| // 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. |
| |
| // compile-pass |
| |
| #![allow(warnings)] |
| |
| type Different<'a, 'b> = &'a mut (&'a (), &'b ()); |
| type Same<'a> = Different<'a, 'a>; |
| |
| fn with_closure_expecting_different<F>(_: F) |
| where F: for<'a, 'b> FnOnce(Different<'a, 'b>) |
| { |
| } |
| |
| fn with_closure_expecting_different_anon<F>(_: F) |
| where F: FnOnce(Different<'_, '_>) |
| { |
| } |
| |
| fn supplying_nothing_expecting_anon() { |
| with_closure_expecting_different_anon(|x: Different| { |
| }) |
| } |
| |
| fn supplying_nothing_expecting_named() { |
| with_closure_expecting_different(|x: Different| { |
| }) |
| } |
| |
| fn supplying_underscore_expecting_anon() { |
| with_closure_expecting_different_anon(|x: Different<'_, '_>| { |
| }) |
| } |
| |
| fn supplying_underscore_expecting_named() { |
| with_closure_expecting_different(|x: Different<'_, '_>| { |
| }) |
| } |
| |
| fn main() { } |