function updateForwardRef(
  current: Fiber | null,
  workInProgress: Fiber,
  Component: any,
  nextProps: any,
  renderExpirationTime: ExpirationTime,
) {

  const render = Component.render;
  const ref = workInProgress.ref;

  // The rest is a fork of updateFunctionComponent
  let nextChildren;
  prepareToReadContext(workInProgress, renderExpirationTime);
  if (__DEV__) {
     // ...
  } else {
    nextChildren = renderWithHooks(
      current,
      workInProgress,
      render,
      nextProps,
      ref,
      renderExpirationTime,
    );
  }

  if (current !== null && !didReceiveUpdate) {
    bailoutHooks(current, workInProgress, renderExpirationTime);
    // 如果在当前帧没有更新，会跳过当前节点的更新
    return bailoutOnAlreadyFinishedWork(
      current,
      workInProgress,
      renderExpirationTime,
    );
  }

  // React DevTools reads this flag.
  workInProgress.effectTag |= PerformedWork;
  // 根据JSXElement生产Fiber对象
  reconcileChildren(
    current,
    workInProgress,
    nextChildren,
    renderExpirationTime,
  );
  // 将当前链表的下一个几点也就是child返回到workLoop继续调用
  return workInProgress.child;
}