| // 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. |
| |
| // Test unboxed closure sugar used in object types. |
| |
| #![allow(dead_code)] |
| |
| struct Foo<T,U> { |
| t: T, u: U |
| } |
| |
| trait Getter<A,R> { |
| fn get(&self, arg: A) -> R; |
| } |
| |
| struct Identity; |
| impl<X> Getter<X,X> for Identity { |
| fn get(&self, arg: X) -> X { |
| arg |
| } |
| } |
| |
| fn main() { |
| let x: &Getter<(i32,), (i32,)> = &Identity; |
| let (y,) = x.get((22,)); |
| assert_eq!(y, 22); |
| } |