when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. List<ThreadItem> thread,
    2. ThreadgateView? threadgate,
    3. bool hasOtherReplies,
    4. 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(@ThreadItemConverter()  List<ThreadItem> thread, @ThreadgateViewConverter()  ThreadgateView? threadgate,  bool hasOtherReplies,  Map<String, dynamic>? $unknown)  $default,) {final _that = this;
switch (_that) {
case _UnspeccedGetPostThreadV2Output():
return $default(_that.thread,_that.threadgate,_that.hasOtherReplies,_that.$unknown);case _:
  throw StateError('Unexpected subclass');

}
}