Function rerenderReducer

dash/deps/react-dom@18.3.1.js:15904–15953

(reducer, initialArg, init)

  }

  function rerenderReducer(reducer, initialArg, init) {
    var hook = updateWorkInProgressHook();
    var queue = hook.queue;

    if (queue === null) {
      throw new Error('Should have a queue. This is likely a bug in React. Please file an issue.');
    }

    queue.lastRenderedReducer = reducer; // This is a re-render. Apply the new render phase updates to the previous
    // work-in-progress hook.

    var dispatch = queue.dispatch;
    var lastRenderPhaseUpdate = queue.pending;
    var newState = hook.memoizedState;

    if (lastRenderPhaseUpdate !== null) {
      // The queue doesn't persist past this render pass.
      queue.pending = null;
      var firstRenderPhaseUpdate = lastRenderPhaseUpdate.next;
      var update = firstRenderPhaseUpdate;

      do {
        // Process this render phase update. We don't have to check the
        // priority because it will always be the same as the current
        // render's.
        var action = update.action;
        newState = reducer(newState, action);
        update = update.next;
      } while (update !== firstRenderPhaseUpdate); // Mark that the fiber performed work, but only if the new state is
      // different from the current state.


      if (!objectIs(newState, hook.memoizedState)) {
        markWorkInProgressReceivedUpdate();
      }

      hook.memoizedState = newState; // Don't persist the state accumulated from the render phase updates to
      // the base state unless the queue is empty.
      // TODO: Not sure if this is the desired semantics, but it's what we
      // do for gDSFP. I can't remember why.

      if (hook.baseQueue === null) {
        hook.baseState = newState;
      }

      queue.lastRenderedState = newState;
    }

    return [newState, dispatch];
  }

  function mountMutableSource(source, getSnapshot, subscribe) {
    {