| // Copyright 2012 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 Cell is considered invariant with respect to its |
| // type. |
| |
| #![feature(rustc_attrs)] |
| |
| use std::cell::Cell; |
| |
| // For better or worse, associated types are invariant, and hence we |
| // get an invariant result for `'a`. |
| #[rustc_variance] |
| struct Foo<'a> { //~ ERROR regions=[[o];[];[]] |
| x: Box<Fn(i32) -> &'a i32 + 'static> |
| } |
| |
| fn main() { |
| } |
