src/test/ui/unsafe/unsafe-around-compiler-generated-unsafe.rs

   1 // edition:2018
   2 // revisions: mir thir
   3 // [thir]compile-flags: -Z thir-unsafeck
   4
   5 #![deny(unused_unsafe)]
   6
   7 fn main() {
   8     let _ = async {
   9         unsafe { async {}.await; } //~ ERROR unnecessary `unsafe`
  10     };
  11
  12     // `format_args!` expands with a compiler-generated unsafe block
  13     unsafe { println!("foo"); } //~ ERROR unnecessary `unsafe`
  14 }