@Override
final void setFirstChildNode(TreeElement child) {
if (myText() != null) {
LOG.error("Mutating collapsed chameleon");
}
super.setFirstChildNode(child);
}
// remove nodes from this[including] to end[excluding] from the parent
protected final void rawRemoveUpToWithoutNotifications(TreeElement end, boolean invalidate) {
if (this == end) return;
final CompositeElement parent = getTreeParent();
final TreeElement startPrev = getTreePrev();
final TreeElement endPrev = end != null ? end.getTreePrev() : null;
assert end == null || end.getTreeParent() == parent : "Trying to remove non-child";
if (end != null) {
TreeElement element;
for (element = this; element != end && element != null; element = element.getTreeNext()) ;
assert element == end : end + " is not successor of " + this + " in the .getTreeNext() chain";
}
if (parent != null) {
if (this == parent.getFirstChildNode()) {
parent.setFirstChildNode(end);
}
if (end == null) {
parent.setLastChildNode(startPrev);
}
}
if (startPrev != null) {
startPrev.setTreeNext(end);
}
if (end != null) {
end.setTreePrev(startPrev);
}
setTreePrev(null);
if (endPrev != null) {
endPrev.setTreeNext(null);
}
if (parent != null) {
for (TreeElement element = this; element != null; element = element.getTreeNext()) {
element.setTreeParent(null);
if (invalidate) {
element.onInvalidated();
}
}
}
DebugUtil.checkTreeStructure(parent);
DebugUtil.checkTreeStructure(this);
}
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);
}
public void rawRemove() {
final TreeElement next = getTreeNext();
final CompositeElement parent = getTreeParent();
final TreeElement prev = getTreePrev();
if (prev != null) {
prev.setTreeNext(next);
} else if (parent != null) {
parent.setFirstChildNode(next);
}
if (next != null) {
next.setTreePrev(prev);
} else if (parent != null) {
parent.setLastChildNode(prev);
}
DebugUtil.checkTreeStructure(parent);
DebugUtil.checkTreeStructure(prev);
DebugUtil.checkTreeStructure(next);
invalidate();
}