whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String $type,
    2. String date,
    3. @JsonKey.new(toJson: iso8601) DateTime? computedAt,
    4. int? pendingCount,
    5. int? closedCount,
    6. int? actionedCount,
    7. int? acknowledgedCount,
    8. int? escalatedCount,
    9. int? inboundCount,
    10. int? labelActionCount,
    11. int? tagActionCount,
    12. int? takedownActionCount,
    13. int? ahtDurationSec,
    14. int? ahtSampleCount,
    15. int? resolutionDurationSec,
    16. int? resolutionSampleCount,
    17. int? actionRate,
    18. int? avgHandlingTimeSec,
    19. int? avgResolutionTimeSec,
    20. 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,  String date, @JsonKey(toJson: iso8601)  DateTime? computedAt,  int? pendingCount,  int? closedCount,  int? actionedCount,  int? acknowledgedCount,  int? escalatedCount,  int? inboundCount,  int? labelActionCount,  int? tagActionCount,  int? takedownActionCount,  int? ahtDurationSec,  int? ahtSampleCount,  int? resolutionDurationSec,  int? resolutionSampleCount,  int? actionRate,  int? avgHandlingTimeSec,  int? avgResolutionTimeSec,  Map<String, dynamic>? $unknown)?  $default,) {final _that = this;
switch (_that) {
case _HistoricalStats() when $default != null:
return $default(_that.$type,_that.date,_that.computedAt,_that.pendingCount,_that.closedCount,_that.actionedCount,_that.acknowledgedCount,_that.escalatedCount,_that.inboundCount,_that.labelActionCount,_that.tagActionCount,_that.takedownActionCount,_that.ahtDurationSec,_that.ahtSampleCount,_that.resolutionDurationSec,_that.resolutionSampleCount,_that.actionRate,_that.avgHandlingTimeSec,_that.avgResolutionTimeSec,_that.$unknown);case _:
  return null;

}
}