mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 18:53:39 +00:00
d68f2a6b71
```
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;
| +
```
29 lines
1.1 KiB
Plaintext
29 lines
1.1 KiB
Plaintext
error[E0505]: cannot move out of `fancy_num` because it is borrowed
|
|
--> $DIR/E0504.rs:9:13
|
|
|
|
|
LL | let fancy_num = FancyNum { num: 5 };
|
|
| --------- binding `fancy_num` declared here
|
|
LL | let fancy_ref = &fancy_num;
|
|
| ---------- borrow of `fancy_num` occurs here
|
|
LL |
|
|
LL | let x = move || {
|
|
| ^^^^^^^ move out of `fancy_num` occurs here
|
|
LL | println!("child function: {}", fancy_num.num);
|
|
| ------------- move occurs due to use in closure
|
|
...
|
|
LL | println!("main function: {}", fancy_ref.num);
|
|
| ------------- borrow later used here
|
|
|
|
|
note: if `FancyNum` implemented `Clone`, you could clone the value
|
|
--> $DIR/E0504.rs:1:1
|
|
|
|
|
LL | struct FancyNum {
|
|
| ^^^^^^^^^^^^^^^ consider implementing `Clone` for this type
|
|
...
|
|
LL | let fancy_ref = &fancy_num;
|
|
| ---------- you could clone this value
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0505`.
|