AutowireBlock.php

<?php

declare (strict_types=1);
namespace Drupal\autowire_test\Plugin\Block;

use Drupal\Core\Block\BlockBase;
use Drupal\Core\Block\Attribute\Block;
use Drupal\Core\Lock\LockBackendInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Symfony\Component\DependencyInjection\Attribute\Autowire;

/**
 * Provides a block that can be autowired.
 */
class AutowireBlock extends BlockBase implements ContainerFactoryPluginInterface {
  
  /**
   * {@inheritdoc}
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, #[Autowire(service: 'lock')] protected LockBackendInterface $lock) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
  }
  
  /**
   * {@inheritdoc}
   */
  public function build() {
    return [];
  }
  
  /**
   * Gets the lock service.
   */
  public function getLock() : LockBackendInterface {
    return $this->lock;
  }

}