From 5ac46d7bd88cf992d108d14913b599903140ce9d Mon Sep 17 00:00:00 2001
From: Santiago Pastorino <spastorino@gmail.com>
Date: Fri, 27 Aug 2021 18:42:28 -0300
Subject: [PATCH] Add auto trait leakage TAIT test

---
 .../auto-trait-leakage.rs                      | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 src/test/ui/type-alias-impl-trait/auto-trait-leakage.rs

diff --git a/src/test/ui/type-alias-impl-trait/auto-trait-leakage.rs b/src/test/ui/type-alias-impl-trait/auto-trait-leakage.rs
new file mode 100644
index 000000000000..a1584581e6c4
--- /dev/null
+++ b/src/test/ui/type-alias-impl-trait/auto-trait-leakage.rs
@@ -0,0 +1,18 @@
+// check-pass
+
+#![feature(type_alias_impl_trait)]
+#![allow(dead_code)]
+
+mod m {
+    type Foo = impl std::fmt::Debug;
+
+    pub fn foo() -> Foo {
+        22_u32
+    }
+}
+
+fn is_send<T: Send>(_: T) {}
+
+fn main() {
+    is_send(m::foo());
+}