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f20569fa XL |
1 | // run-rustfix |
2 | #![allow(dead_code)] | |
3 | #![warn(clippy::manual_filter_map)] | |
4 | #![allow(clippy::redundant_closure)] // FIXME suggestion may have redundant closure | |
5 | ||
6 | fn main() { | |
7 | // is_some(), unwrap() | |
8 | let _ = (0..).filter_map(|a| to_opt(a)); | |
9 | ||
10 | // ref pattern, expect() | |
11 | let _ = (0..).filter_map(|a| to_opt(a)); | |
12 | ||
13 | // is_ok(), unwrap_or() | |
14 | let _ = (0..).filter_map(|a| to_res(a).ok()); | |
15 | } | |
16 | ||
17 | fn no_lint() { | |
18 | // no shared code | |
19 | let _ = (0..).filter(|n| *n > 1).map(|n| n + 1); | |
20 | ||
21 | // very close but different since filter() provides a reference | |
22 | let _ = (0..).filter(|n| to_opt(n).is_some()).map(|a| to_opt(a).unwrap()); | |
23 | ||
24 | // similar but different | |
25 | let _ = (0..).filter(|n| to_opt(n).is_some()).map(|n| to_res(n).unwrap()); | |
26 | let _ = (0..) | |
27 | .filter(|n| to_opt(n).map(|n| n + 1).is_some()) | |
28 | .map(|a| to_opt(a).unwrap()); | |
29 | } | |
30 | ||
31 | fn to_opt<T>(_: T) -> Option<T> { | |
32 | unimplemented!() | |
33 | } | |
34 | ||
35 | fn to_res<T>(_: T) -> Result<T, ()> { | |
36 | unimplemented!() | |
37 | } |