Function updateSyncExternalStore

docs/index.js:7523–7565

(subscribe, getSnapshot, getServerSnapshot)

  return [newState, dispatch];
}
function updateSyncExternalStore(subscribe, getSnapshot, getServerSnapshot) {
  var fiber = currentlyRenderingFiber$1,
    hook = updateWorkInProgressHook(),
    isHydrating$jscomp$0 = isHydrating;
  if (isHydrating$jscomp$0) {
    if (void 0 === getServerSnapshot) throw Error(formatProdErrorMessage(407));
    getServerSnapshot = getServerSnapshot();
  } else getServerSnapshot = getSnapshot();
  var snapshotChanged = !objectIs(
    (currentHook || hook).memoizedState,
    getServerSnapshot
  );
  snapshotChanged &&
    ((hook.memoizedState = getServerSnapshot), (didReceiveUpdate = !0));
  hook = hook.queue;
  updateEffect(subscribeToStore.bind(null, fiber, hook, subscribe), [
    subscribe
  ]);
  if (
    hook.getSnapshot !== getSnapshot ||
    snapshotChanged ||
    (null !== workInProgressHook && workInProgressHook.memoizedState.tag & 1)
  ) {
    fiber.flags |= 2048;
    pushEffect(
      9,
      updateStoreInstance.bind(
        null,
        fiber,
        hook,
        getServerSnapshot,
        getSnapshot
      ),
      { destroy: void 0 },
      null
    );
    if (null === workInProgressRoot) throw Error(formatProdErrorMessage(349));
    isHydrating$jscomp$0 ||
      0 !== (renderLanes & 60) ||
      pushStoreConsistencyCheck(fiber, getSnapshot, getServerSnapshot);
  }
  return getServerSnapshot;
}
function pushStoreConsistencyCheck(fiber, getSnapshot, renderedSnapshot) {
  fiber.flags |= 16384;
  fiber = { getSnapshot: getSnapshot, value: renderedSnapshot };