maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. TResult $default(
    1. String $type,
    2. @AtUriConverter.new() AtUri generator,
    3. @GeneratorLikeItemConverter() List<GeneratorLikeItem> items,
    4. Map<String, dynamic>? $unknown,
    )?, {
  2. required TResult orElse(),
})

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

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

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String $type, @AtUriConverter()  AtUri generator, @GeneratorLikeItemConverter()  List<GeneratorLikeItem> items,  Map<String, dynamic>? $unknown)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _GeneratorLikeGroup() when $default != null:
return $default(_that.$type,_that.generator,_that.items,_that.$unknown);case _:
  return orElse();

}
}