| // 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. |
| |
| // We only want to assert that this doesn't ICE, we don't particularly care |
| // about whether it nor it fails to compile. |
| |
| // error-pattern: |
| |
| macro_rules! foo{ |
| () => {{ |
| macro_rules! bar{() => (())} |
| 1 |
| }} |
| } |
| |
| pub fn main() { |
| foo!(); |
| |
| assert!({one! two()}); |
| //~^ ERROR macros that expand to items must either be surrounded with braces or followed by a |
| |
| // regardless of whether nested macro_rules works, the following should at |
| // least throw a conventional error. |
| assert!({one! two}); |
| //~^ ERROR expected |
| } |
