whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String? access,
    2. String? error,
    3. LogLevel? loglevel,
    4. bool? dnsLog,
    5. String? maskAddress,
    )?
)

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( String? access,  String? error,  LogLevel? loglevel,  bool? dnsLog,  String? maskAddress)?  $default,) {final _that = this;
switch (_that) {
case _LogConfig() when $default != null:
return $default(_that.access,_that.error,_that.loglevel,_that.dnsLog,_that.maskAddress);case _:
  return null;

}
}