whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. int? id,
    2. String? name,
    3. String? login,
    4. String? company,
    5. String? blog,
    6. String? location,
    7. String? email,
    8. int publicReposCount,
    9. int publicGistsCount,
    10. int followersCount,
    11. int followingCount,
    12. ModelUri? htmlUrl,
    13. ModelImageUri? avatarUrl,
    14. GithubOrganizationType type,
    15. ModelTimestamp createdAt,
    16. ModelTimestamp updatedAt,
    )?
)

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? id,
          String? name,
          String? login,
          String? company,
          String? blog,
          String? location,
          String? email,
          int publicReposCount,
          int publicGistsCount,
          int followersCount,
          int followingCount,
          ModelUri? htmlUrl,
          ModelImageUri? avatarUrl,
          GithubOrganizationType type,
          ModelTimestamp createdAt,
          ModelTimestamp updatedAt)?
      $default,
) {
  final _that = this;
  switch (_that) {
    case _GithubOrganizationModel() when $default != null:
      return $default(
          _that.id,
          _that.name,
          _that.login,
          _that.company,
          _that.blog,
          _that.location,
          _that.email,
          _that.publicReposCount,
          _that.publicGistsCount,
          _that.followersCount,
          _that.followingCount,
          _that.htmlUrl,
          _that.avatarUrl,
          _that.type,
          _that.createdAt,
          _that.updatedAt);
    case _:
      return null;
  }
}