when<TResult extends Object?> method
TResult
when<TResult extends Object?>()
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 id, @JsonKey(name: 'created') String created, TokenType type, bool livemode, BankAccount? bankAccount, CardData? card) $default,) {final _that = this;
switch (_that) {
case _TokenData():
return $default(_that.id,_that.created,_that.type,_that.livemode,_that.bankAccount,_that.card);case _:
throw StateError('Unexpected subclass');
}
}