when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. CardPaymentMethodDetails? paymentMethod,
    2. ShippingDetails? shipping,
    3. String? returnUrl,
    4. String? receiptEmail,
    5. PaymentIntentSetupFutureUsage? setupFutureUsage,
    6. dynamic paymentMethodOptions,
    )
)

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(@paymentMethodDetailJsonKey  CardPaymentMethodDetails? paymentMethod,  ShippingDetails? shipping, @JsonKey(name: "return_url")  String? returnUrl, @JsonKey(name: "receipt_email")  String? receiptEmail, @JsonKey(name: "setup_future_usage")  PaymentIntentSetupFutureUsage? setupFutureUsage, @JsonKey(name: "payment_method_options")  dynamic paymentMethodOptions)  $default,) {final _that = this;
switch (_that) {
case _ConfirmCardPaymentData():
return $default(_that.paymentMethod,_that.shipping,_that.returnUrl,_that.receiptEmail,_that.setupFutureUsage,_that.paymentMethodOptions);case _:
  throw StateError('Unexpected subclass');

}
}