2020-10-06 16:37:23 +02:00
|
|
|
error[E0505]: cannot move out of `alloc` because it is borrowed
|
|
|
|
--> $DIR/leak-alloc.rs:26:10
|
|
|
|
|
|
2023-01-17 02:52:43 +00:00
|
|
|
LL | let alloc = Alloc {};
|
|
|
|
| ----- binding `alloc` declared here
|
2020-10-06 16:37:23 +02:00
|
|
|
LL | let boxed = Box::new_in(10, alloc.by_ref());
|
2023-06-22 20:30:23 +00:00
|
|
|
| ----- borrow of `alloc` occurs here
|
2020-10-06 16:37:23 +02:00
|
|
|
LL | let theref = Box::leak(boxed);
|
|
|
|
LL | drop(alloc);
|
|
|
|
| ^^^^^ move out of `alloc` occurs here
|
|
|
|
LL |
|
|
|
|
LL | use_value(*theref)
|
|
|
|
| ------- borrow later used here
|
2024-03-17 21:25:38 +00:00
|
|
|
|
|
|
|
|
note: if `Alloc` implemented `Clone`, you could clone the value
|
|
|
|
--> $DIR/leak-alloc.rs:8:1
|
|
|
|
|
|
|
|
|
LL | struct Alloc {}
|
Mention when type parameter could be `Clone`
```
error[E0382]: use of moved value: `t`
--> $DIR/use_of_moved_value_copy_suggestions.rs:7:9
|
LL | fn duplicate_t<T>(t: T) -> (T, T) {
| - move occurs because `t` has type `T`, which does not implement the `Copy` trait
...
LL | (t, t)
| - ^ value used here after move
| |
| value moved here
|
help: if `T` implemented `Clone`, you could clone the value
--> $DIR/use_of_moved_value_copy_suggestions.rs:4:16
|
LL | fn duplicate_t<T>(t: T) -> (T, T) {
| ^ consider constraining this type parameter with `Clone`
...
LL | (t, t)
| - you could clone this value
help: consider restricting type parameter `T`
|
LL | fn duplicate_t<T: Copy>(t: T) -> (T, T) {
| ++++++
```
The `help` is new. On ADTs, we also extend the output with span labels:
```
error[E0507]: cannot move out of static item `FOO`
--> $DIR/issue-17718-static-move.rs:6:14
|
LL | let _a = FOO;
| ^^^ move occurs because `FOO` has type `Foo`, which does not implement the `Copy` trait
|
note: if `Foo` implemented `Clone`, you could clone the value
--> $DIR/issue-17718-static-move.rs:1:1
|
LL | struct Foo;
| ^^^^^^^^^^ consider implementing `Clone` for this type
...
LL | let _a = FOO;
| --- you could clone this value
help: consider borrowing here
|
LL | let _a = &FOO;
| +
```
2024-04-18 22:18:19 +00:00
|
|
|
| ^^^^^^^^^^^^ consider implementing `Clone` for this type
|
|
|
|
...
|
|
|
|
LL | let boxed = Box::new_in(10, alloc.by_ref());
|
|
|
|
| ----- you could clone this value
|
2020-10-06 16:37:23 +02:00
|
|
|
|
2023-11-21 15:44:16 +00:00
|
|
|
error: aborting due to 1 previous error
|
2020-10-06 16:37:23 +02:00
|
|
|
|
|
|
|
For more information about this error, try `rustc --explain E0505`.
|