when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. bool? statsInboundUplink,
    2. bool? statsInboundDownlink,
    3. bool? statsOutboundUplink,
    4. bool? statsOutboundDownlink,
    )
)

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( bool? statsInboundUplink,  bool? statsInboundDownlink,  bool? statsOutboundUplink,  bool? statsOutboundDownlink)  $default,) {final _that = this;
switch (_that) {
case _SystemPolicy():
return $default(_that.statsInboundUplink,_that.statsInboundDownlink,_that.statsOutboundUplink,_that.statsOutboundDownlink);case _:
  throw StateError('Unexpected subclass');

}
}