Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/ui/unboxed-closures/unboxed-closures-infer-fnonce.rs b/tests/ui/unboxed-closures/unboxed-closures-infer-fnonce.rs
new file mode 100644
index 000000000..3c8ea7d85
--- /dev/null
+++ b/tests/ui/unboxed-closures/unboxed-closures-infer-fnonce.rs
@@ -0,0 +1,25 @@
+// run-pass
+// Test that we are able to infer a suitable kind for this closure
+// that is just called (`FnOnce`).
+
+use std::mem;
+
+struct DropMe<'a>(&'a mut i32);
+
+impl<'a> Drop for DropMe<'a> {
+    fn drop(&mut self) {
+        *self.0 += 1;
+    }
+}
+
+fn main() {
+    let mut counter = 0;
+
+    {
+        let drop_me = DropMe(&mut counter);
+        let tick = || mem::drop(drop_me);
+        tick();
+    }
+
+    assert_eq!(counter, 1);
+}