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1a4d82fc | 1 | // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
223e47cc LB |
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 | ||
1a4d82fc | 11 | // macro f should not be able to inject a reference to 'n'. |
970d7e83 | 12 | |
1a4d82fc | 13 | macro_rules! f { () => (n) } |
223e47cc | 14 | |
1a4d82fc | 15 | fn main() -> (){ |
85aaf69f | 16 | for n in 0..1 { |
1a4d82fc JJ |
17 | println!("{}", f!()); //~ ERROR unresolved name `n` |
18 | } | |
b039eaaf SL |
19 | |
20 | if let Some(n) = None { | |
21 | println!("{}", f!()); //~ ERROR unresolved name `n` | |
22 | } | |
23 | ||
24 | if false { | |
25 | } else if let Some(n) = None { | |
26 | println!("{}", f!()); //~ ERROR unresolved name `n` | |
27 | } | |
28 | ||
29 | while let Some(n) = None { | |
30 | println!("{}", f!()); //~ ERROR unresolved name `n` | |
31 | } | |
223e47cc | 32 | } |