src/test/ui/binding/match-ref-binding-mut.rs

   1 // run-pass
   2 #![allow(non_shorthand_field_patterns)]
   3
   4 struct Rec {
   5     f: isize
   6 }
   7
   8 fn destructure(x: &mut Rec) {
   9     match *x {
  10       Rec {f: ref mut f} => *f += 1
  11     }
  12 }
  13
  14 pub fn main() {
  15     let mut v = Rec {f: 22};
  16     destructure(&mut v);
  17     assert_eq!(v.f, 23);
  18 }