1 files changed, 25 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-45801.rs b/tests/ui/issues/issue-45801.rs
new file mode 100644
index 00000000000..780baa89667
--- /dev/null
+++ b/tests/ui/issues/issue-45801.rs
@@ -0,0 +1,25 @@
+struct Params;
+
+pub trait Plugin<E: ?Sized> {
+    type Error;
+}
+
+pub trait Pluggable {
+    fn get_ref<P: Plugin<Self>>(&mut self) -> Option<P::Error> {
+        None
+    }
+}
+
+struct Foo;
+impl Plugin<Foo> for Params {
+    type Error = ();
+}
+
+impl<T: Copy> Pluggable for T {}
+
+fn handle(req: &mut i32) {
+    req.get_ref::<Params>();
+    //~^ ERROR the trait bound `Params: Plugin<i32>` is not satisfied
+}
+
+fn main() {}