| // Copyright 2015 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 that a covariant struct permits the lifetime of a reference to |
| // be shortened. |
| |
| #![allow(dead_code)] |
| #![feature(rustc_attrs)] |
| |
| struct SomeStruct<T>(T); |
| |
| fn foo<'min,'max>(v: SomeStruct<&'max ()>) |
| -> SomeStruct<&'min ()> |
| where 'max : 'min |
| { |
| v |
| } |
| |
| #[rustc_error] fn main() { } //~ ERROR compilation successful |
