Enum extension

main.dart

enum TransferStatus {
  created,
  authorizing,
  sending,
  verifying,
  pending,
  refunded,
  success,
  error,
}

extension TransferStatusExtension on TransferStatus {
  static const processingStatuses = [
    TransferStatus.pending,
    TransferStatus.authorizing
  ];

  bool get isProcessing {
    return processingStatuses.contains(this);
  }
}

void main() {
  const status = TransferStatus.pending;

  if (status.isProcessing) {
    print("Processing");
  }
}