File: borrowck-borrow-immut-deref-of-box-as-mut.rs

package info (click to toggle)
rustc 1.87.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 925,564 kB
  • sloc: xml: 158,127; python: 36,039; javascript: 19,761; sh: 19,737; cpp: 18,981; ansic: 13,133; asm: 4,376; makefile: 710; perl: 29; lisp: 28; ruby: 19; sql: 11
file content (14 lines) | stat: -rw-r--r-- 207 bytes parent folder | download | duplicates (22) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
struct A;

impl A {
    fn foo(&mut self) {
    }
}



pub fn main() {
    let a: Box<_> = Box::new(A);
    a.foo();
    //~^ ERROR cannot borrow `*a` as mutable, as `a` is not declared as mutable [E0596]
}