when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String $type,
    2. int? pendingCount,
    3. int? closureTargetOverdueCount,
    4. int? closureTargetMetCount,
    5. int? closureTargetMissedCount,
    6. int? closureTargetMetRate,
    7. int? actionedCount,
    8. int? escalatedCount,
    9. int? inboundCount,
    10. int? actionRate,
    11. int? avgHandlingTimeSec,
    12. @JsonKey.new(toJson: iso8601) DateTime? lastUpdated,
    13. 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? pendingCount,  int? closureTargetOverdueCount,  int? closureTargetMetCount,  int? closureTargetMissedCount,  int? closureTargetMetRate,  int? actionedCount,  int? escalatedCount,  int? inboundCount,  int? actionRate,  int? avgHandlingTimeSec, @JsonKey(toJson: iso8601)  DateTime? lastUpdated,  Map<String, dynamic>? $unknown)  $default,) {final _that = this;
switch (_that) {
case _QueueStats():
return $default(_that.$type,_that.pendingCount,_that.closureTargetOverdueCount,_that.closureTargetMetCount,_that.closureTargetMissedCount,_that.closureTargetMetRate,_that.actionedCount,_that.escalatedCount,_that.inboundCount,_that.actionRate,_that.avgHandlingTimeSec,_that.lastUpdated,_that.$unknown);case _:
  throw StateError('Unexpected subclass');

}
}