when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String $type,
    2. int id,
    3. @USubjectStatusViewSubjectConverter() USubjectStatusViewSubject subject,
    4. @USubjectStatusViewHostingConverter() USubjectStatusViewHosting? hosting,
    5. List<String>? subjectBlobCids,
    6. String? subjectRepoHandle,
    7. @JsonKey.new(toJson: iso8601) DateTime updatedAt,
    8. @JsonKey.new(toJson: iso8601) DateTime createdAt,
    9. @SubjectReviewStateConverter() SubjectReviewState reviewState,
    10. String? comment,
    11. int? priorityScore,
    12. @JsonKey.new(toJson: iso8601) DateTime? muteUntil,
    13. @JsonKey.new(toJson: iso8601) DateTime? muteReportingUntil,
    14. String? lastReviewedBy,
    15. @JsonKey.new(toJson: iso8601) DateTime? lastReviewedAt,
    16. @JsonKey.new(toJson: iso8601) DateTime? lastReportedAt,
    17. @JsonKey.new(toJson: iso8601) DateTime? lastAppealedAt,
    18. bool? takendown,
    19. bool? appealed,
    20. @JsonKey.new(toJson: iso8601) DateTime? suspendUntil,
    21. List<String>? tags,
    22. @AccountStatsConverter() AccountStats? accountStats,
    23. @RecordsStatsConverter() RecordsStats? recordsStats,
    24. @AccountStrikeConverter() AccountStrike? accountStrike,
    25. @SubjectStatusViewAgeAssuranceStateConverter() SubjectStatusViewAgeAssuranceState? ageAssuranceState,
    26. @SubjectStatusViewAgeAssuranceUpdatedByConverter() SubjectStatusViewAgeAssuranceUpdatedBy? ageAssuranceUpdatedBy,
    27. Map<String, dynamic>? $unknown,
    )
)

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( String $type,  int id, @USubjectStatusViewSubjectConverter()  USubjectStatusViewSubject subject, @USubjectStatusViewHostingConverter()  USubjectStatusViewHosting? hosting,  List<String>? subjectBlobCids,  String? subjectRepoHandle, @JsonKey(toJson: iso8601)  DateTime updatedAt, @JsonKey(toJson: iso8601)  DateTime createdAt, @SubjectReviewStateConverter()  SubjectReviewState reviewState,  String? comment,  int? priorityScore, @JsonKey(toJson: iso8601)  DateTime? muteUntil, @JsonKey(toJson: iso8601)  DateTime? muteReportingUntil,  String? lastReviewedBy, @JsonKey(toJson: iso8601)  DateTime? lastReviewedAt, @JsonKey(toJson: iso8601)  DateTime? lastReportedAt, @JsonKey(toJson: iso8601)  DateTime? lastAppealedAt,  bool? takendown,  bool? appealed, @JsonKey(toJson: iso8601)  DateTime? suspendUntil,  List<String>? tags, @AccountStatsConverter()  AccountStats? accountStats, @RecordsStatsConverter()  RecordsStats? recordsStats, @AccountStrikeConverter()  AccountStrike? accountStrike, @SubjectStatusViewAgeAssuranceStateConverter()  SubjectStatusViewAgeAssuranceState? ageAssuranceState, @SubjectStatusViewAgeAssuranceUpdatedByConverter()  SubjectStatusViewAgeAssuranceUpdatedBy? ageAssuranceUpdatedBy,  Map<String, dynamic>? $unknown)  $default,) {final _that = this;
switch (_that) {
case _SubjectStatusView():
return $default(_that.$type,_that.id,_that.subject,_that.hosting,_that.subjectBlobCids,_that.subjectRepoHandle,_that.updatedAt,_that.createdAt,_that.reviewState,_that.comment,_that.priorityScore,_that.muteUntil,_that.muteReportingUntil,_that.lastReviewedBy,_that.lastReviewedAt,_that.lastReportedAt,_that.lastAppealedAt,_that.takendown,_that.appealed,_that.suspendUntil,_that.tags,_that.accountStats,_that.recordsStats,_that.accountStrike,_that.ageAssuranceState,_that.ageAssuranceUpdatedBy,_that.$unknown);case _:
  throw StateError('Unexpected subclass');

}
}