| // 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. |
| |
| // Regression test for issue #24622. The older associated types code |
| // was erroneously assuming that all projections outlived the current |
| // fn body, causing this (invalid) code to be accepted. |
| |
| pub trait Foo<'a> { |
| type Bar; |
| } |
| |
| impl<'a, T:'a> Foo<'a> for T { |
| type Bar = &'a T; |
| } |
| |
| fn denormalise<'a, T>(t: &'a T) -> <T as Foo<'a>>::Bar { |
| t |
| } |
| |
| pub fn free_and_use<T: for<'a> Foo<'a>, |
| F: for<'a> FnOnce(<T as Foo<'a>>::Bar)>(x: T, f: F) { |
| let y; |
| 'body: loop { // lifetime annotations added for clarity |
| 's: loop { y = denormalise(&x); break } |
| drop(x); //~ ERROR cannot move out of `x` because it is borrowed |
| return f(y); |
| } |
| } |
| |
| pub fn main() { |
| } |