Function finishUpAndReturn

src/navigation/reroute.js:313–349

()

  }

  function finishUpAndReturn() {
    const returnValue = getMountedApps();
    pendingPromises.forEach((promise) => promise.resolve(returnValue));

    try {
      const appChangeEventName =
        appsThatChanged.length === 0 ? "no-app-change" : "app-change";
      fireSingleSpaEvent(appChangeEventName, getCustomEventDetail());
      fireSingleSpaEvent("routing-event", getCustomEventDetail());
    } catch (err) {
      /* We use a setTimeout because if someone else's event handler throws an error, single-spa
       * needs to carry on. If a listener to the event throws an error, it's their own fault, not
       * single-spa's.
       */
      setTimeout(() => {
        throw err;
      });
    }

    /* Setting this allows for subsequent calls to reroute() to actually perform
     * a reroute instead of just getting queued behind the current reroute call.
     * We want to do this after the mounting/unmounting is done but before we
     * resolve the promise for the `reroute` function.
     */
    appChangeUnderway = false;

    if (peopleWaitingOnAppChange.length > 0) {
      /* While we were rerouting, someone else triggered another reroute that got queued.
       * So we need reroute again.
       */
      const nextPendingPromises = peopleWaitingOnAppChange;
      peopleWaitingOnAppChange = [];
      reroute(nextPendingPromises);
    }

    return returnValue;
  }

  /* We need to call all event listeners that have been delayed because they were
   * waiting on single-spa. This includes haschange and popstate events for both