tests/incremental/issue-59524-layout-scalar-valid-range-is-not-unused.rs

   1 // We should not see the unused_attributes lint fire for
   2 // rustc_layout_scalar_valid_range_start, but with this bug we are
   3 // seeing it fire (on subsequent runs) if incremental compilation is
   4 // enabled.
   5
   6 // revisions: cfail1 cfail2
   7 // build-pass (FIXME(62277): could be check-pass?)
   8
   9 #![feature(rustc_attrs)]
  10 #![deny(unused_attributes)]
  11
  12 #[rustc_layout_scalar_valid_range_start(10)]
  13 #[rustc_layout_scalar_valid_range_end(30)]
  14 struct RestrictedRange(u32);
  15 const OKAY_RANGE: RestrictedRange = unsafe { RestrictedRange(20) };
  16
  17 fn main() {
  18     OKAY_RANGE.0;
  19 }