maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. TResult $default(
    1. String? chassisNumber,
    2. String? engineNumber,
    3. String? model,
    4. String? color,
    5. String? controlNumber,
    6. int? id,
    7. Order? order,
    8. String? signature,
    9. String? identifier,
    10. String? purchaseOrderNumber,
    11. double? buyBackAmount,
    )?, {
  2. required TResult orElse(),
})

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String? chassisNumber,  String? engineNumber,  String? model,  String? color,  String? controlNumber,  int? id,  Order? order,  String? signature,  String? identifier,  String? purchaseOrderNumber,  double? buyBackAmount)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _QrCode() when $default != null:
return $default(_that.chassisNumber,_that.engineNumber,_that.model,_that.color,_that.controlNumber,_that.id,_that.order,_that.signature,_that.identifier,_that.purchaseOrderNumber,_that.buyBackAmount);case _:
  return orElse();

}
}