Function dispatchAction

docs/external/js/react-dom.development.js:15702–15797

(fiber, queue, action)

  }

  function dispatchAction(fiber, queue, action) {
    {
      if (typeof arguments[3] === 'function') {
        error("State updates from the useState() and useReducer() Hooks don't support the " + 'second callback argument. To execute a side effect after ' + 'rendering, declare it in the component body with useEffect().');
      }
    }

    var currentTime = requestCurrentTimeForUpdate();
    var suspenseConfig = requestCurrentSuspenseConfig();
    var expirationTime = computeExpirationForFiber(currentTime, fiber, suspenseConfig);
    var update = {
      expirationTime: expirationTime,
      suspenseConfig: suspenseConfig,
      action: action,
      eagerReducer: null,
      eagerState: null,
      next: null
    };

    {
      update.priority = getCurrentPriorityLevel();
    } // Append the update to the end of the list.


    var pending = queue.pending;

    if (pending === null) {
      // This is the first update. Create a circular list.
      update.next = update;
    } else {
      update.next = pending.next;
      pending.next = update;
    }

    queue.pending = update;
    var alternate = fiber.alternate;

    if (fiber === currentlyRenderingFiber$1 || alternate !== null && alternate === currentlyRenderingFiber$1) {
      // This is a render phase update. Stash it in a lazily-created map of
      // queue -> linked list of updates. After this render pass, we'll restart
      // and apply the stashed updates on top of the work-in-progress hook.
      didScheduleRenderPhaseUpdate = true;
      update.expirationTime = renderExpirationTime;
      currentlyRenderingFiber$1.expirationTime = renderExpirationTime;
    } else {
      if (fiber.expirationTime === NoWork && (alternate === null || alternate.expirationTime === NoWork)) {
        // The queue is currently empty, which means we can eagerly compute the
        // next state before entering the render phase. If the new state is the
        // same as the current state, we may be able to bail out entirely.
        var lastRenderedReducer = queue.lastRenderedReducer;

        if (lastRenderedReducer !== null) {
          var prevDispatcher;

          {
            prevDispatcher = ReactCurrentDispatcher.current;
            ReactCurrentDispatcher.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
          }