whenOrNull<TResult extends Object?> method

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? $default(String $type, @JsonKey.new(toJson: iso8601) DateTime createdAt, String attemptId, @AgeAssuranceEventStatusConverter() AgeAssuranceEventStatus status, @AccessConverter() Access? access, String? countryCode, String? regionCode, String? initIp, String? initUa, String? completeIp, String? completeUa, 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, @JsonKey(toJson: iso8601)  DateTime createdAt,  String attemptId, @AgeAssuranceEventStatusConverter()  AgeAssuranceEventStatus status, @AccessConverter()  Access? access,  String? countryCode,  String? regionCode,  String? initIp,  String? initUa,  String? completeIp,  String? completeUa,  Map<String, dynamic>? $unknown)?  $default,) {final _that = this;
switch (_that) {
case _AgeAssuranceEvent() when $default != null:
return $default(_that.$type,_that.createdAt,_that.attemptId,_that.status,_that.access,_that.countryCode,_that.regionCode,_that.initIp,_that.initUa,_that.completeIp,_that.completeUa,_that.$unknown);case _:
  return null;

}
}