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-rw-r--r--src/test/ui/const-generics/issues/issue-88119.rs35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/issues/issue-88119.rs b/src/test/ui/const-generics/issues/issue-88119.rs
new file mode 100644
index 000000000..70dfa7f70
--- /dev/null
+++ b/src/test/ui/const-generics/issues/issue-88119.rs
@@ -0,0 +1,35 @@
+// check-pass
+
+#![allow(incomplete_features)]
+#![feature(const_trait_impl, generic_const_exprs)]
+
+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() {}