when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String? firstName,
    2. String? lastName,
    3. String? line1,
    4. String? line2,
    5. String? city,
    6. String? state,
    7. String? postalCode,
    8. String? country,
    9. bool? isFullAddress,
    10. bool? isStoreAddress,
    )
)

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? firstName,
          String? lastName,
          String? line1,
          String? line2,
          String? city,
          String? state,
          String? postalCode,
          String? country,
          bool? isFullAddress,
          bool? isStoreAddress)
      $default,
) {
  final _that = this;
  switch (_that) {
    case _PPCartAddress():
      return $default(
          _that.firstName,
          _that.lastName,
          _that.line1,
          _that.line2,
          _that.city,
          _that.state,
          _that.postalCode,
          _that.country,
          _that.isFullAddress,
          _that.isStoreAddress);
    case _:
      throw StateError('Unexpected subclass');
  }
}