public void rawInsertBeforeMe(@NotNull TreeElement firstNew) {
final TreeElement anchorPrev = getTreePrev();
if (anchorPrev == null) {
firstNew.rawRemoveUpToLast();
final CompositeElement p = getTreeParent();
if (p != null) p.setFirstChildNode(firstNew);
while (true) {
final TreeElement treeNext = firstNew.getTreeNext();
assert treeNext != this : "Attempt to create cycle";
firstNew.setTreeParent(p);
if (treeNext == null) break;
firstNew = treeNext;
}
setTreePrev(firstNew);
firstNew.setTreeNext(this);
if (p != null) {
p.subtreeChanged();
}
} else anchorPrev.rawInsertAfterMe(firstNew);
DebugUtil.checkTreeStructure(this);
}
