public static boolean isUnique(int role) {
    switch(role){
      case ChildRoleBase.NONE:
      case CLASS:
      case FIELD:
      case METHOD:
      case PARAMETER:
      case CLASS_INITIALIZER:
      case COMMA:
      case REFERENCE_IN_LIST:
      case EXPRESSION_IN_LIST:
      case ARRAY_DIMENSION:
      case TYPE_PARAMETER_IN_LIST:
      case ANNOTATION_VALUE:
        return false;
      default:
        return true;
    }
  }
public static boolean isUnique(int role)