Preconditions.checkState(
!localTypedefs.containsKey(qnameNode.getString()));
localTypedefs.put(qnameNode.getString(), td);
} else {
Preconditions.checkState(!isDefined(qnameNode));
QualifiedName qname = QualifiedName.fromNode(qnameNode);
Namespace ns = getNamespace(qname.getLeftmostName());
ns.addTypedef(qname.getAllButLeftmost(), td);
}
}