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// run-rustfix
// The output for humans should just highlight the whole span without showing
// the suggested replacement, but we also want to test that suggested
// replacement only removes one set of parentheses, rather than naïvely
// stripping away any starting or ending parenthesis characters—hence this
// test of the JSON error format.
#![feature(custom_inner_attributes)]
#![rustfmt::skip]
#![deny(clippy::unused_unit)]
#![allow(dead_code)]
#![allow(clippy::from_over_into)]
struct Unitter;
impl Unitter {
#[allow(clippy::no_effect)]
pub fn get_unit<F: Fn(), G>(&self, f: F, _g: G)
where G: Fn() {
let _y: &dyn Fn() = &f;
(); // this should not lint, as it's not in return type position
}
}
impl Into<()> for Unitter {
#[rustfmt::skip]
fn into(self) {
}
}
trait Trait {
fn redundant<F: FnOnce(), G, H>(&self, _f: F, _g: G, _h: H)
where
G: FnMut(),
H: Fn();
}
impl Trait for Unitter {
fn redundant<F: FnOnce(), G, H>(&self, _f: F, _g: G, _h: H)
where
G: FnMut(),
H: Fn() {}
}
fn return_unit() { }
#[allow(clippy::needless_return)]
#[allow(clippy::never_loop)]
#[allow(clippy::unit_cmp)]
fn main() {
let u = Unitter;
assert_eq!(u.get_unit(|| {}, return_unit), u.into());
return_unit();
loop {
break;
}
return;
}
// https://github.com/rust-lang/rust-clippy/issues/4076
fn foo() {
macro_rules! foo {
(recv($r:expr) -> $res:pat => $body:expr) => {
$body
}
}
foo! {
recv(rx) -> _x => ()
}
}
#[rustfmt::skip]
fn test(){}
#[rustfmt::skip]
fn test2(){}
#[rustfmt::skip]
fn test3(){}
fn macro_expr() {
macro_rules! e {
() => (());
}
e!()
}
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