blob: b28c4378e33c642289cd054be4f1be856d9fbad2 (
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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// run-rustfix
#[warn(clippy::cmp_owned)]
#[allow(clippy::unnecessary_operation, clippy::no_effect, unused_must_use, clippy::eq_op)]
fn main() {
fn with_to_string(x: &str) {
x != "foo";
"foo" != x;
}
let x = "oh";
with_to_string(x);
x != "foo";
x != "foo";
42.to_string() == "42";
Foo == Foo;
"abc".chars().filter(|c| *c != 'X');
"abc".chars().filter(|c| *c != 'X');
}
struct Foo;
impl PartialEq for Foo {
// Allow this here, because it emits the lint
// without a suggestion. This is tested in
// `tests/ui/cmp_owned/without_suggestion.rs`
#[allow(clippy::cmp_owned)]
fn eq(&self, other: &Self) -> bool {
self.to_owned() == *other
}
}
impl ToOwned for Foo {
type Owned = Bar;
fn to_owned(&self) -> Bar {
Bar
}
}
#[derive(PartialEq, Eq)]
struct Bar;
impl PartialEq<Foo> for Bar {
fn eq(&self, _: &Foo) -> bool {
true
}
}
impl std::borrow::Borrow<Foo> for Bar {
fn borrow(&self) -> &Foo {
static FOO: Foo = Foo;
&FOO
}
}
#[derive(PartialEq, Eq)]
struct Baz;
impl ToOwned for Baz {
type Owned = Baz;
fn to_owned(&self) -> Baz {
Baz
}
}
|
