when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String? routingNumber,
    2. String? last4,
    3. UsBankAccountHolderType accountHolderType,
    4. UsBankAccountType accountType,
    5. String? bankName,
    6. String? fingerprint,
    7. String? linkedAccount,
    8. List<String>? preferredNetworks,
    9. List<String>? supportedNetworks,
    )
)

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? routingNumber,  String? last4,  UsBankAccountHolderType accountHolderType,  UsBankAccountType accountType,  String? bankName,  String? fingerprint,  String? linkedAccount,  List<String>? preferredNetworks,  List<String>? supportedNetworks)  $default,) {final _that = this;
switch (_that) {
case _UsBankAccount():
return $default(_that.routingNumber,_that.last4,_that.accountHolderType,_that.accountType,_that.bankName,_that.fingerprint,_that.linkedAccount,_that.preferredNetworks,_that.supportedNetworks);case _:
  throw StateError('Unexpected subclass');

}
}