when<TResult extends Object?> method
- @optionalTypeArgs
- TResult $default(
- bool adultContentEnabled,
- Map<
String, LabelPreference> labels, - List<
ModerationPrefsLabeler> labelers, - List<
MutedWord> mutedWords,
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( bool adultContentEnabled, Map<String, LabelPreference> labels, List<ModerationPrefsLabeler> labelers, List<MutedWord> mutedWords, List<String> hiddenPosts) $default,) {final _that = this;
switch (_that) {
case _ModerationPrefs():
return $default(_that.adultContentEnabled,_that.labels,_that.labelers,_that.mutedWords,_that.hiddenPosts);case _:
throw StateError('Unexpected subclass');
}
}