rust/tests/ui/moves/move-fn-self-receiver.stderr
Esteban Küber d68f2a6b71 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;
   |              +
```
2024-04-24 22:21:15 +00:00

215 lines
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Plaintext

error[E0382]: use of moved value: `val.0`
--> $DIR/move-fn-self-receiver.rs:30:5
|
LL | val.0.into_iter().next();
| ----------- `val.0` moved due to this method call
LL | val.0;
| ^^^^^ value used here after move
|
note: `into_iter` takes ownership of the receiver `self`, which moves `val.0`
--> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL
= note: move occurs because `val.0` has type `Vec<bool>`, which does not implement the `Copy` trait
help: you can `clone` the value and consume it, but this might not be your desired behavior
|
LL | val.0.clone().into_iter().next();
| ++++++++
error[E0382]: use of moved value: `foo`
--> $DIR/move-fn-self-receiver.rs:34:5
|
LL | let foo = Foo;
| --- move occurs because `foo` has type `Foo`, which does not implement the `Copy` trait
LL | foo.use_self();
| ---------- `foo` moved due to this method call
LL | foo;
| ^^^ value used here after move
|
note: `Foo::use_self` takes ownership of the receiver `self`, which moves `foo`
--> $DIR/move-fn-self-receiver.rs:13:17
|
LL | fn use_self(self) {}
| ^^^^
error[E0382]: use of moved value: `second_foo`
--> $DIR/move-fn-self-receiver.rs:38:5
|
LL | let second_foo = Foo;
| ---------- move occurs because `second_foo` has type `Foo`, which does not implement the `Copy` trait
LL | second_foo.use_self();
| ---------- `second_foo` moved due to this method call
LL | second_foo;
| ^^^^^^^^^^ value used here after move
error[E0382]: use of moved value: `boxed_foo`
--> $DIR/move-fn-self-receiver.rs:42:5
|
LL | let boxed_foo = Box::new(Foo);
| --------- move occurs because `boxed_foo` has type `Box<Foo>`, which does not implement the `Copy` trait
LL | boxed_foo.use_box_self();
| -------------- `boxed_foo` moved due to this method call
LL | boxed_foo;
| ^^^^^^^^^ value used here after move
|
note: `Foo::use_box_self` takes ownership of the receiver `self`, which moves `boxed_foo`
--> $DIR/move-fn-self-receiver.rs:14:21
|
LL | fn use_box_self(self: Box<Self>) {}
| ^^^^
help: you could `clone` the value and consume it, if the `Foo: Clone` trait bound could be satisfied
|
LL | boxed_foo.clone().use_box_self();
| ++++++++
help: consider annotating `Foo` with `#[derive(Clone)]`
|
LL + #[derive(Clone)]
LL | struct Foo;
|
error[E0382]: use of moved value: `pin_box_foo`
--> $DIR/move-fn-self-receiver.rs:46:5
|
LL | let pin_box_foo = Box::pin(Foo);
| ----------- move occurs because `pin_box_foo` has type `Pin<Box<Foo>>`, which does not implement the `Copy` trait
LL | pin_box_foo.use_pin_box_self();
| ------------------ `pin_box_foo` moved due to this method call
LL | pin_box_foo;
| ^^^^^^^^^^^ value used here after move
|
note: `Foo::use_pin_box_self` takes ownership of the receiver `self`, which moves `pin_box_foo`
--> $DIR/move-fn-self-receiver.rs:15:25
|
LL | fn use_pin_box_self(self: Pin<Box<Self>>) {}
| ^^^^
help: you could `clone` the value and consume it, if the `Foo: Clone` trait bound could be satisfied
|
LL | pin_box_foo.clone().use_pin_box_self();
| ++++++++
help: consider annotating `Foo` with `#[derive(Clone)]`
|
LL + #[derive(Clone)]
LL | struct Foo;
|
error[E0505]: cannot move out of `mut_foo` because it is borrowed
--> $DIR/move-fn-self-receiver.rs:50:5
|
LL | let mut mut_foo = Foo;
| ----------- binding `mut_foo` declared here
LL | let ret = mut_foo.use_mut_self();
| ------- borrow of `mut_foo` occurs here
LL | mut_foo;
| ^^^^^^^ move out of `mut_foo` occurs here
LL | ret;
| --- borrow later used here
|
note: if `Foo` implemented `Clone`, you could clone the value
--> $DIR/move-fn-self-receiver.rs:5:1
|
LL | struct Foo;
| ^^^^^^^^^^ consider implementing `Clone` for this type
...
LL | let ret = mut_foo.use_mut_self();
| ------- you could clone this value
error[E0382]: use of moved value: `rc_foo`
--> $DIR/move-fn-self-receiver.rs:55:5
|
LL | let rc_foo = Rc::new(Foo);
| ------ move occurs because `rc_foo` has type `Rc<Foo>`, which does not implement the `Copy` trait
LL | rc_foo.use_rc_self();
| ------------- `rc_foo` moved due to this method call
LL | rc_foo;
| ^^^^^^ value used here after move
|
note: `Foo::use_rc_self` takes ownership of the receiver `self`, which moves `rc_foo`
--> $DIR/move-fn-self-receiver.rs:16:20
|
LL | fn use_rc_self(self: Rc<Self>) {}
| ^^^^
help: you can `clone` the value and consume it, but this might not be your desired behavior
|
LL | rc_foo.clone().use_rc_self();
| ++++++++
error[E0382]: use of moved value: `foo_add`
--> $DIR/move-fn-self-receiver.rs:59:5
|
LL | let foo_add = Foo;
| ------- move occurs because `foo_add` has type `Foo`, which does not implement the `Copy` trait
LL | foo_add + Foo;
| ------------- `foo_add` moved due to usage in operator
LL | foo_add;
| ^^^^^^^ value used here after move
|
note: if `Foo` implemented `Clone`, you could clone the value
--> $DIR/move-fn-self-receiver.rs:5:1
|
LL | struct Foo;
| ^^^^^^^^^^ consider implementing `Clone` for this type
...
LL | foo_add + Foo;
| ------- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/arith.rs:LL:COL
error[E0382]: use of moved value: `implicit_into_iter`
--> $DIR/move-fn-self-receiver.rs:63:5
|
LL | let implicit_into_iter = vec![true];
| ------------------ move occurs because `implicit_into_iter` has type `Vec<bool>`, which does not implement the `Copy` trait
LL | for _val in implicit_into_iter {}
| ------------------ `implicit_into_iter` moved due to this implicit call to `.into_iter()`
LL | implicit_into_iter;
| ^^^^^^^^^^^^^^^^^^ value used here after move
|
help: consider iterating over a slice of the `Vec<bool>`'s content to avoid moving into the `for` loop
|
LL | for _val in &implicit_into_iter {}
| +
error[E0382]: use of moved value: `explicit_into_iter`
--> $DIR/move-fn-self-receiver.rs:67:5
|
LL | let explicit_into_iter = vec![true];
| ------------------ move occurs because `explicit_into_iter` has type `Vec<bool>`, which does not implement the `Copy` trait
LL | for _val in explicit_into_iter.into_iter() {}
| ----------- `explicit_into_iter` moved due to this method call
LL | explicit_into_iter;
| ^^^^^^^^^^^^^^^^^^ value used here after move
|
help: you can `clone` the value and consume it, but this might not be your desired behavior
|
LL | for _val in explicit_into_iter.clone().into_iter() {}
| ++++++++
error[E0382]: use of moved value: `container`
--> $DIR/move-fn-self-receiver.rs:71:5
|
LL | let container = Container(vec![]);
| --------- move occurs because `container` has type `Container`, which does not implement the `Copy` trait
LL | for _val in container.custom_into_iter() {}
| ------------------ `container` moved due to this method call
LL | container;
| ^^^^^^^^^ value used here after move
|
note: `Container::custom_into_iter` takes ownership of the receiver `self`, which moves `container`
--> $DIR/move-fn-self-receiver.rs:23:25
|
LL | fn custom_into_iter(self) -> impl Iterator<Item = bool> {
| ^^^^
error[E0382]: use of moved value: `foo2`
--> $DIR/move-fn-self-receiver.rs:75:9
|
LL | let foo2 = Foo;
| ---- move occurs because `foo2` has type `Foo`, which does not implement the `Copy` trait
LL | loop {
| ---- inside of this loop
LL | foo2.use_self();
| ^^^^ ---------- `foo2` moved due to this method call, in previous iteration of loop
error: aborting due to 12 previous errors
Some errors have detailed explanations: E0382, E0505.
For more information about an error, try `rustc --explain E0382`.