| // 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. |
| |
| // Attempt to change the mutability as well as unsizing. |
| |
| struct Fat<T: ?Sized> { |
| ptr: T |
| } |
| |
| struct Foo; |
| trait Bar {} |
| impl Bar for Foo {} |
| |
| pub fn main() { |
| // With a vec of ints. |
| let f1 = Fat { ptr: [1, 2, 3] }; |
| let f2: &Fat<[isize; 3]> = &f1; |
| let f3: &mut Fat<[isize]> = f2; //~ ERROR mismatched types |
| |
| // With a trait. |
| let f1 = Fat { ptr: Foo }; |
| let f2: &Fat<Foo> = &f1; |
| let f3: &mut Fat<Bar> = f2; //~ ERROR mismatched types |
| } |
