Function getOrCreateRouteInjectorIfNeeded

packages/router/src/utils/config.ts:31–43

(
  route: Route,
  currentInjector: EnvironmentInjector,
)

 * @param currentInjector The parent injector of the `Route`
 */
export function getOrCreateRouteInjectorIfNeeded(
  route: Route,
  currentInjector: EnvironmentInjector,
): EnvironmentInjector {
  if (route.providers && !route._injector) {
    route._injector = createEnvironmentInjector(
      route.providers,
      currentInjector,
      `Route: ${route.path}`,
    );
  }
  return route._injector ?? currentInjector;
}

export function getLoadedRoutes(route: Route): Route[] | undefined {
  return route._loadedRoutes;