maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. TResult $default(
    1. String $type,
    2. @FilterablePreferenceConverter() FilterablePreference follow,
    3. @FilterablePreferenceConverter() FilterablePreference like,
    4. @FilterablePreferenceConverter() FilterablePreference likeViaRepost,
    5. @FilterablePreferenceConverter() FilterablePreference mention,
    6. @FilterablePreferenceConverter() FilterablePreference quote,
    7. @FilterablePreferenceConverter() FilterablePreference reply,
    8. @FilterablePreferenceConverter() FilterablePreference repost,
    9. @FilterablePreferenceConverter() FilterablePreference repostViaRepost,
    10. @PreferenceConverter() Preference starterpackJoined,
    11. @PreferenceConverter() Preference subscribedPost,
    12. @PreferenceConverter() Preference unverified,
    13. @PreferenceConverter() Preference verified,
    14. 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, @FilterablePreferenceConverter()  FilterablePreference follow, @FilterablePreferenceConverter()  FilterablePreference like, @FilterablePreferenceConverter()  FilterablePreference likeViaRepost, @FilterablePreferenceConverter()  FilterablePreference mention, @FilterablePreferenceConverter()  FilterablePreference quote, @FilterablePreferenceConverter()  FilterablePreference reply, @FilterablePreferenceConverter()  FilterablePreference repost, @FilterablePreferenceConverter()  FilterablePreference repostViaRepost, @PreferenceConverter()  Preference starterpackJoined, @PreferenceConverter()  Preference subscribedPost, @PreferenceConverter()  Preference unverified, @PreferenceConverter()  Preference verified,  Map<String, dynamic>? $unknown)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _Preferences() when $default != null:
return $default(_that.$type,_that.follow,_that.like,_that.likeViaRepost,_that.mention,_that.quote,_that.reply,_that.repost,_that.repostViaRepost,_that.starterpackJoined,_that.subscribedPost,_that.unverified,_that.verified,_that.$unknown);case _:
  return orElse();

}
}