maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. TResult $default(
    1. PaymentElementFieldRequired line1,
    2. PaymentElementFieldRequired line2,
    3. PaymentElementFieldRequired city,
    4. PaymentElementFieldRequired state,
    5. PaymentElementFieldRequired country,
    6. PaymentElementFieldRequired postalCode,
    )?, {
  2. required TResult orElse(),
})

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( PaymentElementFieldRequired line1,  PaymentElementFieldRequired line2,  PaymentElementFieldRequired city,  PaymentElementFieldRequired state,  PaymentElementFieldRequired country,  PaymentElementFieldRequired postalCode)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _PaymentElementAddressFields() when $default != null:
return $default(_that.line1,_that.line2,_that.city,_that.state,_that.country,_that.postalCode);case _:
  return orElse();

}
}