whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. List<VLessUser>? users,
    2. List<VLessUser>? clients,
    3. String decryption,
    4. List<VLessInboundFallback>? fallbacks,
    5. String? flow,
    6. List<int>? testseed,
    )?
)

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(
          List<VLessUser>? users,
          List<VLessUser>? clients,
          String decryption,
          List<VLessInboundFallback>? fallbacks,
          String? flow,
          List<int>? testseed)?
      $default,
) {
  final _that = this;
  switch (_that) {
    case _VLessInboundConfig() when $default != null:
      return $default(_that.users, _that.clients, _that.decryption,
          _that.fallbacks, _that.flow, _that.testseed);
    case _:
      return null;
  }
}