An extension discovery instance. Type:

public ModuleInstaller::validateUninstall(array $module_list)

public ThemeHandler::getTheme($name) Returns

A logger instance. Type: \Psr\Log\LoggerInterface File

The module handler to fire themes_installed/themes_uninstalled hooks. Type:

public ThemeHandlerInterface::getThemeDirectories()

public ModuleHandler::moduleExists($module)

public ModuleHandlerInterface::invoke($module, $hook

public ModuleHandler::getModule($name)

The app root. Type: string File core/lib/Drupal/Cor