1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/lazy-type-alias-impl-trait/recursion3.rs b/src/test/ui/lazy-type-alias-impl-trait/recursion3.rs
new file mode 100644
index 000000000..7f1cedae0
--- /dev/null
+++ b/src/test/ui/lazy-type-alias-impl-trait/recursion3.rs
@@ -0,0 +1,21 @@
+#![feature(type_alias_impl_trait)]
+
+type Foo = impl std::fmt::Debug;
+
+fn foo(b: bool) -> Foo {
+    if b {
+        return 42
+    }
+    let x: u32 = foo(false) + 42; //~ ERROR cannot add
+    99
+}
+
+fn bar(b: bool) -> impl std::fmt::Debug {
+    if b {
+        return 42
+    }
+    let x: u32 = bar(false) + 42; //~ ERROR cannot add
+    99
+}
+
+fn main() {}