Function entangleTransitionUpdate

dash/deps/react-dom@18.3.1.js:16750–16767

(root, queue, lane)

  function entangleTransitionUpdate(root, queue, lane) {
    if (isTransitionLane(lane)) {
      var queueLanes = queue.lanes; // If any entangled lanes are no longer pending on the root, then they
      // must have finished. We can remove them from the shared queue, which
      // represents a superset of the actually pending lanes. In some cases we
      // may entangle more than we need to, but that's OK. In fact it's worse if
      // we *don't* entangle when we should.

      queueLanes = intersectLanes(queueLanes, root.pendingLanes); // Entangle the new transition lane with the other transition lanes.

      var newQueueLanes = mergeLanes(queueLanes, lane);
      queue.lanes = newQueueLanes; // Even if queue.lanes already include lane, we don't know for certain if
      // the lane finished since the last time we entangled it. So we need to
      // entangle it again, just to be sure.

      markRootEntangled(root, newQueueLanes);
    }
  }

  function markUpdateInDevTools(fiber, lane, action) {