Function getSuspenseInstanceFromFiber

docs/index.js:3834–3843

(fiber)

  return 3 === node.tag ? nearestMounted : null;
}
function getSuspenseInstanceFromFiber(fiber) {
  if (13 === fiber.tag) {
    var suspenseState = fiber.memoizedState;
    null === suspenseState &&
      ((fiber = fiber.alternate),
      null !== fiber && (suspenseState = fiber.memoizedState));
    if (null !== suspenseState) return suspenseState.dehydrated;
  }
  return null;
}
function assertIsMounted(fiber) {
  if (getNearestMountedFiber(fiber) !== fiber)
    throw Error(formatProdErrorMessage(188));