src/test/ui/async-await/no-non-guaranteed-initialization.rs

   1 // compile-fail
   2 // edition:2018
   3 // compile-flags: --crate-type lib
   4
   5 async fn no_non_guaranteed_initialization(x: usize) -> usize {
   6     let y;
   7     if x > 5 {
   8         y = echo(10).await;
   9     }
  10     y
  11     //~^ use of possibly uninitialized variable: `y`
  12 }
  13
  14 async fn echo(x: usize) -> usize { x + 1 }