From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/extern/extern-types-manual-sync-send.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 tests/ui/extern/extern-types-manual-sync-send.rs

(limited to 'tests/ui/extern/extern-types-manual-sync-send.rs')

diff --git a/tests/ui/extern/extern-types-manual-sync-send.rs b/tests/ui/extern/extern-types-manual-sync-send.rs
new file mode 100644
index 000000000..87eb3f622
--- /dev/null
+++ b/tests/ui/extern/extern-types-manual-sync-send.rs
@@ -0,0 +1,19 @@
+// run-pass
+// Test that unsafe impl for Sync/Send can be provided for extern types.
+
+#![feature(extern_types)]
+
+extern "C" {
+    type A;
+}
+
+unsafe impl Sync for A {}
+unsafe impl Send for A {}
+
+fn assert_sync<T: ?Sized + Sync>() {}
+fn assert_send<T: ?Sized + Send>() {}
+
+fn main() {
+    assert_sync::<A>();
+    assert_send::<A>();
+}
-- 
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