1 files changed, 42 insertions, 0 deletions
diff --git a/src/test/ui/object-safety/object-safety-mentions-Self.rs b/src/test/ui/object-safety/object-safety-mentions-Self.rs
new file mode 100644
index 000000000..412d16ff3
--- /dev/null
+++ b/src/test/ui/object-safety/object-safety-mentions-Self.rs
@@ -0,0 +1,42 @@
+// Check that we correctly prevent users from making trait objects
+// form traits that make use of `Self` in an argument or return
+// position, unless `where Self : Sized` is present..
+//
+// revisions: curr object_safe_for_dispatch
+
+#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))]
+
+
+trait Bar {
+    fn bar(&self, x: &Self);
+}
+
+trait Baz {
+    fn baz(&self) -> Self;
+}
+
+trait Quux {
+    fn quux(&self, s: &Self) -> Self where Self : Sized;
+}
+
+fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
+    //[curr]~^ ERROR E0038
+    t
+    //[object_safe_for_dispatch]~^ ERROR E0038
+}
+
+fn make_baz<T:Baz>(t: &T) -> &dyn Baz {
+    //[curr]~^ ERROR E0038
+    t
+    //[object_safe_for_dispatch]~^ ERROR E0038
+}
+
+fn make_quux<T:Quux>(t: &T) -> &dyn Quux {
+    t
+}
+
+fn make_quux_explicit<T:Quux>(t: &T) -> &dyn Quux {
+    t as &dyn Quux
+}
+
+fn main() {}