return true; else if (feature == XtextPackage.eINSTANCE.getAbstractRule_Type()) { final AbstractRule rule = (AbstractRule) owner; if (rule instanceof ParserRule || rule instanceof EnumRule) {
if (m == null || Strings.isEmpty(m.getAlias())) return YES; } else if (feature == XtextPackage.eINSTANCE.getAbstractRule_Type()) { final AbstractRule rule = (AbstractRule) owner; if (!GrammarUtil.isDatatypeRule(rule) && (rule instanceof ParserRule || rule instanceof EnumRule)) {