1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/rfc-2093-infer-outlives/privacy.rs b/src/test/ui/rfc-2093-infer-outlives/privacy.rs
new file mode 100644
index 000000000..180f5ac6c
--- /dev/null
+++ b/src/test/ui/rfc-2093-infer-outlives/privacy.rs
@@ -0,0 +1,20 @@
+// Test that we do not get a privacy error here.  Initially, we did,
+// because we inferred an outlives predciate of `<Foo<'a> as
+// Private>::Out: 'a`, but the private trait is -- well -- private,
+// and hence it was not something that a pub trait could refer to.
+//
+// run-pass
+
+#![allow(dead_code)]
+
+pub struct Foo<'a> {
+    field: Option<&'a <Foo<'a> as Private>::Out>
+}
+
+trait Private {
+    type Out: ?Sized;
+}
+
+impl<T: ?Sized> Private for T { type Out = Self; }
+
+fn main() { }