when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. @JsonKey.new(name: 'auth') SocksAuthMethod? authMethod,
    2. List<SocksAccount>? users,
    3. List<SocksAccount>? accounts,
    4. bool? udp,
    5. @JsonKey.new(name: 'ip') XrayAddress? host,
    6. int? userLevel,
    )
)

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs
TResult when<TResult extends Object?>(
  TResult Function(
          @JsonKey(name: 'auth') SocksAuthMethod? authMethod,
          List<SocksAccount>? users,
          List<SocksAccount>? accounts,
          bool? udp,
          @JsonKey(name: 'ip') XrayAddress? host,
          int? userLevel)
      $default,
) {
  final _that = this;
  switch (_that) {
    case _SocksServerConfig():
      return $default(_that.authMethod, _that.users, _that.accounts,
          _that.udp, _that.host, _that.userLevel);
    case _:
      throw StateError('Unexpected subclass');
  }
}