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;
| +
```
116 lines
3.9 KiB
Plaintext
116 lines
3.9 KiB
Plaintext
error[E0382]: use of moved value: `value`
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:29:22
|
|
|
|
|
LL | let value = NonCopy{};
|
|
| ----- move occurs because `value` has type `NonCopy`, which does not implement the `Copy` trait
|
|
LL |
|
|
LL | let _used = value;
|
|
| ----- value moved here
|
|
...
|
|
LL | let _used2 = value;
|
|
| ^^^^^ value used here after move
|
|
|
|
|
note: if `NonCopy` implemented `Clone`, you could clone the value
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:5:1
|
|
|
|
|
LL | struct NonCopy;
|
|
| ^^^^^^^^^^^^^^ consider implementing `Clone` for this type
|
|
...
|
|
LL | let _used = value;
|
|
| ----- you could clone this value
|
|
|
|
error[E0382]: use of moved value: `value`
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:42:26
|
|
|
|
|
LL | let value = NonCopy{};
|
|
| ----- move occurs because `value` has type `NonCopy`, which does not implement the `Copy` trait
|
|
LL |
|
|
LL | loop {
|
|
| ---- inside of this loop
|
|
LL | let _used = value;
|
|
| ----- value moved here
|
|
...
|
|
LL | let _used2 = value;
|
|
| ^^^^^ value used here after move
|
|
|
|
|
note: if `NonCopy` implemented `Clone`, you could clone the value
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:5:1
|
|
|
|
|
LL | struct NonCopy;
|
|
| ^^^^^^^^^^^^^^ consider implementing `Clone` for this type
|
|
...
|
|
LL | let _used = value;
|
|
| ----- you could clone this value
|
|
|
|
error[E0382]: use of moved value: `value`
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:52:21
|
|
|
|
|
LL | let value = NonCopy{};
|
|
| ----- move occurs because `value` has type `NonCopy`, which does not implement the `Copy` trait
|
|
LL |
|
|
LL | loop {
|
|
| ---- inside of this loop
|
|
LL | let _used = value;
|
|
| ^^^^^ value moved here, in previous iteration of loop
|
|
|
|
|
note: if `NonCopy` implemented `Clone`, you could clone the value
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:5:1
|
|
|
|
|
LL | struct NonCopy;
|
|
| ^^^^^^^^^^^^^^ consider implementing `Clone` for this type
|
|
...
|
|
LL | let _used = value;
|
|
| ----- you could clone this value
|
|
|
|
error[E0382]: use of moved value: `value`
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:64:22
|
|
|
|
|
LL | let mut value = NonCopy{};
|
|
| --------- move occurs because `value` has type `NonCopy`, which does not implement the `Copy` trait
|
|
...
|
|
LL | loop {
|
|
| ---- inside of this loop
|
|
LL | let _used2 = value;
|
|
| ^^^^^ value moved here, in previous iteration of loop
|
|
|
|
|
note: if `NonCopy` implemented `Clone`, you could clone the value
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:5:1
|
|
|
|
|
LL | struct NonCopy;
|
|
| ^^^^^^^^^^^^^^ consider implementing `Clone` for this type
|
|
...
|
|
LL | let _used2 = value;
|
|
| ----- you could clone this value
|
|
|
|
error[E0381]: used binding `value` isn't initialized
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:73:21
|
|
|
|
|
LL | let value: NonCopy;
|
|
| ----- binding declared here but left uninitialized
|
|
LL | let _used = value;
|
|
| ^^^^^ `value` used here but it isn't initialized
|
|
|
|
|
help: consider assigning a value
|
|
|
|
|
LL | let value: NonCopy = /* value */;
|
|
| +++++++++++++
|
|
|
|
error[E0381]: used binding `value` isn't initialized
|
|
--> $DIR/issue-72649-uninit-in-loop.rs:81:21
|
|
|
|
|
LL | let mut value: NonCopy;
|
|
| --------- binding declared here but left uninitialized
|
|
LL | loop {
|
|
LL | let _used = value;
|
|
| ^^^^^ `value` used here but it isn't initialized
|
|
|
|
|
help: consider assigning a value
|
|
|
|
|
LL | let mut value: NonCopy = /* value */;
|
|
| +++++++++++++
|
|
|
|
error: aborting due to 6 previous errors
|
|
|
|
Some errors have detailed explanations: E0381, E0382.
|
|
For more information about an error, try `rustc --explain E0381`.
|