when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String $type,
    2. AtUri? repost,
    3. AtUri? like,
    4. bool? bookmarked,
    5. bool? threadMuted,
    6. bool? replyDisabled,
    7. bool? embeddingDisabled,
    8. bool? pinned,
    9. 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( String $type, @AtUriConverter()  AtUri? repost, @AtUriConverter()  AtUri? like,  bool? bookmarked,  bool? threadMuted,  bool? replyDisabled,  bool? embeddingDisabled,  bool? pinned,  Map<String, dynamic>? $unknown)  $default,) {final _that = this;
switch (_that) {
case _ViewerState():
return $default(_that.$type,_that.repost,_that.like,_that.bookmarked,_that.threadMuted,_that.replyDisabled,_that.embeddingDisabled,_that.pinned,_that.$unknown);case _:
  throw StateError('Unexpected subclass');

}
}