when<TResult extends Object?> method
- @optionalTypeArgs
- TResult $default(
- UModerationEmitEventEvent event,
- UModerationEmitEventSubject subject,
- List<
String> ? subjectBlobCids, - String createdBy,
- ModTool? modTool,
- String? externalId,
- Map<
String, dynamic> ? $unknown,
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(@UModerationEmitEventEventConverter() UModerationEmitEventEvent event, @UModerationEmitEventSubjectConverter() UModerationEmitEventSubject subject, List<String>? subjectBlobCids, String createdBy, @ModToolConverter() ModTool? modTool, String? externalId, Map<String, dynamic>? $unknown) $default,) {final _that = this;
switch (_that) {
case _ModerationEmitEventInput():
return $default(_that.event,_that.subject,_that.subjectBlobCids,_that.createdBy,_that.modTool,_that.externalId,_that.$unknown);case _:
throw StateError('Unexpected subclass');
}
}