diff options
Diffstat (limited to 'tests/ui/const-generics/issues/issue-88119.rs')
-rw-r--r-- | tests/ui/const-generics/issues/issue-88119.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/const-generics/issues/issue-88119.rs b/tests/ui/const-generics/issues/issue-88119.rs new file mode 100644 index 000000000..647b0eea8 --- /dev/null +++ b/tests/ui/const-generics/issues/issue-88119.rs @@ -0,0 +1,36 @@ +// check-pass + +#![allow(incomplete_features)] +#![feature(const_trait_impl, generic_const_exprs)] + +#[const_trait] +trait ConstName { + const NAME_BYTES: &'static [u8]; +} + +impl const ConstName for u8 { + const NAME_BYTES: &'static [u8] = b"u8"; +} + +const fn name_len<T: ?Sized + ConstName>() -> usize { + T::NAME_BYTES.len() +} + +impl<T: ?Sized + ConstName> const ConstName for &T +where + [(); name_len::<T>()]:, +{ + const NAME_BYTES: &'static [u8] = b"&T"; +} + +impl<T: ?Sized + ConstName> const ConstName for &mut T +where + [(); name_len::<T>()]:, +{ + const NAME_BYTES: &'static [u8] = b"&mut T"; +} + +pub const ICE_1: &'static [u8] = <&&mut u8 as ConstName>::NAME_BYTES; +pub const ICE_2: &'static [u8] = <&mut &u8 as ConstName>::NAME_BYTES; + +fn main() {} |