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// run-rustfix
#![warn(clippy::match_single_binding)]
#![allow(unused_variables)]
#![allow(clippy::uninlined_format_args)]
fn main() {
// Lint (additional curly braces needed, see #6572)
struct AppendIter<I>
where
I: Iterator,
{
inner: Option<(I, <I as Iterator>::Item)>,
}
#[allow(dead_code)]
fn size_hint<I: Iterator>(iter: &AppendIter<I>) -> (usize, Option<usize>) {
match &iter.inner {
Some((iter, _item)) => match iter.size_hint() {
(min, max) => (min.saturating_add(1), max.and_then(|max| max.checked_add(1))),
},
None => (0, Some(0)),
}
}
// Lint (no additional curly braces needed)
let opt = Some((5, 2));
let get_tup = || -> (i32, i32) { (1, 2) };
match opt {
#[rustfmt::skip]
Some((first, _second)) => {
match get_tup() {
(a, b) => println!("a {:?} and b {:?}", a, b),
}
},
None => println!("nothing"),
}
fn side_effects() {}
// Lint (scrutinee has side effects)
// issue #7094
match side_effects() {
_ => println!("Side effects"),
}
// Lint (scrutinee has side effects)
// issue #7094
let x = 1;
match match x {
0 => 1,
_ => 2,
} {
_ => println!("Single branch"),
}
}
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