@Override
      List<String> matches(Object src, ProcessingContext context) {
        if (src instanceof GdslType) {
          return arg.equals(((GdslType)src).getName()) ? Collections.singletonList((String)arg) : null;
        }
        if (src instanceof GdslMethod) {
          return arg.equals(((GdslMethod)src).getName()) ? Collections.singletonList((String)arg) : null;
        }
        return Collections.emptyList();
      }
@Override
      List<String> matches(Object src, ProcessingContext context)