whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String? name,
    2. @JsonKey.new(name: 'mtu') int? mtu,
    3. List<String>? gateway,
    4. @JsonKey.new(name: 'dns') List<String>? dns,
    5. int? userLevel,
    6. List<String>? autoSystemRoutingTable,
    7. String? autoOutboundsInterface,
    )?
)

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? name, @JsonKey(name: 'mtu')  int? mtu,  List<String>? gateway, @JsonKey(name: 'dns')  List<String>? dns,  int? userLevel,  List<String>? autoSystemRoutingTable,  String? autoOutboundsInterface)?  $default,) {final _that = this;
switch (_that) {
case _TunConfig() when $default != null:
return $default(_that.name,_that.mtu,_that.gateway,_that.dns,_that.userLevel,_that.autoSystemRoutingTable,_that.autoOutboundsInterface);case _:
  return null;

}
}