}
public int getPositionOfObject(EObject obj) {
int position = -1;
if (obj instanceof Element) {
Element elem = (Element) obj;
position = parser.getStartOfElement(elem);
if (obj instanceof NamedElement) {
String name = ((NamedElement) obj).getName();
if ("this".equals(name)) {
elem = (OperationalTransformation) ((NamedElement) elem)