PluginManager constructor.

This plugin manager depends on the URL generator to ensure that this service is instantiated during module installation when the plugin caches are cleared.

Parameters

\Traversable $namespaces: An object that implements \Traversable which contains the root paths keyed by the corresponding namespace to look for plugin implementations.

\Drupal\Core\Cache\CacheBackendInterface $cache_backend: A cache backend.

\Drupal\Core\Extension\ModuleHandlerInterface $module_handler: The module handler.

\Drupal\Core\Routing\UrlGeneratorInterface $url_generator: The URL generator.

Overrides DefaultPluginManager::__construct

File

core/modules/system/tests/modules/lazy_route_provider_install_test/src/PluginManager.php, line 36

Class

PluginManager

Plugin manager for testing the lazy route provider during module install.

Namespace

Drupal\lazy_route_provider_install_test

Code

public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, UrlGeneratorInterface $url_generator) {
  // Generate a URL during construction to prove that URL generation works. If
  // the route was missing an exception would be thrown. This also forces the
  // route provider to be initialized very early during a module install.
  \Drupal::state()->set(__CLASS__, Url::fromRoute('system.admin')->toString());
  parent::__construct('Plugin/LazyRouteProviderInstallTest', $namespaces, $module_handler, NULL, PluginID::class);
}

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