whenOrNull<TResult extends Object?> method

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? $default(String kid, String kty, String alg, String? use, String? n, String? e, String? crv, String? x, String? y,)?)

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 kid,  String kty,  String alg,  String? use,  String? n,  String? e,  String? crv,  String? x,  String? y)?  $default,) {final _that = this;
switch (_that) {
case _JwtKey() when $default != null:
return $default(_that.kid,_that.kty,_that.alg,_that.use,_that.n,_that.e,_that.crv,_that.x,_that.y);case _:
  return null;

}
}