rust/tests/ui/binop/binop-consume-args.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

474 lines
18 KiB
Plaintext

error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:7:10
|
LL | fn add<A: Add<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs + rhs;
| --------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:5:8
|
LL | fn add<A: Add<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs + rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/arith.rs:LL:COL
help: consider further restricting this bound
|
LL | fn add<A: Add<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:8:10
|
LL | fn add<A: Add<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs + rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:5:30
|
LL | fn add<A: Add<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs + rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn add<A: Add<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:13:10
|
LL | fn sub<A: Sub<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs - rhs;
| --------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:11:8
|
LL | fn sub<A: Sub<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs - rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/arith.rs:LL:COL
help: consider further restricting this bound
|
LL | fn sub<A: Sub<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:14:10
|
LL | fn sub<A: Sub<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs - rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:11:30
|
LL | fn sub<A: Sub<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs - rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn sub<A: Sub<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:19:10
|
LL | fn mul<A: Mul<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs * rhs;
| --------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:17:8
|
LL | fn mul<A: Mul<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs * rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/arith.rs:LL:COL
help: consider further restricting this bound
|
LL | fn mul<A: Mul<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:20:10
|
LL | fn mul<A: Mul<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs * rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:17:30
|
LL | fn mul<A: Mul<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs * rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn mul<A: Mul<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:25:10
|
LL | fn div<A: Div<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs / rhs;
| --------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:23:8
|
LL | fn div<A: Div<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs / rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/arith.rs:LL:COL
help: consider further restricting this bound
|
LL | fn div<A: Div<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:26:10
|
LL | fn div<A: Div<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs / rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:23:30
|
LL | fn div<A: Div<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs / rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn div<A: Div<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:31:10
|
LL | fn rem<A: Rem<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs % rhs;
| --------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:29:8
|
LL | fn rem<A: Rem<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs % rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/arith.rs:LL:COL
help: consider further restricting this bound
|
LL | fn rem<A: Rem<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:32:10
|
LL | fn rem<A: Rem<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs % rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:29:30
|
LL | fn rem<A: Rem<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs % rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn rem<A: Rem<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:37:10
|
LL | fn bitand<A: BitAnd<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs & rhs;
| --------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:35:11
|
LL | fn bitand<A: BitAnd<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs & rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/bit.rs:LL:COL
help: consider further restricting this bound
|
LL | fn bitand<A: BitAnd<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:38:10
|
LL | fn bitand<A: BitAnd<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs & rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:35:36
|
LL | fn bitand<A: BitAnd<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs & rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn bitand<A: BitAnd<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:43:10
|
LL | fn bitor<A: BitOr<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs | rhs;
| --------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:41:10
|
LL | fn bitor<A: BitOr<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs | rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/bit.rs:LL:COL
help: consider further restricting this bound
|
LL | fn bitor<A: BitOr<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:44:10
|
LL | fn bitor<A: BitOr<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs | rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:41:34
|
LL | fn bitor<A: BitOr<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs | rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn bitor<A: BitOr<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:49:10
|
LL | fn bitxor<A: BitXor<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs ^ rhs;
| --------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:47:11
|
LL | fn bitxor<A: BitXor<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs ^ rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/bit.rs:LL:COL
help: consider further restricting this bound
|
LL | fn bitxor<A: BitXor<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:50:10
|
LL | fn bitxor<A: BitXor<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs ^ rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:47:36
|
LL | fn bitxor<A: BitXor<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs ^ rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn bitxor<A: BitXor<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:55:10
|
LL | fn shl<A: Shl<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs << rhs;
| ---------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:53:8
|
LL | fn shl<A: Shl<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs << rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/bit.rs:LL:COL
help: consider further restricting this bound
|
LL | fn shl<A: Shl<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:56:10
|
LL | fn shl<A: Shl<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs << rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:53:30
|
LL | fn shl<A: Shl<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs << rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn shl<A: Shl<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `lhs`
--> $DIR/binop-consume-args.rs:61:10
|
LL | fn shr<A: Shr<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `lhs` has type `A`, which does not implement the `Copy` trait
LL | lhs >> rhs;
| ---------- `lhs` moved due to usage in operator
LL | drop(lhs);
| ^^^ value used here after move
|
help: if `A` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:59:8
|
LL | fn shr<A: Shr<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs >> rhs;
| --- you could clone this value
note: calling this operator moves the left-hand side
--> $SRC_DIR/core/src/ops/bit.rs:LL:COL
help: consider further restricting this bound
|
LL | fn shr<A: Shr<B, Output=()> + Copy, B>(lhs: A, rhs: B) {
| ++++++
error[E0382]: use of moved value: `rhs`
--> $DIR/binop-consume-args.rs:62:10
|
LL | fn shr<A: Shr<B, Output=()>, B>(lhs: A, rhs: B) {
| --- move occurs because `rhs` has type `B`, which does not implement the `Copy` trait
LL | lhs >> rhs;
| --- value moved here
LL | drop(lhs);
LL | drop(rhs);
| ^^^ value used here after move
|
help: if `B` implemented `Clone`, you could clone the value
--> $DIR/binop-consume-args.rs:59:30
|
LL | fn shr<A: Shr<B, Output=()>, B>(lhs: A, rhs: B) {
| ^ consider constraining this type parameter with `Clone`
LL | lhs >> rhs;
| --- you could clone this value
help: consider restricting type parameter `B`
|
LL | fn shr<A: Shr<B, Output=()>, B: Copy>(lhs: A, rhs: B) {
| ++++++
error: aborting due to 20 previous errors
For more information about this error, try `rustc --explain E0382`.