insertRenderObjectChild method

@override void insertRenderObjectChild(covariant RenderObject child, covariant _Slot? slot)

Copied from SliverMultiBoxAdaptorElement.insertRenderObjectChild. This method has been changed to prevent inserting off-list elements into the children list.

Implementation

@override
void insertRenderObjectChild(
    covariant RenderObject child, final _Slot? slot) {
  //""""""""""""""""""""""""""""""""""""""""""""""""""""""
  if (_creatingDisposableElement) {
    assert(slot == null);
    renderObject.setupParentData(child);
    renderObject.adoptChild(child);
    return;
  }
  //""""""""""""""""""""""""""""""""""""""""""""""""""""""
  assert(_currentlyUpdatingChildIndex == slot!.index);
  // assert(renderObject.debugValidateChild(child)); // l'ho asteriscato in MultiContainerRenderObjectMixin!!!!!!!!!!!!

  // final x = debugRenderBox(child);

  renderObject.insert(_currentlyUpdatingPopUpList, child as RenderBox,
      after: _currentBeforeChild);
  assert(() {
    final childParentData =
        child.parentData! as MultiSliverMultiBoxAdaptorParentData;
    assert(slot!.index == childParentData.index);
    return true;
  }());
}