DependencyInjection (Component\HttpKernel)

Symfony\Component\HttpKernel\DependencyInjection

AddClassesToCachePass	Sets the classes to compile in the cache for the container.
ConfigurableExtension	This extension sub-class provides first-class integration with the Config/Definition Component.
ContainerAwareHttpKernel	Adds a managed request scope.
Extension	Allow adding classes to the class cache.
MergeExtensionConfigurationPass	Ensures certain extensions are always loaded.
RegisterListenersPass	Compiler pass to register tagged services for an event dispatcher.