blob: ec082c73b44c08fa534779647f395260864d3266 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
#![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
#![allow(clippy::if_same_then_else, clippy::branches_sharing_code)]
fn test_complex_conditions() {
let x: Result<(), ()> = Ok(());
let y: Result<(), ()> = Ok(());
if x.is_ok() && y.is_err() {
x.unwrap(); // unnecessary
x.unwrap_err(); // will panic
y.unwrap(); // will panic
y.unwrap_err(); // unnecessary
} else {
// not statically determinable whether any of the following will always succeed or always fail:
x.unwrap();
x.unwrap_err();
y.unwrap();
y.unwrap_err();
}
if x.is_ok() || y.is_ok() {
// not statically determinable whether any of the following will always succeed or always fail:
x.unwrap();
y.unwrap();
} else {
x.unwrap(); // will panic
x.unwrap_err(); // unnecessary
y.unwrap(); // will panic
y.unwrap_err(); // unnecessary
}
let z: Result<(), ()> = Ok(());
if x.is_ok() && !(y.is_ok() || z.is_err()) {
x.unwrap(); // unnecessary
x.unwrap_err(); // will panic
y.unwrap(); // will panic
y.unwrap_err(); // unnecessary
z.unwrap(); // unnecessary
z.unwrap_err(); // will panic
}
if x.is_ok() || !(y.is_ok() && z.is_err()) {
// not statically determinable whether any of the following will always succeed or always fail:
x.unwrap();
y.unwrap();
z.unwrap();
} else {
x.unwrap(); // will panic
x.unwrap_err(); // unnecessary
y.unwrap(); // unnecessary
y.unwrap_err(); // will panic
z.unwrap(); // will panic
z.unwrap_err(); // unnecessary
}
}
fn main() {}
|
