1 files changed, 11 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-23336.rs b/tests/ui/issues/issue-23336.rs
new file mode 100644
index 000000000..cd71d7eed
--- /dev/null
+++ b/tests/ui/issues/issue-23336.rs
@@ -0,0 +1,11 @@
+// run-pass
+pub trait Data { fn doit(&self) {} }
+impl<T> Data for T {}
+pub trait UnaryLogic { type D: Data; }
+impl UnaryLogic for () { type D = i32; }
+
+pub fn crashes<T: UnaryLogic>(t: T::D) {
+    t.doit();
+}
+
+fn main() { crashes::<()>(0); }