1 #![allow(clippy::uninlined_format_args)]
2
3 #[allow(unused_assignments)]
4 #[warn(clippy::misrefactored_assign_op, clippy::assign_op_pattern)]
main()5 fn main() {
6 let mut a = 5;
7 a += a + 1;
8 a += 1 + a;
9 a -= a - 1;
10 a *= a * 99;
11 a *= 42 * a;
12 a /= a / 2;
13 a %= a % 5;
14 a &= a & 1;
15 a *= a * a;
16 a = a * a * a;
17 a = a * 42 * a;
18 a = a * 2 + a;
19 a -= 1 - a;
20 a /= 5 / a;
21 a %= 42 % a;
22 a <<= 6 << a;
23 }
24
25 // check that we don't lint on op assign impls, because that's just the way to impl them
26
27 use std::ops::{Mul, MulAssign};
28
29 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
30 pub struct Wrap(i64);
31
32 impl Mul<i64> for Wrap {
33 type Output = Self;
34
mul(self, rhs: i64) -> Self35 fn mul(self, rhs: i64) -> Self {
36 Wrap(self.0 * rhs)
37 }
38 }
39
40 impl MulAssign<i64> for Wrap {
mul_assign(&mut self, rhs: i64)41 fn mul_assign(&mut self, rhs: i64) {
42 *self = *self * rhs
43 }
44 }
45
cow_add_assign()46 fn cow_add_assign() {
47 use std::borrow::Cow;
48 let mut buf = Cow::Owned(String::from("bar"));
49 let cows = Cow::Borrowed("foo");
50
51 // this can be linted
52 buf = buf + cows.clone();
53
54 // this should not as cow<str> Add is not commutative
55 buf = cows + buf;
56 println!("{}", buf);
57 }
58