rust/tests/ui/nll/closures-in-loops.stderr

40 lines
1.5 KiB
Plaintext

error[E0382]: use of moved value: `x`
--> $DIR/closures-in-loops.rs:6:9
|
LL | fn repreated_move(x: String) {
| - move occurs because `x` has type `String`, which does not implement the `Copy` trait
LL | for i in 0..10 {
| -------------- inside of this loop
LL | || x;
| ^^ - use occurs due to use in closure
| |
| value moved into closure here, in previous iteration of loop
|
help: consider cloning the value if the performance cost is acceptable
|
LL | || x.clone();
| ++++++++
error[E0499]: cannot borrow `x` as mutable more than once at a time
--> $DIR/closures-in-loops.rs:13:16
|
LL | v.push(|| x = String::new());
| - ^^ - borrows occur due to use of `x` in closure
| | |
| | `x` was mutably borrowed here in the previous iteration of the loop
| first borrow used here, in later iteration of loop
error[E0524]: two closures require unique access to `x` at the same time
--> $DIR/closures-in-loops.rs:20:16
|
LL | v.push(|| *x = String::new());
| - ^^ -- borrows occur due to use of `x` in closure
| | |
| | closures are constructed here in different iterations of loop
| first borrow used here, in later iteration of loop
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0382, E0499, E0524.
For more information about an error, try `rustc --explain E0382`.