diff options
Diffstat (limited to 'tests/ui/liveness')
-rw-r--r-- | tests/ui/liveness/liveness-move-call-arg-2.rs | 12 | ||||
-rw-r--r-- | tests/ui/liveness/liveness-move-call-arg-2.stderr | 26 |
2 files changed, 38 insertions, 0 deletions
diff --git a/tests/ui/liveness/liveness-move-call-arg-2.rs b/tests/ui/liveness/liveness-move-call-arg-2.rs new file mode 100644 index 000000000..b93535c89 --- /dev/null +++ b/tests/ui/liveness/liveness-move-call-arg-2.rs @@ -0,0 +1,12 @@ +fn take(_x: Box<isize>) {} + + +fn main() { + let _ = || { + let x: Box<isize> = Box::new(25); + + loop { + take(x); //~ ERROR use of moved value: `x` + } + }; +} diff --git a/tests/ui/liveness/liveness-move-call-arg-2.stderr b/tests/ui/liveness/liveness-move-call-arg-2.stderr new file mode 100644 index 000000000..479a086a8 --- /dev/null +++ b/tests/ui/liveness/liveness-move-call-arg-2.stderr @@ -0,0 +1,26 @@ +error[E0382]: use of moved value: `x` + --> $DIR/liveness-move-call-arg-2.rs:9:18 + | +LL | let x: Box<isize> = Box::new(25); + | - move occurs because `x` has type `Box<isize>`, which does not implement the `Copy` trait +LL | +LL | loop { + | ---- inside of this loop +LL | take(x); + | ^ value moved here, in previous iteration of loop + | +note: consider changing this parameter type in function `take` to borrow instead if owning the value isn't necessary + --> $DIR/liveness-move-call-arg-2.rs:1:13 + | +LL | fn take(_x: Box<isize>) {} + | ---- ^^^^^^^^^^ this parameter takes ownership of the value + | | + | in this function +help: consider cloning the value if the performance cost is acceptable + | +LL | take(x.clone()); + | ++++++++ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0382`. |