1 files changed, 8 insertions, 0 deletions
diff --git a/tests/ui/type-alias-impl-trait/privacy.rs b/tests/ui/type-alias-impl-trait/privacy.rs
new file mode 100644
index 000000000..aa092f6f8
--- /dev/null
+++ b/tests/ui/type-alias-impl-trait/privacy.rs
@@ -0,0 +1,8 @@
+#![feature(type_alias_impl_trait)]
+
+type Foo = (impl Sized, u8);
+pub fn foo() -> Foo {
+    //~^ ERROR private type alias `Foo` in public interface
+    (42, 42)
+}
+fn main() {}