| // Copyright 2014 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. |
| |
| // pretty-expanded FIXME #23616 |
| |
| #![deny(unused_mut)] |
| |
| // Test that mutating a mutable upvar in a capture-by-value unboxed |
| // closure does not ice (issue #18238) and marks the upvar as used |
| // mutably so we do not get a spurious warning about it not needing to |
| // be declared mutable (issue #18336 and #18769) |
| |
| fn set(x: &mut usize) { *x = 42; } |
| |
| fn main() { |
| { |
| let mut x = 0_usize; |
| move || x += 1; |
| } |
| { |
| let mut x = 0_usize; |
| move || x += 1; |
| } |
| { |
| let mut x = 0_usize; |
| move || set(&mut x); |
| } |
| { |
| let mut x = 0_usize; |
| move || set(&mut x); |
| } |
| } |