Function commitPassiveUnmountEffects_begin

dash/deps/react-dom@18.2.0.js:24954–25009

()

  }

  function commitPassiveUnmountEffects_begin() {
    while (nextEffect !== null) {
      var fiber = nextEffect;
      var child = fiber.child;

      if ((nextEffect.flags & ChildDeletion) !== NoFlags) {
        var deletions = fiber.deletions;

        if (deletions !== null) {
          for (var i = 0; i < deletions.length; i++) {
            var fiberToDelete = deletions[i];
            nextEffect = fiberToDelete;
            commitPassiveUnmountEffectsInsideOfDeletedTree_begin(fiberToDelete, fiber);
          }

          {
            // A fiber was deleted from this parent fiber, but it's still part of
            // the previous (alternate) parent fiber's list of children. Because
            // children are a linked list, an earlier sibling that's still alive
            // will be connected to the deleted fiber via its `alternate`:
            //
            //   live fiber
            //   --alternate--> previous live fiber
            //   --sibling--> deleted fiber
            //
            // We can't disconnect `alternate` on nodes that haven't been deleted
            // yet, but we can disconnect the `sibling` and `child` pointers.
            var previousFiber = fiber.alternate;

            if (previousFiber !== null) {
              var detachedChild = previousFiber.child;

              if (detachedChild !== null) {
                previousFiber.child = null;

                do {
                  var detachedSibling = detachedChild.sibling;
                  detachedChild.sibling = null;
                  detachedChild = detachedSibling;
                } while (detachedChild !== null);
              }
            }
          }

          nextEffect = fiber;
        }
      }

      if ((fiber.subtreeFlags & PassiveMask) !== NoFlags && child !== null) {
        child.return = fiber;
        nextEffect = child;
      } else {
        commitPassiveUnmountEffects_complete();
      }
    }
  }

  function commitPassiveUnmountEffects_complete() {