blob: b3cb6dd06142be65bca5fe37c3d00e0a9706edd2 (
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
|
error[E0308]: mismatched types
--> $DIR/mut-ref-reassignment.rs:2:11
|
LL | fn suggestion(opt: &mut Option<String>) {
| ------------------- expected due to this parameter type
LL | opt = None;
| ^^^^ expected mutable reference, found enum `Option`
|
= note: expected mutable reference `&mut Option<String>`
found enum `Option<_>`
help: consider dereferencing here to assign to the mutably borrowed value
|
LL | *opt = None;
| +
error[E0308]: mismatched types
--> $DIR/mut-ref-reassignment.rs:6:11
|
LL | fn no_suggestion(opt: &mut Result<String, ()>) {
| ----------------------- expected due to this parameter type
LL | opt = None
| ^^^^ expected mutable reference, found enum `Option`
|
= note: expected mutable reference `&mut Result<String, ()>`
found enum `Option<_>`
error[E0308]: mismatched types
--> $DIR/mut-ref-reassignment.rs:10:11
|
LL | fn suggestion2(opt: &mut Option<String>) {
| ------------------- expected due to this parameter type
LL | opt = Some(String::new())
| ^^^^^^^^^^^^^^^^^^^ expected mutable reference, found enum `Option`
|
= note: expected mutable reference `&mut Option<String>`
found enum `Option<String>`
help: consider dereferencing here to assign to the mutably borrowed value
|
LL | *opt = Some(String::new())
| +
error[E0308]: mismatched types
--> $DIR/mut-ref-reassignment.rs:14:11
|
LL | fn no_suggestion2(opt: &mut Option<String>) {
| ------------------- expected due to this parameter type
LL | opt = Some(42)
| ^^^^^^^^ expected mutable reference, found enum `Option`
|
= note: expected mutable reference `&mut Option<String>`
found enum `Option<{integer}>`
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0308`.
|
