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f20569fa XL |
1 | // run-rustfix |
2 | #![warn(clippy::reversed_empty_ranges)] | |
3 | ||
4 | const ANSWER: i32 = 42; | |
5 | ||
6 | fn main() { | |
7 | // These should be linted: | |
8 | ||
9 | (42..=21).for_each(|x| println!("{}", x)); | |
10 | let _ = (ANSWER..21).filter(|x| x % 2 == 0).take(10).collect::<Vec<_>>(); | |
11 | ||
12 | for _ in -21..=-42 {} | |
13 | for _ in 42u32..21u32 {} | |
14 | ||
15 | // These should be ignored as they are not empty ranges: | |
16 | ||
17 | (21..=42).for_each(|x| println!("{}", x)); | |
18 | (21..42).for_each(|x| println!("{}", x)); | |
19 | ||
20 | let arr = [1, 2, 3, 4, 5]; | |
21 | let _ = &arr[1..=3]; | |
22 | let _ = &arr[1..3]; | |
23 | ||
24 | for _ in 21..=42 {} | |
25 | for _ in 21..42 {} | |
26 | ||
27 | // This range is empty but should be ignored, see issue #5689 | |
28 | let _ = &arr[0..0]; | |
29 | } |