Method push

src/back/util/EventQueue.ts:31–43

* Add en event to the end of the queue. * * @param event Event function to add. * @param returnPromise If a promise should be returned. * @returns Nothing or a promise that resolves after the event is executed, * or rejects if it rejects or throws an error.

(event: EventFunction, returnPromise?: boolean)

   *          or rejects if it rejects or throws an error.
   */
  push(event: EventFunction, returnPromise?: boolean): Promise<void> | void {
    // Wrap the event, and create a promise, if a promise should be returned
    const [wrappedEvent, promise] = returnPromise ? wrapEvent(event) : [undefined, undefined];
    // Push end off early if max size is reached
    if (this.queue.length === this.maxSize) {
      this.queue.shift();
    }
    // Add event to the end of the queue
    this.queue.push(wrappedEvent || event);
    this.update();
    // Return promise (if any)
    return promise;
  }

  private update() {
    if (!this.isExecuting && this.queue.length > 0) {