maybeWhen<TResult extends Object?> method
- @optionalTypeArgs
- TResult $default(
- String chatId,
- String id,
- ChatEventRole role,
- int timestamp,
- ChatEventType type,
- String? emotionFeatures,
- String? messageText,
- String? metadata,
- required TResult orElse(),
A variant of when that fallback to an orElse callback.
It is equivalent to doing:
switch (sealedClass) {
case Subclass(:final field):
return ...;
case _:
return orElse();
}
Implementation
@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String chatId, String id, ChatEventRole role, int timestamp, ChatEventType type, String? emotionFeatures, String? messageText, String? metadata, String? relatedEventId)? $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _ChatEvent() when $default != null:
return $default(_that.chatId,_that.id,_that.role,_that.timestamp,_that.type,_that.emotionFeatures,_that.messageText,_that.metadata,_that.relatedEventId);case _:
return orElse();
}
}