| // 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. |
| |
| use std::cell::Cell; |
| |
| struct Foo<'a> { |
| x: Cell<Option<&'a isize>>, |
| } |
| |
| fn use_<'short,'long>(c: Foo<'short>, |
| s: &'short isize, |
| l: &'long isize, |
| _where:Option<&'short &'long ()>) { |
| let _: Foo<'long> = c; //~ ERROR mismatched types |
| } |
| |
| fn main() { |
| } |
