33 lines
973 B
Rust
33 lines
973 B
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// macro f should not be able to inject a reference to 'n'.
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macro_rules! f { () => (n) }
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fn main() -> (){
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for n in 0..1 {
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println!("{}", f!()); //~ ERROR unresolved name `n`
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}
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if let Some(n) = None {
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println!("{}", f!()); //~ ERROR unresolved name `n`
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}
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if false {
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} else if let Some(n) = None {
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println!("{}", f!()); //~ ERROR unresolved name `n`
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}
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while let Some(n) = None {
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println!("{}", f!()); //~ ERROR unresolved name `n`
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}
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}
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