mirror of
https://github.com/rust-lang/rust
synced 2024-09-06 01:11:17 +00:00
d68f2a6b71
```
error[E0382]: use of moved value: `t`
--> $DIR/use_of_moved_value_copy_suggestions.rs:7:9
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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
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help: if `T` implemented `Clone`, you could clone the value
--> $DIR/use_of_moved_value_copy_suggestions.rs:4:16
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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`
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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
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LL | let _a = FOO;
| ^^^ move occurs because `FOO` has type `Foo`, which does not implement the `Copy` trait
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note: if `Foo` implemented `Clone`, you could clone the value
--> $DIR/issue-17718-static-move.rs:1:1
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LL | struct Foo;
| ^^^^^^^^^^ consider implementing `Clone` for this type
...
LL | let _a = FOO;
| --- you could clone this value
help: consider borrowing here
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LL | let _a = &FOO;
| +
```
46 lines
1.4 KiB
Plaintext
46 lines
1.4 KiB
Plaintext
error[E0502]: cannot borrow `s` as immutable because it is also borrowed as mutable
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--> $DIR/borrowck-overloaded-call.rs:59:5
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LL | let sp = &mut s;
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| ------ mutable borrow occurs here
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LL | s(3);
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| ^ immutable borrow occurs here
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LL | use_mut(sp);
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| -- mutable borrow later used here
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error[E0596]: cannot borrow `s` as mutable, as it is not declared as mutable
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--> $DIR/borrowck-overloaded-call.rs:67:5
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LL | s(3);
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| ^ cannot borrow as mutable
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help: consider changing this to be mutable
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LL | let mut s = SFnMut {
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| +++
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error[E0382]: use of moved value: `s`
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--> $DIR/borrowck-overloaded-call.rs:75:5
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LL | let s = SFnOnce {
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| - move occurs because `s` has type `SFnOnce`, which does not implement the `Copy` trait
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...
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LL | s(" world".to_string());
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| - value moved here
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LL | s(" world".to_string());
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| ^ value used here after move
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note: if `SFnOnce` implemented `Clone`, you could clone the value
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--> $DIR/borrowck-overloaded-call.rs:41:1
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LL | struct SFnOnce {
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| ^^^^^^^^^^^^^^ consider implementing `Clone` for this type
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...
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LL | s(" world".to_string());
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| - you could clone this value
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error: aborting due to 3 previous errors
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Some errors have detailed explanations: E0382, E0502, E0596.
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For more information about an error, try `rustc --explain E0382`.
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