Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 33 insertions, 0 deletions

diff --git a/src/tools/clippy/tests/ui/toplevel_ref_arg_non_rustfix.rs b/src/tools/clippy/tests/ui/toplevel_ref_arg_non_rustfix.rs
new file mode 100644
index 000000000..1a493fbce
--- /dev/null
+++ b/src/tools/clippy/tests/ui/toplevel_ref_arg_non_rustfix.rs
@@ -0,0 +1,33 @@
+// aux-build:macro_rules.rs
+
+#![warn(clippy::toplevel_ref_arg)]
+#![allow(unused)]
+
+#[macro_use]
+extern crate macro_rules;
+
+fn the_answer(ref mut x: u8) {
+    *x = 42;
+}
+
+macro_rules! gen_function {
+    () => {
+        fn fun_example(ref _x: usize) {}
+    };
+}
+
+fn main() {
+    let mut x = 0;
+    the_answer(x);
+
+    // lint in macro
+    #[allow(unused)]
+    {
+        gen_function!();
+    }
+
+    // do not lint in external macro
+    {
+        ref_arg_function!();
+    }
+}