| // 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! borrow { |
| ($x:expr) => { &$x } //~ ERROR mismatched types |
| } |
| |
| fn foo(_: String) {} |
| |
| fn foo2(s: &String) { |
| foo(s); |
| //~^ ERROR mismatched types |
| } |
| |
| fn foo3(_: u32) {} |
| fn foo4(u: &u32) { |
| foo3(u); |
| //~^ ERROR mismatched types |
| } |
| |
| fn main() { |
| let s = String::new(); |
| let r_s = &s; |
| foo2(r_s); |
| foo(&"aaa".to_owned()); |
| //~^ ERROR mismatched types |
| foo(&mut "aaa".to_owned()); |
| //~^ ERROR mismatched types |
| foo3(borrow!(0)); |
| foo4(&0); |
| assert_eq!(3i32, &3i32); |
| //~^ ERROR mismatched types |
| } |