when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String? id,
    2. String? email,
    3. String? phone,
    4. String? firstName,
    5. String? lastName,
    6. String displayName,
    7. MailingAddress? defaultAddress,
    8. dynamic numberOfOrders,
    9. bool? acceptsMarketing,
    )
)

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,  String? email,  String? phone,  String? firstName,  String? lastName,  String displayName,  MailingAddress? defaultAddress,  dynamic numberOfOrders,  bool? acceptsMarketing)  $default,) {final _that = this;
switch (_that) {
case _Customer():
return $default(_that.id,_that.email,_that.phone,_that.firstName,_that.lastName,_that.displayName,_that.defaultAddress,_that.numberOfOrders,_that.acceptsMarketing);case _:
  throw StateError('Unexpected subclass');

}
}