| // 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. |
| |
| // Similar to regions-ret-borrowed.rs, but using a named lifetime. At |
| // some point regions-ret-borrowed reported an error but this file did |
| // not, due to special hardcoding around the anonymous region. |
| |
| fn with<R, F>(f: F) -> R where F: for<'a> FnOnce(&'a isize) -> R { |
| f(&3) |
| } |
| |
| fn return_it<'a>() -> &'a isize { |
| with(|o| o) |
| //~^ ERROR cannot infer |
| } |
| |
| fn main() { |
| let x = return_it(); |
| println!("foo={}", *x); |
| } |
