1 // run-rustfix
2
3 #![feature(custom_inner_attributes)]
4 #![warn(clippy::manual_split_once)]
5 #![allow(clippy::iter_skip_next, clippy::iter_nth_zero)]
6
7 extern crate itertools;
8
9 #[allow(unused_imports)]
10 use itertools::Itertools;
11
main()12 fn main() {
13 let _ = "key=value".splitn(2, '=').next();
14 let _ = "key=value".splitn(2, '=').nth(2);
15 let _ = "key=value".splitn(2, '=').next().unwrap();
16 let _ = "key=value".splitn(2, '=').nth(0).unwrap();
17 let _ = "key=value".splitn(2, '=').nth(1).unwrap();
18 let _ = "key=value".splitn(2, '=').skip(1).next().unwrap();
19 let (_, _) = "key=value".splitn(2, '=').next_tuple().unwrap();
20
21 let s = String::from("key=value");
22 let _ = s.splitn(2, '=').next().unwrap();
23
24 let s = Box::<str>::from("key=value");
25 let _ = s.splitn(2, '=').nth(0).unwrap();
26
27 let s = &"key=value";
28 let _ = s.splitn(2, '=').skip(0).next().unwrap();
29
30 fn _f(s: &str) -> Option<&str> {
31 let _ = s.splitn(2, "key=value").next()?;
32 let _ = s.splitn(2, "key=value").nth(1)?;
33 let _ = s.splitn(2, "key=value").skip(1).next()?;
34 None
35 }
36
37 // Don't lint, slices don't have `split_once`
38 let _ = [0, 1, 2].splitn(2, |&x| x == 1).nth(1).unwrap();
39
40 // `rsplitn` gives the results in the reverse order of `rsplit_once`
41 let _ = "key=value".rsplitn(2, '=').next().unwrap();
42 let _ = "key=value".rsplitn(2, '=').nth(1).unwrap();
43 let _ = "key=value".rsplitn(2, '=').nth(0);
44 let (_, _) = "key=value".rsplitn(2, '=').next_tuple().unwrap();
45 }
46
_msrv_1_51()47 fn _msrv_1_51() {
48 #![clippy::msrv = "1.51"]
49 // `str::split_once` was stabilized in 1.16. Do not lint this
50 let _ = "key=value".splitn(2, '=').nth(1).unwrap();
51 }
52
_msrv_1_52()53 fn _msrv_1_52() {
54 #![clippy::msrv = "1.52"]
55 let _ = "key=value".splitn(2, '=').nth(1).unwrap();
56 }
57