src/test/ui/let-else/let-else-allow-in-expr.rs

   1 #![deny(unused_variables)]
   2
   3 fn main() {
   4     let Some(_): Option<u32> = ({
   5         let x = 1; //~ ERROR unused variable: `x`
   6         Some(1)
   7     }) else {
   8         return;
   9     };
  10
  11     #[allow(unused_variables)]
  12     let Some(_): Option<u32> = ({
  13         let x = 1;
  14         Some(1)
  15     }) else {
  16         return;
  17     };
  18
  19     let Some(_): Option<u32> = ({
  20         #[allow(unused_variables)]
  21         let x = 1;
  22         Some(1)
  23     }) else {
  24         return;
  25     };
  26
  27     let x = 1; //~ ERROR unused variable: `x`
  28 }