whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. int id,
    2. String pairingTopic,
    3. ConnectionMetadata requester,
    4. int expiryTimestamp,
    5. CacaoRequestPayload authPayload,
    6. VerifyContext verifyContext,
    7. TransportType transportType,
    )?
)

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( int id,  String pairingTopic,  ConnectionMetadata requester,  int expiryTimestamp,  CacaoRequestPayload authPayload,  VerifyContext verifyContext,  TransportType transportType)?  $default,) {final _that = this;
switch (_that) {
case _PendingSessionAuthRequest() when $default != null:
return $default(_that.id,_that.pairingTopic,_that.requester,_that.expiryTimestamp,_that.authPayload,_that.verifyContext,_that.transportType);case _:
  return null;

}
}