2 files changed, 15 insertions, 0 deletions
diff --git a/ui-tests/src/bin/qualified_self_opt.rs b/ui-tests/src/bin/qualified_self_opt.rs
new file mode 100644
index 0000000..5de8b71
--- /dev/null
+++ b/ui-tests/src/bin/qualified_self_opt.rs
@@ -0,0 +1,10 @@
+trait Foo {
+    type X: Into<String>;
+}
+
+#[dynamize::dynamize]
+trait Bar: Foo {
+    fn test(&self) -> Option<<Self as Foo>::X>;
+}
+
+fn main() {}
diff --git a/ui-tests/src/bin/qualified_self_opt.stderr b/ui-tests/src/bin/qualified_self_opt.stderr
new file mode 100644
index 0000000..e032be5
--- /dev/null
+++ b/ui-tests/src/bin/qualified_self_opt.stderr
@@ -0,0 +1,5 @@
+error: dynamize does not support associated types of a qualified Self
+ --> src/bin/qualified_self_opt.rs:7:31
+  |
+7 |     fn test(&self) -> Option<<Self as Foo>::X>;
+  |                               ^^^^