whenOrNull<TResult extends Object?> method

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? $default(String email, String? name, String? callbackURL, String? newUserCallbackURL, String? errorCallbackURL,)?)

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 email,  String? name,  String? callbackURL,  String? newUserCallbackURL,  String? errorCallbackURL)?  $default,) {final _that = this;
switch (_that) {
case _MagicLinkBody() when $default != null:
return $default(_that.email,_that.name,_that.callbackURL,_that.newUserCallbackURL,_that.errorCallbackURL);case _:
  return null;

}
}