1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/variance/variance-associated-consts.rs b/tests/ui/variance/variance-associated-consts.rs
new file mode 100644
index 000000000..da55bc962
--- /dev/null
+++ b/tests/ui/variance/variance-associated-consts.rs
@@ -0,0 +1,17 @@
+// Test that the variance computation considers types that
+// appear in const expressions to be invariant.
+
+#![feature(rustc_attrs)]
+#![allow(incomplete_features)]
+#![feature(generic_const_exprs)]
+
+trait Trait {
+    const Const: usize;
+}
+
+#[rustc_variance]
+struct Foo<T: Trait> { //~ ERROR [o]
+    field: [u8; <T as Trait>::Const]
+}
+
+fn main() { }