rust/src/test/run-pass/macro-method-issue-4621.rs

// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

struct A;

macro_rules! make_thirteen_method {() => (fn thirteen(&self)->int {13})}
impl A { make_thirteen_method!(); }

fn main() {
    assert_eq!(A.thirteen(),13);
}