]>
Commit | Line | Data |
---|---|---|
f20569fa XL |
1 | // run-rustfix |
2 | #![warn(clippy::reversed_empty_ranges)] | |
3 | ||
4 | fn main() { | |
5 | const MAX_LEN: usize = 42; | |
6 | ||
7 | for i in (0..10).rev() { | |
8 | println!("{}", i); | |
9 | } | |
10 | ||
11 | for i in (0..=10).rev() { | |
12 | println!("{}", i); | |
13 | } | |
14 | ||
15 | for i in (0..MAX_LEN).rev() { | |
16 | println!("{}", i); | |
17 | } | |
18 | ||
19 | for i in 5..=5 { | |
20 | // not an error, this is the range with only one element “5” | |
21 | println!("{}", i); | |
22 | } | |
23 | ||
24 | for i in 0..10 { | |
25 | // not an error, the start index is less than the end index | |
26 | println!("{}", i); | |
27 | } | |
28 | ||
29 | for i in -10..0 { | |
30 | // not an error | |
31 | println!("{}", i); | |
32 | } | |
33 | ||
34 | for i in (0..10).rev().map(|x| x * 2) { | |
35 | println!("{}", i); | |
36 | } | |
37 | ||
38 | // testing that the empty range lint folds constants | |
39 | for i in (5 + 4..10).rev() { | |
40 | println!("{}", i); | |
41 | } | |
42 | ||
43 | for i in ((3 - 1)..(5 + 2)).rev() { | |
44 | println!("{}", i); | |
45 | } | |
46 | ||
47 | for i in (2 * 2)..(2 * 3) { | |
48 | // no error, 4..6 is fine | |
49 | println!("{}", i); | |
50 | } | |
51 | ||
52 | let x = 42; | |
53 | for i in x..10 { | |
54 | // no error, not constant-foldable | |
55 | println!("{}", i); | |
56 | } | |
57 | } |