1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/issue-63279.rs b/src/test/ui/type-alias-impl-trait/issue-63279.rs
new file mode 100644
index 000000000..97332e16d
--- /dev/null
+++ b/src/test/ui/type-alias-impl-trait/issue-63279.rs
@@ -0,0 +1,15 @@
+// compile-flags: -Zsave-analysis
+
+#![feature(type_alias_impl_trait)]
+
+type Closure = impl FnOnce();
+
+fn c() -> Closure {
+    //~^ ERROR: expected a `FnOnce<()>` closure, found `()`
+    || -> Closure { || () }
+    //~^ ERROR: mismatched types
+    //~| ERROR: mismatched types
+    //~| ERROR: expected a `FnOnce<()>` closure, found `()`
+}
+
+fn main() {}