator
-    arguments: ['@jsonapi.serializer', '@logger.channel.jsonapi', '@module_handler', '@app.root']
+    arguments: ['@logger.channel.jsonapi', '@module_handler', '@app.root']
     calls:
       - [setValidator, []]
     tags:

core/modules/jsonapi/src/EventSubscriber/ResourceResponseValidator.php

@@ -11,7 +11,6 @@ use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
-use Symfony\Component\Serializer\SerializerInterface;
 
 /**
  * Response subscriber that validates a JSON:API response.
@@ -28,13 +27,6 @@ use Symfony\Component\Serializer\SerializerInterface;
  */
 class ResourceResponseValidator implements EventSubscriberInterface {
 
-  /**
-   * The serializer.
-   *
-   * @var \Symfony\Component\Serializer\SerializerInterface
-   */
-  protected $serializer;
-
   /**
    * The JSON:API logger channel.
    *
@@ -68,8 +60,6 @@ class ResourceResponseValidator implements EventSubscriberInterface {
   /**
    * Constructs a ResourceResponseValidator object.
    *
-   * @param \Symfony\Component\Serializer\SerializerInterface $serializer
-   *   The serializer.
    * @param \Psr\Log\LoggerInterface $logger
    *   The JSON:API logger channel.
    * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
@@ -77,8 +67,7 @@ class ResourceResponseValidator implements EventSubscriberInterface {
    * @param string $app_root
    *   The application's root file path.
    */
-  public function __construct(SerializerInterface $serializer, LoggerInterface $logger, ModuleHandlerInterface $module_handler, $app_root) {
-    $this->serializer = $serializer;
+  public function __construct(LoggerInterface $logger, ModuleHandlerInterface $module_handler, $app_root) {
     $this->logger = $logger;
     $this->moduleHandler = $module_handler;
     $this->appRoot = $app_root;

core/modules/jsonapi/tests/src/Unit/EventSubscriber/ResourceResponseValidatorTest.php

@@ -2,7 +2,6 @@
 
 namespace Drupal\Tests\jsonapi\Unit\EventSubscriber;
 
-use Drupal\jsonapi\Encoder\JsonEncoder;
 use Drupal\jsonapi\EventSubscriber\ResourceResponseValidator;
 use Drupal\jsonapi\ResourceType\ResourceType;
 use Drupal\jsonapi\Routing\Routes;
@@ -15,7 +14,6 @@ use Prophecy\Argument;
 use Psr\Log\LoggerInterface;
 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\Serializer\Serializer;
 
 /**
  * @coversDefaultClass \Drupal\jsonapi\EventSubscriber\ResourceResponseValidator
@@ -47,12 +45,7 @@ class ResourceResponseValidatorTest extends UnitTestCase {
     $module_path = dirname(dirname(dirname(dirname(__DIR__))));
     $module->getPath()->willReturn($module_path);
     $module_handler->getModule('jsonapi')->willReturn($module->reveal());
-    $encoders = [new JsonEncoder()];
-    if (class_exists(JsonSchemaEncoder::class)) {
-      $encoders[] = new JsonSchemaEncoder();
-    }
     $subscriber = new ResourceResponseValidator(
-      new Serializer([], $encoders),
       $this->prophesize(LoggerInterface::class)->reveal(),
       $module_handler->reveal(),
       ''