!7

p {
  print(aFunction(false));
  print(aFunction(true));
}

sS aFunction(bool hibernate) {
  if (hibernate)
    throw HibernatingTheThread(func -> S {
      print("Sleeping...");
      sleep(1000);
      ret "finished";
    });
  else
    ret "hello";
}

sclass HibernatingTheThread extends RuntimeException {
  F0 continuation;

  *() {}
  *(F0 *continuation) {}
}