tests/ui/nll/dont-print-desugared.rs

   1 // Test that we don't show variables with from for loop desugaring
   2
   3 fn for_loop(s: &[i32]) {
   4     for &ref mut x in s {}
   5     //~^ ERROR cannot borrow data in a `&` reference as mutable [E0596]
   6 }
   7
   8 struct D<'a>(&'a ());
   9
  10 impl Drop for D<'_> {
  11     fn drop(&mut self) {}
  12 }
  13
  14 fn for_loop_dropck(v: Vec<D<'static>>) {
  15     for ref mut d in v {
  16         let y = ();
  17         *d = D(&y); //~ ERROR `y` does not live long enough
  18     }
  19 }
  20
  21 fn main() {}