src/test/compile-fail/issue-46023.rs

   1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // revisions: ast mir
  12 //[mir]compile-flags: -Z emit-end-regions -Z borrowck=mir
  13
  14 fn main() {
  15     let x = 0;
  16
  17     (move || {
  18         x = 1;
  19         //[mir]~^ ERROR cannot assign to immutable item `x` [E0594]
  20         //[ast]~^^ ERROR cannot assign to captured outer variable in an `FnMut` closure [E0594]
  21     })()
  22 }