Function runSerially

packages/router/test/integration/guards.spec.ts:2411–2425

(
        guards: CanActivateFn[] | CanActivateChildFn[],
      )

    it('can run functional guards serially', async () => {
      function runSerially(
        guards: CanActivateFn[] | CanActivateChildFn[],
      ): CanActivateFn | CanActivateChildFn {
        return (route: ActivatedRouteSnapshot, state: RouterStateSnapshot) => {
          const injector = inject(EnvironmentInjector);
          const observables = guards.map((guard) => {
            const guardResult = injector.runInContext(() => guard(route, state));
            return wrapIntoObservable(guardResult).pipe(first());
          });
          return concat(...observables).pipe(
            takeWhile((v) => v === true),
            last(),
          );
        };
      }

      const guardDone: string[] = [];