MambaException constructor

MambaException(String message, { int exitCode = 1, })

Implementation

new(this.message, {this.exitCode = 1}) {
  if (exitCode < 1 || exitCode > 255) {
    throw ArgumentError.value(
      exitCode,
      'exitCode',
      'must be between 1 and 255',
    );
  }
}