when<TResult extends Object?> method

@optionalTypeArgs TResult when<TResult extends Object?>(TResult $default(@JsonKey.new(name: 'customerID') String? id, @JsonKey.new(name: 'profileID') String? profileID, @JsonKey.new(name: 'id') String? customerID, @JsonKey.new(name: 'receivables_account') ReceivablesAccount? receivablesAccount, @JsonKey.new(name: 'active ') bool? active,))

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(@JsonKey(name: 'customerID')  String? id, @JsonKey(name: 'profileID')  String? profileID, @JsonKey(name: 'id')  String? customerID, @JsonKey(name: 'receivables_account')  ReceivablesAccount? receivablesAccount, @JsonKey(name: 'active ')  bool? active)  $default,) {final _that = this;
switch (_that) {
case _Customer():
return $default(_that.id,_that.profileID,_that.customerID,_that.receivablesAccount,_that.active);case _:
  throw StateError('Unexpected subclass');

}
}