final String typeS = type.atomValue();
if ("error".equals(typeS)) {
final OtpErlangTuple er = (OtpErlangTuple) el.elementAt(1);
final String msg = helper.formatError(er);
final ErlParserProblem e = ErlParserProblem.newError(module, msg);
setPos(e, er.elementAt(0));
return e;
} else if ("tree".equals(typeS)) {
final OtpErlangTuple atr = (OtpErlangTuple) el.elementAt(3);
final OtpErlangObject pos = ((OtpErlangTuple) el.elementAt(2)).elementAt(1);
final OtpErlangTuple name = (OtpErlangTuple) atr.elementAt(1);