whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. AvatarType type,
    2. String? emoji,
    3. LayrzIcon? icon,
    4. String? url,
    5. String? base64,
    )?
)

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(@AvatarTypeConverter()  AvatarType type,  String? emoji, @IconOrNullConverter()  LayrzIcon? icon,  String? url,  String? base64)?  $default,) {final _that = this;
switch (_that) {
case _Avatar() when $default != null:
return $default(_that.type,_that.emoji,_that.icon,_that.url,_that.base64);case _:
  return null;

}
}