src/test/ui/did_you_mean/issue-39544.rs

   1 pub enum X {
   2     Y
   3 }
   4
   5 pub struct Z {
   6     x: X
   7 }
   8
   9 fn main() {
  10     let z = Z { x: X::Y };
  11     let _ = &mut z.x; //~ ERROR cannot borrow
  12 }
  13
  14 impl Z {
  15     fn foo<'z>(&'z self) {
  16         let _ = &mut self.x; //~ ERROR cannot borrow
  17     }
  18
  19     fn foo1(&self, other: &Z) {
  20         let _ = &mut self.x; //~ ERROR cannot borrow
  21         let _ = &mut other.x; //~ ERROR cannot borrow
  22     }
  23
  24     fn foo2<'a>(&'a self, other: &Z) {
  25         let _ = &mut self.x; //~ ERROR cannot borrow
  26         let _ = &mut other.x; //~ ERROR cannot borrow
  27     }
  28
  29     fn foo3<'a>(self: &'a Self, other: &Z) {
  30         let _ = &mut self.x; //~ ERROR cannot borrow
  31         let _ = &mut other.x; //~ ERROR cannot borrow
  32     }
  33
  34     fn foo4(other: &Z) {
  35         let _ = &mut other.x; //~ ERROR cannot borrow
  36     }
  37
  38 }
  39
  40 pub fn with_arg(z: Z, w: &Z) {
  41     let _ = &mut z.x; //~ ERROR cannot borrow
  42     let _ = &mut w.x; //~ ERROR cannot borrow
  43 }
  44
  45 pub fn with_tuple() {
  46     let mut y = 0;
  47     let x = (&y,);
  48     *x.0 = 1;
  49     //~^ ERROR cannot assign to `*x.0`, which is behind a `&` reference
  50 }