Module handler service. Type:
Requirement severity -- Error condition; abort installation. File core/modules/system/src/SystemManager
public SystemManager::listRequirements()
public SystemManager::getAdminBlock(MenuLinkInterface $instance)
A static cache of menu items. Type:
public SystemManager::checkRequirements()
public SystemManager::__construct(ModuleHandlerInterface $module_handler
Requirement severity -- Warning condition; proceed but flag warning. File core/modules/system/src/SystemManager
System Manager Service. Hierarchy class \Drupal\system\
The request stack. Type: \Symfony\Component\HttpFoundation\RequestStack File
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