map<TResult extends Object?> method

  1. @optionalTypeArgs
TResult map<TResult extends Object?>({
  1. required TResult empty(
    1. SocketSendModelEmpty value
    ),
  2. required TResult sp(
    1. SpViewSendModel value
    ),
  3. required TResult ping(
    1. PingViewSendModel value
    ),
})

A switch-like method, using callbacks.

Callbacks receives the raw object, upcasted. It is equivalent to doing:

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

Implementation

@optionalTypeArgs
TResult map<TResult extends Object?>({
  required TResult Function(SocketSendModelEmpty value) empty,
  required TResult Function(SpViewSendModel value) sp,
  required TResult Function(PingViewSendModel value) ping,
}) {
  final _that = this;
  switch (_that) {
    case SocketSendModelEmpty():
      return empty(_that);
    case SpViewSendModel():
      return sp(_that);
    case PingViewSendModel():
      return ping(_that);
  }
}