Issue #3382718 by heddn, Grimreaper, pdureau: PHP 8.2: Dynamic Properties are deprecated

modules/ui_patterns_library/src/Plugin/Deriver/LibraryDeriver.php

@@ -19,13 +19,6 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  */
 class LibraryDeriver extends AbstractYamlPatternsDeriver {
 
-  /**
-   * The base plugin ID.
-   *
-   * @var string
-   */
-  protected $basePluginId;
-
   /**
    * The app root.
    *

src/Plugin/Deriver/AbstractPatternsDeriver.php

@@ -34,10 +34,17 @@ abstract class AbstractPatternsDeriver extends DeriverBase implements PatternsDe
    */
   protected $messenger;
 
+  /**
+   * The base plugin ID.
+   *
+   * @var string
+   */
+  protected string $basePluginId;
+
   /**
    * AbstractPatternsDeriver constructor.
    */
-  public function __construct($base_plugin_id, TypedDataManager $typed_data_manager, MessengerInterface $messenger) {
+  public function __construct(string $base_plugin_id, TypedDataManager $typed_data_manager, MessengerInterface $messenger) {
     $this->basePluginId = $base_plugin_id;
     $this->typedDataManager = $typed_data_manager;
     $this->messenger = $messenger;