src/test/ui/nll/closure-access-spans.rs

   1 // check that accesses due to a closure capture give a special note
   2
   3 fn closure_imm_capture_conflict(mut x: i32) {
   4     let r = &mut x;
   5     || x; //~ ERROR
   6     r.use_mut();
   7 }
   8
   9 fn closure_mut_capture_conflict(mut x: i32) {
  10     let r = &mut x;
  11     || x = 2; //~ ERROR
  12     r.use_mut();
  13 }
  14
  15 fn closure_unique_capture_conflict(mut x: &mut i32) {
  16     let r = &mut x;
  17     || *x = 2; //~ ERROR
  18     r.use_mut();
  19 }
  20
  21 fn closure_copy_capture_conflict(mut x: i32) {
  22     let r = &mut x;
  23     move || x; //~ ERROR
  24     r.use_ref();
  25 }
  26
  27 fn closure_move_capture_conflict(mut x: String) {
  28     let r = &x;
  29     || x; //~ ERROR
  30     r.use_ref();
  31 }
  32
  33 fn closure_imm_capture_moved(mut x: String) {
  34     let r = x;
  35     || x.len(); //~ ERROR
  36 }
  37
  38 fn closure_mut_capture_moved(mut x: String) {
  39     let r = x;
  40     || x = String::new(); //~ ERROR
  41 }
  42
  43 fn closure_unique_capture_moved(x: &mut String) {
  44     let r = x;
  45     || *x = String::new(); //~ ERROR
  46 }
  47
  48 fn closure_move_capture_moved(x: &mut String) {
  49     let r = x;
  50     || x; //~ ERROR
  51 }
  52
  53 fn main() {}
  54
  55 trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { }  }
  56 impl<T> Fake for T { }