maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. TResult $default(
    1. String $type,
    2. @PostViewConverter() PostView post,
    3. @ReplyRefConverter() ReplyRef? reply,
    4. @UFeedViewPostReasonConverter() UFeedViewPostReason? reason,
    5. String? feedContext,
    6. String? reqId,
    7. Map<String, dynamic>? $unknown,
    )?, {
  2. 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 $type, @PostViewConverter()  PostView post, @ReplyRefConverter()  ReplyRef? reply, @UFeedViewPostReasonConverter()  UFeedViewPostReason? reason,  String? feedContext,  String? reqId,  Map<String, dynamic>? $unknown)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _FeedViewPost() when $default != null:
return $default(_that.$type,_that.post,_that.reply,_that.reason,_that.feedContext,_that.reqId,_that.$unknown);case _:
  return orElse();

}
}