blob: 73906121c402efba40d6f13c9cc696d7f669c628 (
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
|
#![allow(unused_variables)]
fn takes_an_immutable_reference(a: &i32) {}
fn takes_a_mutable_reference(a: &mut i32) {}
struct MyStruct;
impl MyStruct {
fn takes_an_immutable_reference(&self, a: &i32) {}
fn takes_a_mutable_reference(&self, a: &mut i32) {}
}
#[warn(clippy::unnecessary_mut_passed)]
fn main() {
// Functions
takes_an_immutable_reference(&mut 42);
let as_ptr: fn(&i32) = takes_an_immutable_reference;
as_ptr(&mut 42);
// Methods
let my_struct = MyStruct;
my_struct.takes_an_immutable_reference(&mut 42);
// No error
// Functions
takes_an_immutable_reference(&42);
let as_ptr: fn(&i32) = takes_an_immutable_reference;
as_ptr(&42);
takes_a_mutable_reference(&mut 42);
let as_ptr: fn(&mut i32) = takes_a_mutable_reference;
as_ptr(&mut 42);
let a = &mut 42;
takes_an_immutable_reference(a);
// Methods
my_struct.takes_an_immutable_reference(&42);
my_struct.takes_a_mutable_reference(&mut 42);
my_struct.takes_an_immutable_reference(a);
}
|
