Method tryTriggerHasTask

packages/zone.js/lib/zone-spec/proxy.ts:88–95

(parentZoneDelegate: ZoneDelegate, currentZone: Zone, targetZone: Zone)

  }

  tryTriggerHasTask(parentZoneDelegate: ZoneDelegate, currentZone: Zone, targetZone: Zone) {
    if (this.isNeedToTriggerHasTask && this.lastTaskState) {
      // last delegateSpec has microTask or macroTask
      // should call onHasTask in current delegateSpec
      this.isNeedToTriggerHasTask = false;
      this.onHasTask(parentZoneDelegate, currentZone, targetZone, this.lastTaskState);
    }
  }

  removeFromTasks(task: Task) {
    if (!this.tasks) {