whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. XrayInt32Range? maxConcurrency,
    2. XrayInt32Range? maxConnections,
    3. XrayInt32Range? cMaxReuseTimes,
    4. XrayInt32Range? hMaxRequestTimes,
    5. XrayInt32Range? hMaxReusableSecs,
    6. int? hKeepAlivePeriod,
    )?
)

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( XrayInt32Range? maxConcurrency,  XrayInt32Range? maxConnections,  XrayInt32Range? cMaxReuseTimes,  XrayInt32Range? hMaxRequestTimes,  XrayInt32Range? hMaxReusableSecs,  int? hKeepAlivePeriod)?  $default,) {final _that = this;
switch (_that) {
case _XmuxConfig() when $default != null:
return $default(_that.maxConcurrency,_that.maxConnections,_that.cMaxReuseTimes,_that.hMaxRequestTimes,_that.hMaxReusableSecs,_that.hKeepAlivePeriod);case _:
  return null;

}
}