Function prepareFreshStack

dash/deps/react-dom@18.3.1.js:26269–26310

(root, lanes)

  }

  function prepareFreshStack(root, lanes) {
    root.finishedWork = null;
    root.finishedLanes = NoLanes;
    var timeoutHandle = root.timeoutHandle;

    if (timeoutHandle !== noTimeout) {
      // The root previous suspended and scheduled a timeout to commit a fallback
      // state. Now that we have additional work, cancel the timeout.
      root.timeoutHandle = noTimeout; // $FlowFixMe Complains noTimeout is not a TimeoutID, despite the check above

      cancelTimeout(timeoutHandle);
    }

    if (workInProgress !== null) {
      var interruptedWork = workInProgress.return;

      while (interruptedWork !== null) {
        var current = interruptedWork.alternate;
        unwindInterruptedWork(current, interruptedWork);
        interruptedWork = interruptedWork.return;
      }
    }

    workInProgressRoot = root;
    var rootWorkInProgress = createWorkInProgress(root.current, null);
    workInProgress = rootWorkInProgress;
    workInProgressRootRenderLanes = subtreeRenderLanes = workInProgressRootIncludedLanes = lanes;
    workInProgressRootExitStatus = RootInProgress;
    workInProgressRootFatalError = null;
    workInProgressRootSkippedLanes = NoLanes;
    workInProgressRootInterleavedUpdatedLanes = NoLanes;
    workInProgressRootPingedLanes = NoLanes;
    workInProgressRootConcurrentErrors = null;
    workInProgressRootRecoverableErrors = null;
    finishQueueingConcurrentUpdates();

    {
      ReactStrictModeWarnings.discardPendingWarnings();
    }

    return rootWorkInProgress;
  }

  function handleError(root, thrownValue) {
    do {