Expanded class hierarchy of BlockManager

class \Drupal\Component\Plugin\PluginManagerBase implements CachedDiscoveryInterface, PluginManagerInterface
- class \Drupal\aggregator\Plugin\AggregatorPluginManager
- class \Drupal\block\Plugin\Type\BlockManager
- class \Drupal\ckeditor\CKEditorPluginManager
- class \Drupal\Core\Action\ActionManager
- class \Drupal\Core\Archiver\ArchiverManager
- class \Drupal\Core\Condition\ConditionManager implements ExecutableManagerInterface
- class \Drupal\Core\Entity\EntityManager
- class \Drupal\Core\TypedData\TypedDataManager
- class \Drupal\Core\Validation\ConstraintManager
- class \Drupal\editor\Plugin\EditorManager
- class \Drupal\edit\Plugin\InPlaceEditorManager
- class \Drupal\entity_reference\Plugin\Type\SelectionPluginManager
- class \Drupal\field\Plugin\Type\Formatter\FormatterPluginManager
- class \Drupal\field\Plugin\Type\Widget\WidgetPluginManager
- class \Drupal\filter\FilterPluginManager
- class \Drupal\layout\Plugin\Type\LayoutManager
- class \Drupal\plugin_test\Plugin\DefaultsTestPluginManager
- class \Drupal\plugin_test\Plugin\MockBlockManager
- class \Drupal\plugin_test\Plugin\TestPluginManager
- class \Drupal\rest\Plugin\Type\ResourcePluginManager
- class \Drupal\system\Plugin\ImageToolkitManager
- class \Drupal\system\Plugin\Type\PluginUIManager
- class \Drupal\tour\TipPluginManager
- class \Drupal\views\Plugin\ViewsHandlerManager
- class \Drupal\views\Plugin\ViewsPluginManager