tests/ui/unsafe/ranged_ints_macro.rs

   1 // build-pass
   2 // revisions: mir thir
   3 // [thir]compile-flags: -Z thir-unsafeck
   4
   5 #![feature(rustc_attrs)]
   6
   7 macro_rules! apply {
   8     ($val:expr) => {
   9         #[rustc_layout_scalar_valid_range_start($val)]
  10         #[repr(transparent)]
  11         pub(crate) struct NonZero<T>(pub(crate) T);
  12     }
  13 }
  14
  15 apply!(1);
  16
  17 fn main() {
  18     let _x = unsafe { NonZero(1) };
  19 }