| // Copyright 2016 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. |
| |
| // Previously the closure's argument would be inferred to |
| // <S as ITrait<'a>>::Item, causing an error in MIR type |
| // checking |
| |
| trait ITrait<'a> {type Item;} |
| |
| struct S {} |
| |
| impl<'a> ITrait<'a> for S { type Item = &'a mut usize; } |
| |
| fn m<T, I, F>(_: F) |
| where I: for<'a> ITrait<'a>, |
| F: for<'a> FnMut(<I as ITrait<'a>>::Item) { } |
| |
| |
| fn main() { |
| m::<usize,S,_>(|x| { *x += 1; }); |
| } |
