whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String $type,
    2. String jobId,
    3. String did,
    4. @JobStatusStateConverter() JobStatusState state,
    5. int? progress,
    6. @BlobConverter() Blob? blob,
    7. String? error,
    8. String? message,
    9. Map<String, dynamic>? $unknown,
    )?
)

A variant of when that fallback to returning null

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String $type,  String jobId,  String did, @JobStatusStateConverter()  JobStatusState state,  int? progress, @BlobConverter()  Blob? blob,  String? error,  String? message,  Map<String, dynamic>? $unknown)?  $default,) {final _that = this;
switch (_that) {
case _JobStatus() when $default != null:
return $default(_that.$type,_that.jobId,_that.did,_that.state,_that.progress,_that.blob,_that.error,_that.message,_that.$unknown);case _:
  return null;

}
}