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
|
#![warn(clippy::double_parens)]
#![allow(dead_code, clippy::eq_op)]
#![feature(custom_inner_attributes)]
#![rustfmt::skip]
fn dummy_fn<T>(_: T) {}
struct DummyStruct;
impl DummyStruct {
fn dummy_method<T>(self, _: T) {}
}
fn simple_double_parens() -> i32 {
((0))
//~^ ERROR: consider removing unnecessary double parentheses
//~| NOTE: `-D clippy::double-parens` implied by `-D warnings`
}
fn fn_double_parens() {
dummy_fn((0));
//~^ ERROR: consider removing unnecessary double parentheses
}
fn method_double_parens(x: DummyStruct) {
x.dummy_method((0));
//~^ ERROR: consider removing unnecessary double parentheses
}
fn tuple_double_parens() -> (i32, i32) {
((1, 2))
//~^ ERROR: consider removing unnecessary double parentheses
}
fn unit_double_parens() {
(())
//~^ ERROR: consider removing unnecessary double parentheses
}
fn fn_tuple_ok() {
dummy_fn((1, 2));
}
fn method_tuple_ok(x: DummyStruct) {
x.dummy_method((1, 2));
}
fn fn_unit_ok() {
dummy_fn(());
}
fn method_unit_ok(x: DummyStruct) {
x.dummy_method(());
}
// Issue #3206
fn inside_macro() {
assert_eq!((1, 2), (1, 2), "Error");
assert_eq!(((1, 2)), (1, 2), "Error");
//~^ ERROR: consider removing unnecessary double parentheses
}
fn main() {}
|
