protected final void rawInsertAfterMeWithoutNotifications(TreeElement firstNew) {
firstNew.rawRemoveUpToWithoutNotifications(null, false);
final CompositeElement p = getTreeParent();
final TreeElement treeNext = getTreeNext();
firstNew.setTreePrev(this);
setTreeNext(firstNew);
while (true) {
final TreeElement n = firstNew.getTreeNext();
assert n != this : "Attempt to create cycle";
firstNew.setTreeParent(p);
if (n == null) break;
firstNew = n;
}
if (treeNext == null) {
if (p != null) {
firstNew.setTreeParent(p);
p.setLastChildNode(firstNew);
}
} else {
firstNew.setTreeNext(treeNext);
treeNext.setTreePrev(firstNew);
}
DebugUtil.checkTreeStructure(this);
}
// remove nodes from this[including] to end[excluding] from the parent
public void rawRemoveUpTo(@Nullable TreeElement end) {
CompositeElement parent = getTreeParent();
rawRemoveUpToWithoutNotifications(end, true);
if (parent != null) {
parent.subtreeChanged();
}
}