| // 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. |
| |
| #![allow(dead_code)] |
| |
| // Test that even when `T` is only used in contravariant position, it |
| // is treated as invariant. |
| |
| trait Get<T> : 'static { |
| fn get(&self, t: T); |
| } |
| |
| fn get_min_from_max<'min, 'max>(v: Box<Get<&'max i32>>) |
| -> Box<Get<&'min i32>> |
| where 'max : 'min |
| { |
| v //~ ERROR mismatched types |
| } |
| |
| fn get_max_from_min<'min, 'max, G>(v: Box<Get<&'min i32>>) |
| -> Box<Get<&'max i32>> |
| where 'max : 'min |
| { |
| // Previously OK: |
| v //~ ERROR mismatched types |
| } |
| |
| fn main() { } |
