when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String $type,
    2. int seq,
    3. String repo,
    4. String commit,
    5. String rev,
    6. String? since,
    7. Map<String, dynamic> blocks,
    8. List<RepoOp> ops,
    9. String? prevData,
    10. DateTime time,
    11. 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,  int seq,  String repo,  String commit,  String rev,  String? since,  Map<String, dynamic> blocks, @RepoOpConverter()  List<RepoOp> ops,  String? prevData,  DateTime time,  Map<String, dynamic>? $unknown)  $default,) {final _that = this;
switch (_that) {
case _Commit():
return $default(_that.$type,_that.seq,_that.repo,_that.commit,_that.rev,_that.since,_that.blocks,_that.ops,_that.prevData,_that.time,_that.$unknown);case _:
  throw StateError('Unexpected subclass');

}
}