Function commitRootImpl

dash/deps/react-dom@18.2.0.js:26701–26976

(root, recoverableErrors, transitions, renderPriorityLevel)

  }

  function commitRootImpl(root, recoverableErrors, transitions, renderPriorityLevel) {
    do {
      // `flushPassiveEffects` will call `flushSyncUpdateQueue` at the end, which
      // means `flushPassiveEffects` will sometimes result in additional
      // passive effects. So we need to keep flushing in a loop until there are
      // no more pending effects.
      // TODO: Might be better if `flushPassiveEffects` did not automatically
      // flush synchronous work at the end, to avoid factoring hazards like this.
      flushPassiveEffects();
    } while (rootWithPendingPassiveEffects !== null);

    flushRenderPhaseStrictModeWarningsInDEV();

    if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
      throw new Error('Should not already be working.');
    }

    var finishedWork = root.finishedWork;
    var lanes = root.finishedLanes;

    {
      markCommitStarted(lanes);
    }

    if (finishedWork === null) {

      {
        markCommitStopped();
      }

      return null;
    } else {
      {
        if (lanes === NoLanes) {
          error('root.finishedLanes should not be empty during a commit. This is a ' + 'bug in React.');
        }
      }
    }

    root.finishedWork = null;
    root.finishedLanes = NoLanes;

    if (finishedWork === root.current) {
      throw new Error('Cannot commit the same tree as before. This error is likely caused by ' + 'a bug in React. Please file an issue.');
    } // commitRoot never returns a continuation; it always finishes synchronously.
    // So we can clear these now to allow a new callback to be scheduled.


    root.callbackNode = null;
    root.callbackPriority = NoLane; // Update the first and last pending times on this root. The new first
    // pending time is whatever is left on the root fiber.

    var remainingLanes = mergeLanes(finishedWork.lanes, finishedWork.childLanes);
    markRootFinished(root, remainingLanes);

    if (root === workInProgressRoot) {
      // We can reset these now that they are finished.
      workInProgressRoot = null;