whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String $type,
    2. String feed,
    3. bool? hideReplies,
    4. bool hideRepliesByUnfollowed,
    5. int? hideRepliesByLikeCount,
    6. bool? hideReposts,
    7. bool? hideQuotePosts,
    8. 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 feed,  bool? hideReplies,  bool hideRepliesByUnfollowed,  int? hideRepliesByLikeCount,  bool? hideReposts,  bool? hideQuotePosts,  Map<String, dynamic>? $unknown)?  $default,) {final _that = this;
switch (_that) {
case _FeedViewPref() when $default != null:
return $default(_that.$type,_that.feed,_that.hideReplies,_that.hideRepliesByUnfollowed,_that.hideRepliesByLikeCount,_that.hideReposts,_that.hideQuotePosts,_that.$unknown);case _:
  return null;

}
}