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7453a54e | 1 | // Copyright 2016 The Rust Project Developers. See the COPYRIGHT |
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2 | // file at the top-level directory of this distribution and at |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
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11 | #![feature(rustc_attrs)] |
12 | #![allow(warnings)] | |
1a4d82fc | 13 | |
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14 | macro_rules! foo { () => { |
15 | let x = 1; | |
16 | macro_rules! bar { () => {x} } | |
17 | let _ = bar!(); | |
18 | }} | |
223e47cc | 19 | |
c30ab7b3 | 20 | macro_rules! m { // test issue #31856 |
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21 | ($n:ident) => ( |
22 | let a = 1; | |
23 | let $n = a; | |
24 | ) | |
25 | } | |
26 | ||
27 | macro_rules! baz { | |
28 | ($i:ident) => { | |
29 | let mut $i = 2; | |
30 | $i = $i + 1; | |
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31 | } |
32 | } | |
33 | ||
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34 | #[rustc_error] |
35 | fn main() { //~ ERROR compilation successful | |
36 | foo! {}; | |
37 | bar! {}; | |
38 | ||
39 | let mut a = true; | |
40 | baz!(a); | |
223e47cc | 41 | } |