whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. XrayAddress? address,
    2. int? port,
    3. Map<String, String>? portMap,
    4. @JsonKey.new(name: 'network') XrayNetworkList? network,
    5. bool? followRedirect,
    6. int? userLevel,
    )?
)

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,  Map<String, String>? portMap, @JsonKey(name: 'network')  XrayNetworkList? network,  bool? followRedirect,  int? userLevel)?  $default,) {final _that = this;
switch (_that) {
case _DokodemoConfig() when $default != null:
return $default(_that.address,_that.port,_that.portMap,_that.network,_that.followRedirect,_that.userLevel);case _:
  return null;

}
}