whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. int? mtu,
    2. int? tti,
    3. @JsonKey.new(name: 'uplinkCapacity') int? upCap,
    4. @JsonKey.new(name: 'downlinkCapacity') int? downCap,
    5. int? cwndMultiplier,
    6. int? maxSendingWindow,
    7. Map<String, dynamic>? header,
    8. String? seed,
    )?
)

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? mtu,  int? tti, @JsonKey(name: 'uplinkCapacity')  int? upCap, @JsonKey(name: 'downlinkCapacity')  int? downCap,  int? cwndMultiplier,  int? maxSendingWindow,  Map<String, dynamic>? header,  String? seed)?  $default,) {final _that = this;
switch (_that) {
case _KCPConfig() when $default != null:
return $default(_that.mtu,_that.tti,_that.upCap,_that.downCap,_that.cwndMultiplier,_that.maxSendingWindow,_that.header,_that.seed);case _:
  return null;

}
}