File: fn-closure-mutable-capture.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (12 lines) | stat: -rw-r--r-- 348 bytes parent folder | download | duplicates (19) 
1
2
3
4
5
6
7
8
9
10
11
12
 
pub fn bar<F: Fn()>(_f: F) {} //~ NOTE change this to accept `FnMut` instead of `Fn`

pub fn foo() {
    let mut x = 0;
    bar(move || x = 1);
    //~^ ERROR cannot assign to `x`, as it is a captured variable in a `Fn` closure
    //~| NOTE cannot assign
    //~| NOTE expects `Fn` instead of `FnMut`
    //~| NOTE in this closure
}

fn main() {}