| // 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. |
| |
| fn with_closure<F, A, B>(_: F) |
| where F: FnOnce(A, B) |
| { |
| } |
| |
| fn a() { |
| // Type of `y` is unconstrained. |
| with_closure(|x: u32, y| {}); //~ ERROR E0282 |
| } |
| |
| fn b() { |
| with_closure(|x: u32, y: u32| {}); // OK |
| } |
| |
| fn c() { |
| with_closure(|x: u32, y: u32| {}); // OK |
| } |
| |
| fn main() { } |
