Function routing::legacy_router::route_from_self

pub async fn route_from_self<C, V>(
    use_decl: UseDecl,
    target: Arc<C>,
    sources: Sources,
    visitor: &mut V,
    mapper: &mut dyn DebugRouteMapper
) -> Result<CapabilitySource<C>, RoutingError>
where
    C: ComponentInstanceInterface + 'static,
    V: CapabilityVisitor + Clone + Send + Sync + 'static,

Routes a capability from its Use declaration to its source by capabilities declarations, i.e. whatever capabilities that this component itself provides.

sources defines what are the valid sources of the capability. See AllowedSourcesBuilder. visitor is invoked for each Capability declaration if sources permits.