whenOrNull<TResult extends Object?> method

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? $default(String? name, String? addressLine1, String? addressLine2, String? addressCity, String? addressState, String? addressZip, String? addressCountry, String? currency,)?)

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? name, @JsonKey(name: "address_line1")  String? addressLine1, @JsonKey(name: "address_line2")  String? addressLine2, @JsonKey(name: "address_city")  String? addressCity, @JsonKey(name: "address_state")  String? addressState, @JsonKey(name: "address_zip")  String? addressZip, @JsonKey(name: "address_country")  String? addressCountry, @JsonKey(name: "currency")  String? currency)?  $default,) {final _that = this;
switch (_that) {
case _CreateTokenCardData() when $default != null:
return $default(_that.name,_that.addressLine1,_that.addressLine2,_that.addressCity,_that.addressState,_that.addressZip,_that.addressCountry,_that.currency);case _:
  return null;

}
}