when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String? profileID,
    2. bool? allowWhatsApp,
    3. bool? allowText,
    4. bool? allowPush,
    5. bool? allowEmail,
    )
)

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs
TResult when<TResult extends Object?>(
  TResult Function(
          @JsonKey(name: 'profileID') String? profileID,
          @JsonKey(name: 'allowWhatsApp') bool? allowWhatsApp,
          @JsonKey(name: 'allowTextSMS') bool? allowText,
          @JsonKey(name: 'allowPush') bool? allowPush,
          @JsonKey(name: 'allowEmail') bool? allowEmail)
      $default,
) {
  final _that = this;
  switch (_that) {
    case _CommunicationSettings():
      return $default(_that.profileID, _that.allowWhatsApp, _that.allowText,
          _that.allowPush, _that.allowEmail);
    case _:
      throw StateError('Unexpected subclass');
  }
}