| // Copyright 2016 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. |
| |
| // aux-build:two_macros.rs |
| |
| #![allow(unused_macros)] |
| |
| macro_rules! foo { () => {} } |
| macro_rules! macro_one { () => {} } |
| #[macro_use(macro_two)] extern crate two_macros; |
| |
| macro_rules! m1 { () => { |
| macro_rules! foo { () => {} } //~ ERROR `foo` is already in scope |
| |
| #[macro_use] //~ ERROR `macro_two` is already in scope |
| extern crate two_macros as __; |
| }} |
| m1!(); |
| |
| foo!(); |
| |
| macro_rules! m2 { () => { |
| macro_rules! foo { () => {} } |
| foo!(); |
| }} |
| m2!(); |
| //^ Since `foo` is not used outside this expansion, it is not a shadowing error. |
| |
| fn main() {} |