whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. bool initialized,
    2. bool synced,
    3. DateTime? lastSync,
    4. double appVersion,
    5. bool appRegistered,
    6. Map<String, dynamic> data,
    7. Map<String, bool> saveKeys,
    )?
)

A variant of when that fallback to returning null

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  TResult? Function(
          bool initialized,
          bool synced,
          DateTime? lastSync,
          double appVersion,
          bool appRegistered,
          Map<String, dynamic> data,
          Map<String, bool> saveKeys)?
      $default,
) {
  final _that = this;
  switch (_that) {
    case _NetsCoreState() when $default != null:
      return $default(_that.initialized, _that.synced, _that.lastSync,
          _that.appVersion, _that.appRegistered, _that.data, _that.saveKeys);
    case _:
      return null;
  }
}