whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. int? number,
    2. String? name,
    3. String? status,
    4. String? conclusion,
    5. ModelTimestamp? startedAt,
    6. ModelTimestamp? completedAt,
    )?
)

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(
          int? number,
          String? name,
          String? status,
          String? conclusion,
          ModelTimestamp? startedAt,
          ModelTimestamp? completedAt)?
      $default,
) {
  final _that = this;
  switch (_that) {
    case _GithubActionsStepValue() when $default != null:
      return $default(_that.number, _that.name, _that.status,
          _that.conclusion, _that.startedAt, _that.completedAt);
    case _:
      return null;
  }
}