3 #![feature(custom_inner_attributes)]
4 #![warn(clippy::manual_split_once)]
5 #![allow(clippy::iter_skip_next, clippy::iter_nth_zero)]
7 extern crate itertools;
9 #[allow(unused_imports)]
10 use itertools::Itertools;
13 let _ = "key=value".splitn(2, '=').nth(2);
14 let _ = "key=value".split_once('=').unwrap().1;
15 let _ = "key=value".split_once('=').unwrap().1;
16 let (_, _) = "key=value".split_once('=').unwrap();
18 let s = String::from("key=value");
19 let _ = s.split_once('=').unwrap().1;
21 let s = Box::<str>::from("key=value");
22 let _ = s.split_once('=').unwrap().1;
25 let _ = s.split_once('=').unwrap().1;
27 fn _f(s: &str) -> Option<&str> {
28 let _ = s.split_once('=')?.1;
29 let _ = s.split_once('=')?.1;
30 let _ = s.rsplit_once('=')?.0;
31 let _ = s.rsplit_once('=')?.0;
35 // Don't lint, slices don't have `split_once`
36 let _ = [0, 1, 2].splitn(2, |&x| x == 1).nth(1).unwrap();
38 // `rsplitn` gives the results in the reverse order of `rsplit_once`
39 let _ = "key=value".rsplit_once('=').unwrap().0;
40 let (_, _) = "key=value".rsplit_once('=').map(|(x, y)| (y, x)).unwrap();
41 let _ = s.rsplit_once('=').map(|x| x.0);
45 #![clippy::msrv = "1.51"]
46 // `str::split_once` was stabilized in 1.52. Do not lint this
47 let _ = "key=value".splitn(2, '=').nth(1).unwrap();
51 #![clippy::msrv = "1.52"]
52 let _ = "key=value".split_once('=').unwrap().1;