maybeMap<TResult extends Object?> method

@optionalTypeArgs TResult maybeMap<TResult extends Object?>({ TResult cancel(BaseApiCancelException value)?, TResult connectionTimeout(BaseApiConnectionTimeoutException value)?, TResult sendTimeout(BaseApiSendTimeoutException value)?, TResult receiveTimeout(BaseApiReceiveTimeoutException value)?, TResult badCertificate(BaseApiBadCertificateException value)?, TResult connectionError(BaseApiConnectionErrorException value)?, TResult badResponse(BaseApiBadResponseException value)?, TResult businessException(BaseApiBusinessException value)?, required TResult orElse(), })

A variant of map that fallback to returning orElse.

It is equivalent to doing:

switch (sealedClass) {
  case final Subclass value:
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs
TResult maybeMap<TResult extends Object?>({
  TResult Function(BaseApiCancelException value)? cancel,
  TResult Function(BaseApiConnectionTimeoutException value)?
      connectionTimeout,
  TResult Function(BaseApiSendTimeoutException value)? sendTimeout,
  TResult Function(BaseApiReceiveTimeoutException value)? receiveTimeout,
  TResult Function(BaseApiBadCertificateException value)? badCertificate,
  TResult Function(BaseApiConnectionErrorException value)? connectionError,
  TResult Function(BaseApiBadResponseException value)? badResponse,
  TResult Function(BaseApiBusinessException value)? businessException,
  required TResult orElse(),
}) {
  final _that = this;
  switch (_that) {
    case BaseApiCancelException() when cancel != null:
      return cancel(_that);
    case BaseApiConnectionTimeoutException() when connectionTimeout != null:
      return connectionTimeout(_that);
    case BaseApiSendTimeoutException() when sendTimeout != null:
      return sendTimeout(_that);
    case BaseApiReceiveTimeoutException() when receiveTimeout != null:
      return receiveTimeout(_that);
    case BaseApiBadCertificateException() when badCertificate != null:
      return badCertificate(_that);
    case BaseApiConnectionErrorException() when connectionError != null:
      return connectionError(_that);
    case BaseApiBadResponseException() when badResponse != null:
      return badResponse(_that);
    case BaseApiBusinessException() when businessException != null:
      return businessException(_that);
    case _:
      return orElse();
  }
}