rust/src/test/run-pass/let-var-hygiene.rs
2013-10-06 14:39:25 -07:00

19 lines
658 B
Rust

// Copyright 2012 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.
#[feature(macro_rules)];
// shouldn't affect evaluation of $ex:
macro_rules! bad_macro (($ex:expr) => ({let _x = 9; $ex}))
pub fn main() {
let _x = 8;
assert_eq!(bad_macro!(_x),8)
}