Function updateSuspenseListComponent

docs/index.js:9887–9970

(current, workInProgress, renderLanes)

      (renderState.tailMode = tailMode));
}
function updateSuspenseListComponent(current, workInProgress, renderLanes) {
  var nextProps = workInProgress.pendingProps,
    revealOrder = nextProps.revealOrder,
    tailMode = nextProps.tail;
  reconcileChildren(current, workInProgress, nextProps.children, renderLanes);
  nextProps = suspenseStackCursor.current;
  if (0 !== (nextProps & 2))
    (nextProps = (nextProps & 1) | 2), (workInProgress.flags |= 128);
  else {
    if (null !== current && 0 !== (current.flags & 128))
      a: for (current = workInProgress.child; null !== current; ) {
        if (13 === current.tag)
          null !== current.memoizedState &&
            scheduleSuspenseWorkOnFiber(current, renderLanes, workInProgress);
        else if (19 === current.tag)
          scheduleSuspenseWorkOnFiber(current, renderLanes, workInProgress);
        else if (null !== current.child) {
          current.child.return = current;
          current = current.child;
          continue;
        }
        if (current === workInProgress) break a;
        for (; null === current.sibling; ) {
          if (null === current.return || current.return === workInProgress)
            break a;
          current = current.return;
        }
        current.sibling.return = current.return;
        current = current.sibling;
      }
    nextProps &= 1;
  }
  push(suspenseStackCursor, nextProps);
  switch (revealOrder) {
    case "forwards":
      renderLanes = workInProgress.child;
      for (revealOrder = null; null !== renderLanes; )
        (current = renderLanes.alternate),
          null !== current &&
            null === findFirstSuspended(current) &&
            (revealOrder = renderLanes),
          (renderLanes = renderLanes.sibling);
      renderLanes = revealOrder;
      null === renderLanes
        ? ((revealOrder = workInProgress.child), (workInProgress.child = null))
        : ((revealOrder = renderLanes.sibling), (renderLanes.sibling = null));
      initSuspenseListRenderState(
        workInProgress,
        !1,
        revealOrder,
        renderLanes,
        tailMode
      );
      break;
    case "backwards":
      renderLanes = null;
      revealOrder = workInProgress.child;
      for (workInProgress.child = null; null !== revealOrder; ) {