when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. XrayInt32Range? rand,
    2. XrayInt32Range? randRange,
    3. String? type,
    4. Object? packet,
    5. XrayInt32Range? delay,
    )
)

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( XrayInt32Range? rand,  XrayInt32Range? randRange,  String? type,  Object? packet,  XrayInt32Range? delay)  $default,) {final _that = this;
switch (_that) {
case _NoiseItem():
return $default(_that.rand,_that.randRange,_that.type,_that.packet,_that.delay);case _:
  throw StateError('Unexpected subclass');

}
}