From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:03 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/extern/issue-13655.rs | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 tests/ui/extern/issue-13655.rs

(limited to 'tests/ui/extern/issue-13655.rs')

diff --git a/tests/ui/extern/issue-13655.rs b/tests/ui/extern/issue-13655.rs
new file mode 100644
index 000000000..6dd184799
--- /dev/null
+++ b/tests/ui/extern/issue-13655.rs
@@ -0,0 +1,32 @@
+// run-pass
+#![feature(fn_traits, unboxed_closures)]
+use std::ops::Fn;
+
+struct Foo<T>(T);
+
+impl<T: Copy> Fn<()> for Foo<T> {
+    extern "rust-call" fn call(&self, _: ()) -> T {
+      match *self {
+        Foo(t) => t
+      }
+    }
+}
+
+impl<T: Copy> FnMut<()> for Foo<T> {
+    extern "rust-call" fn call_mut(&mut self, _: ()) -> T {
+        self.call(())
+    }
+}
+
+impl<T: Copy> FnOnce<()> for Foo<T> {
+    type Output = T;
+
+    extern "rust-call" fn call_once(self, _: ()) -> T {
+        self.call(())
+    }
+}
+
+fn main() {
+  let t: u8 = 1;
+  println!("{}", Foo(t)());
+}
-- 
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