whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String title,
    2. String id,
    3. Products products,
    4. List<Metafield> metafields,
    5. String? cursor,
    6. String? description,
    7. String? descriptionHtml,
    8. String? handle,
    9. String? updatedAt,
    10. ShopifyImage? image,
    )?
)

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 title,  String id,  Products products,  List<Metafield> metafields,  String? cursor,  String? description,  String? descriptionHtml,  String? handle,  String? updatedAt,  ShopifyImage? image)?  $default,) {final _that = this;
switch (_that) {
case _Collection() when $default != null:
return $default(_that.title,_that.id,_that.products,_that.metafields,_that.cursor,_that.description,_that.descriptionHtml,_that.handle,_that.updatedAt,_that.image);case _:
  return null;

}
}