1 files changed, 19 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-50781.rs b/tests/ui/issues/issue-50781.rs
new file mode 100644
index 00000000000..3c5e5a9f69a
--- /dev/null
+++ b/tests/ui/issues/issue-50781.rs
@@ -0,0 +1,19 @@
+#![deny(where_clauses_object_safety)]
+
+trait Trait {}
+
+trait X {
+    fn foo(&self) where Self: Trait; //~ ERROR the trait `X` cannot be made into an object
+    //~^ WARN this was previously accepted by the compiler but is being phased out
+}
+
+impl X for () {
+    fn foo(&self) {}
+}
+
+impl Trait for dyn X {}
+
+pub fn main() {
+    // Check that this does not segfault.
+    <dyn X as X>::foo(&());
+}