1 files changed, 14 insertions, 0 deletions

diff --git a/src/test/ui/impl-trait/issues/issue-87340.rs b/src/test/ui/impl-trait/issues/issue-87340.rs
new file mode 100644
index 000000000..f0f6d2bb6
--- /dev/null
+++ b/src/test/ui/impl-trait/issues/issue-87340.rs
@@ -0,0 +1,14 @@
+#![feature(type_alias_impl_trait)]
+
+trait X {
+    type I;
+    fn f() -> Self::I;
+}
+
+impl<T> X for () {
+//~^ ERROR `T` is not constrained by the impl trait, self type, or predicates
+    type I = impl Sized;
+    fn f() -> Self::I {}
+}
+
+fn main() {}