fix(serializer): deprecate SerializerAwareProviderInterface and SerializableProvider

A PR for the removal was already made: #7314.

Author: vinceAmstoutz

src/State/SerializerAwareProviderInterface.php

@@ -19,6 +19,8 @@
  * Injects serializer in providers.
  *
  * @author Vincent Chalamon <[email protected]>
+ *
+ * @deprecated in 4.2, to be removed in 5.0 because it violates the dependency injection principle.
  */
 interface SerializerAwareProviderInterface
 {

src/State/SerializerAwareProviderTrait.php

@@ -30,6 +30,13 @@ trait SerializerAwareProviderTrait
 
     public function setSerializerLocator(ContainerInterface $serializerLocator): void
     {
+        trigger_deprecation(
+            'api-platform/core',
+            '4.2',
+            'The "%s" interface is deprecated and will be removed in 5.0. It violates the dependency injection principle.',
+            SerializerAwareProviderInterface::class
+        );
+
         $this->serializerLocator = $serializerLocator;
     }
 

tests/Fixtures/TestBundle/State/SerializableProvider.php

@@ -20,6 +20,8 @@
 
 /**
  * @author Vincent Chalamon <[email protected]>
+ *
+ * @deprecated in 4.2, to be removed in 5.0 because it violates the dependency injection principle.
  */
 class SerializableProvider implements ProviderInterface, SerializerAwareProviderInterface
 {