/**
* Duplicate a tree, assuming this is a root node of a tree-- duplicate that node and what's
* below; ignore siblings of root node.
*/
public static GrammarAST dupTreeNoActions(GrammarAST t, GrammarAST parent) {
if (t == null) {
return null;
}
GrammarAST result = (GrammarAST) t.dupNode();
for (GrammarAST subchild : getChildrenForDupTree(t)) {
result.addChild(dupTreeNoActions(subchild, result));
}
return result;
}
public static GrammarAST dupTree(GrammarAST t) {
if (t == null) {
return null;
}
GrammarAST root = dup(t); // make copy of root
// copy all children of root.
for (int i = 0; i < t.getChildCount(); i++) {
GrammarAST child = (GrammarAST) t.getChild(i);
root.addChild(dupTree(child));
}
return root;
}