From af0c44cb2908989159322a4f2bf6ce046a7be5fc Mon Sep 17 00:00:00 2001
From: Yuki Okushi <huyuumi.dev@gmail.com>
Date: Mon, 9 Mar 2020 09:11:40 +0900
Subject: [PATCH] Add test for issue-54239

---
 .../issue-54239-private-type-triggers-lint.rs   | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/test/ui/async-await/issue-54239-private-type-triggers-lint.rs

diff --git a/src/test/ui/async-await/issue-54239-private-type-triggers-lint.rs b/src/test/ui/async-await/issue-54239-private-type-triggers-lint.rs
new file mode 100644
index 00000000000..16cf7ad52e4
--- /dev/null
+++ b/src/test/ui/async-await/issue-54239-private-type-triggers-lint.rs
@@ -0,0 +1,17 @@
+// Regression test for #54239, shouldn't trigger lint.
+// check-pass
+// edition:2018
+
+#![deny(missing_debug_implementations)]
+
+struct DontLookAtMe(i32);
+
+async fn secret() -> DontLookAtMe {
+    DontLookAtMe(41)
+}
+
+pub async fn looking() -> i32 { // Shouldn't trigger lint here.
+    secret().await.0
+}
+
+fn main() {}