Here are the data structures with brief descriptions:

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▼NARouter
▼NRouting
▼NAnnotation
CController
CCookieValue
CRequestBody
CRequestHeader
CRequestParam
CRoute
CSessionAttribute
▼NException
CApplicableConverterNotFoundException
CMissingArgumentHandlerException
CPathArgumentIsMissingException
CRouteHandlerNotFoundException
▼NFactory
CRouterFactory
▼NHttpMessageConverter
CHttpMessageConverterInterface
CHttpMessageConverterManager
▼NResolver
▼NService
CMethodArgumentsResolverService
CCookieValueArgumentResolver
CMethodArgumentResolver
CPathArgumentResolver
CRequestArgumentResolver
CRequestBodyArgumentResolver
CRequestHeaderArgumentResolver
CRequestParamArgumentResolver
CSessionAttributeArgumentResolver
▼NScanner
CAnnotationRouteMappingsScanner
CCachedRouteMappingsScanner
CRouteMappingsScannerInterface
▼NUtility
CPHPClassesDetector
CRouteHandler
CRouteMapping
CRouteMatch
CRouter
CRouterInterface
CRoutingMiddleware
CUrlBuilder