when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. int? id,
    2. QrCode? qrCode,
    3. int? qrCodeId,
    4. Sticker? sticker,
    5. int? stickerId,
    6. DateTime? createdDate,
    7. DateTime? endedDate,
    )
)

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( int? id,  QrCode? qrCode,  int? qrCodeId,  Sticker? sticker,  int? stickerId,  DateTime? createdDate,  DateTime? endedDate)  $default,) {final _that = this;
switch (_that) {
case _StickerTransaction():
return $default(_that.id,_that.qrCode,_that.qrCodeId,_that.sticker,_that.stickerId,_that.createdDate,_that.endedDate);case _:
  throw StateError('Unexpected subclass');

}
}