Function requestDeferredLane

docs/index.js:13752–13761

()

  return resolveUpdatePriority();
}
function requestDeferredLane() {
  0 === workInProgressDeferredLane &&
    (workInProgressDeferredLane =
      0 === (workInProgressRootRenderLanes & 536870912) || isHydrating
        ? claimNextTransitionLane()
        : 536870912);
  var suspenseHandler = suspenseHandlerStackCursor.current;
  null !== suspenseHandler && (suspenseHandler.flags |= 32);
  return workInProgressDeferredLane;
}
function scheduleUpdateOnFiber(root, fiber, lane) {
  if (
    (root === workInProgressRoot && 2 === workInProgressSuspendedReason) ||