gistfile1.txt

def set(reg: Reg, literal: byte): Code = {
  return new Code() {
    // implementation
  }
}

sample codosome factory

    static public Code set(final Reg reg, final byte literal) {
        return new Code () {
            public void run(State state) {
                reg.value = literal;
                state.ticks += 1;
            }
            public void emit() {
                emit("ldi", reg, literal);
            }
        };
    }