whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. XrayAddress address,
    2. int port,
    3. int? level,
    4. String? email,
    5. @JsonKey.new(name: 'method') String? cipher,
    6. String password,
    7. bool? uot,
    8. int? uotVersion,
    )?
)

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( XrayAddress address,  int port,  int? level,  String? email, @JsonKey(name: 'method')  String? cipher,  String password,  bool? uot,  int? uotVersion)?  $default,) {final _that = this;
switch (_that) {
case _ShadowsocksServerTarget() when $default != null:
return $default(_that.address,_that.port,_that.level,_that.email,_that.cipher,_that.password,_that.uot,_that.uotVersion);case _:
  return null;

}
}