From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../ui/unboxed-closures/unboxed-closures-by-ref.rs | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs

(limited to 'src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs')

diff --git a/src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs b/src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs
new file mode 100644
index 000000000..cf4d4d3e1
--- /dev/null
+++ b/src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs
@@ -0,0 +1,24 @@
+// run-pass
+// Test by-ref capture of environment in unboxed closure types
+
+fn call_fn<F: Fn()>(f: F) {
+    f()
+}
+
+fn call_fn_mut<F: FnMut()>(mut f: F) {
+    f()
+}
+
+fn call_fn_once<F: FnOnce()>(f: F) {
+    f()
+}
+
+fn main() {
+    let mut x = 0_usize;
+    let y = 2_usize;
+
+    call_fn(|| assert_eq!(x, 0));
+    call_fn_mut(|| x += y);
+    call_fn_once(|| x += y);
+    assert_eq!(x, y * 2);
+}
-- 
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