when<TResult extends Object?> method

@optionalTypeArgs TResult when<TResult extends Object?>(TResult $default(List<String>? enumValue, String defaultValue, String? description))

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: 'enum')  List<String>? enumValue, @JsonKey(name: 'default')  String defaultValue,  String? description)  $default,) {final _that = this;
switch (_that) {
case _ServerVariable():
return $default(_that.enumValue,_that.defaultValue,_that.description);case _:
  throw StateError('Unexpected subclass');

}
}