-#![warn(clippy::all)]
-#![allow(unused)]
+// run-rustfix
-fn the_answer(ref mut x: u8) {
- *x = 42;
-}
+#![warn(clippy::toplevel_ref_arg)]
fn main() {
- let mut x = 0;
- the_answer(x);
// Closures should not warn
let y = |ref x| println!("{:?}", x);
y(1u8);
- let ref x = 1;
+ let ref _x = 1;
- let ref y: (&_, u8) = (&1, 2);
+ let ref _y: (&_, u8) = (&1, 2);
- let ref z = 1 + 2;
+ let ref _z = 1 + 2;
- let ref mut z = 1 + 2;
+ let ref mut _z = 1 + 2;
let (ref x, _) = (1, 2); // ok, not top level
println!("The answer is {}.", x);
+ let ref _x = vec![1, 2, 3];
+
// Make sure that allowing the lint works
#[allow(clippy::toplevel_ref_arg)]
- let ref mut x = 1_234_543;
+ let ref mut _x = 1_234_543;
+
+ // ok
+ for ref _x in 0..10 {}
}