PluginManagerPass.php

<?php

namespace Drupal\Core\Plugin;

use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Reference;

/**
 * Registers plugin managers to the plugin.cache_clearer service.
 */
class PluginManagerPass implements CompilerPassInterface {
    
    /**
     * {@inheritdoc}
     */
    public function process(ContainerBuilder $container) {
        $cache_clearer_definition = $container->getDefinition('plugin.cache_clearer');
        foreach ($container->getDefinitions() as $service_id => $definition) {
            if (str_starts_with($service_id, 'plugin.manager.') || $definition->hasTag('plugin_manager_cache_clear')) {
                if (is_subclass_of($definition->getClass(), '\\Drupal\\Component\\Plugin\\Discovery\\CachedDiscoveryInterface')) {
                    $cache_clearer_definition->addMethodCall('addCachedDiscovery', [
                        new Reference($service_id),
                    ]);
                }
            }
        }
    }

}