| // Copyright 2017 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. |
| |
| macro_rules! m { |
| ($pat: pat) => { |
| trait Tr { |
| fn trait_method($pat: u8); |
| } |
| |
| type A = fn($pat: u8); |
| |
| extern { |
| fn foreign_fn($pat: u8); |
| } |
| } |
| } |
| |
| mod good_pat { |
| m!(good_pat); // OK |
| } |
| |
| mod bad_pat { |
| m!((bad, pat)); |
| //~^ ERROR patterns aren't allowed in function pointer types |
| //~| ERROR patterns aren't allowed in foreign function declarations |
| //~| ERROR patterns aren't allowed in methods without bodies |
| } |
| |
| fn main() {} |