whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String $type,
    2. int id,
    3. @ScheduledActionViewActionConverter() ScheduledActionViewAction action,
    4. Map<String, dynamic>? eventData,
    5. String did,
    6. @JsonKey.new(toJson: iso8601) DateTime? executeAt,
    7. @JsonKey.new(toJson: iso8601) DateTime? executeAfter,
    8. @JsonKey.new(toJson: iso8601) DateTime? executeUntil,
    9. bool? randomizeExecution,
    10. String createdBy,
    11. @JsonKey.new(toJson: iso8601) DateTime createdAt,
    12. @JsonKey.new(toJson: iso8601) DateTime? updatedAt,
    13. @ScheduledActionViewStatusConverter() ScheduledActionViewStatus status,
    14. @JsonKey.new(toJson: iso8601) DateTime? lastExecutedAt,
    15. String? lastFailureReason,
    16. int? executionEventId,
    17. Map<String, dynamic>? $unknown,
    )?
)

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( String $type,  int id, @ScheduledActionViewActionConverter()  ScheduledActionViewAction action,  Map<String, dynamic>? eventData,  String did, @JsonKey(toJson: iso8601)  DateTime? executeAt, @JsonKey(toJson: iso8601)  DateTime? executeAfter, @JsonKey(toJson: iso8601)  DateTime? executeUntil,  bool? randomizeExecution,  String createdBy, @JsonKey(toJson: iso8601)  DateTime createdAt, @JsonKey(toJson: iso8601)  DateTime? updatedAt, @ScheduledActionViewStatusConverter()  ScheduledActionViewStatus status, @JsonKey(toJson: iso8601)  DateTime? lastExecutedAt,  String? lastFailureReason,  int? executionEventId,  Map<String, dynamic>? $unknown)?  $default,) {final _that = this;
switch (_that) {
case _ScheduledActionView() when $default != null:
return $default(_that.$type,_that.id,_that.action,_that.eventData,_that.did,_that.executeAt,_that.executeAfter,_that.executeUntil,_that.randomizeExecution,_that.createdBy,_that.createdAt,_that.updatedAt,_that.status,_that.lastExecutedAt,_that.lastFailureReason,_that.executionEventId,_that.$unknown);case _:
  return null;

}
}