1 files changed, 28 insertions, 0 deletions

diff --git a/src/test/ui/impl-trait/issues/issue-88236-2.rs b/src/test/ui/impl-trait/issues/issue-88236-2.rs
new file mode 100644
index 000000000..fde8a6704
--- /dev/null
+++ b/src/test/ui/impl-trait/issues/issue-88236-2.rs
@@ -0,0 +1,28 @@
+// this used to cause stack overflows
+
+trait Hrtb<'a> {
+    type Assoc;
+}
+
+impl<'a> Hrtb<'a> for () {
+    type Assoc = ();
+}
+
+impl<'a> Hrtb<'a> for &'a () {
+    type Assoc = ();
+}
+
+fn make_impl() -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {}
+//~^ ERROR higher kinded lifetime bounds on nested opaque types are not supported yet
+
+fn make_weird_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
+    //~^ ERROR higher kinded lifetime bounds on nested opaque types are not supported yet
+    &()
+}
+
+fn make_bad_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
+    //~^ ERROR higher kinded lifetime bounds on nested opaque types are not supported yet
+    x
+}
+
+fn main() {}