mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-02 03:33:59 +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;
| +
```
45 lines
1.5 KiB
Plaintext
45 lines
1.5 KiB
Plaintext
error[E0507]: cannot move out of `self.b`, as `self` is a captured variable in an `Fn` closure
|
|
--> $DIR/issue-103624.rs:16:13
|
|
|
|
|
LL | async fn foo(&self) {
|
|
| ----- captured outer variable
|
|
LL | let bar = self.b.bar().await;
|
|
LL | spawn_blocking(move || {
|
|
| ------- captured by this `Fn` closure
|
|
LL |
|
|
LL | self.b;
|
|
| ^^^^^^ move occurs because `self.b` has type `StructB`, which does not implement the `Copy` trait
|
|
|
|
|
note: if `StructB` implemented `Clone`, you could clone the value
|
|
--> $DIR/issue-103624.rs:23:1
|
|
|
|
|
LL | self.b;
|
|
| ------ you could clone this value
|
|
...
|
|
LL | struct StructB {}
|
|
| ^^^^^^^^^^^^^^ consider implementing `Clone` for this type
|
|
|
|
error[E0521]: borrowed data escapes outside of method
|
|
--> $DIR/issue-103624.rs:14:9
|
|
|
|
|
LL | async fn foo(&self) {
|
|
| -----
|
|
| |
|
|
| `self` is a reference that is only valid in the method body
|
|
| let's call the lifetime of this reference `'1`
|
|
LL | let bar = self.b.bar().await;
|
|
LL | / spawn_blocking(move || {
|
|
LL | |
|
|
LL | | self.b;
|
|
LL | |
|
|
LL | | })
|
|
| | ^
|
|
| | |
|
|
| |__________`self` escapes the method body here
|
|
| argument requires that `'1` must outlive `'static`
|
|
|
|
error: aborting due to 2 previous errors
|
|
|
|
Some errors have detailed explanations: E0507, E0521.
|
|
For more information about an error, try `rustc --explain E0507`.
|