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// 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!();
}
}
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