whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String $type,
    2. ListPurpose purpose,
    3. String name,
    4. String? description,
    5. List<RichtextFacet>? descriptionFacets,
    6. Blob? avatar,
    7. UGraphListLabels? labels,
    8. DateTime createdAt,
    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, @ListPurposeConverter()  ListPurpose purpose,  String name,  String? description, @RichtextFacetConverter()  List<RichtextFacet>? descriptionFacets, @BlobConverter()  Blob? avatar, @UGraphListLabelsConverter()  UGraphListLabels? labels,  DateTime createdAt,  Map<String, dynamic>? $unknown)?  $default,) {final _that = this;
switch (_that) {
case _GraphListRecord() when $default != null:
return $default(_that.$type,_that.purpose,_that.name,_that.description,_that.descriptionFacets,_that.avatar,_that.labels,_that.createdAt,_that.$unknown);case _:
  return null;

}
}