diff options
Diffstat (limited to 'src/test/ui/liveness')
5 files changed, 53 insertions, 2 deletions
diff --git a/src/test/ui/liveness/liveness-move-call-arg.stderr b/src/test/ui/liveness/liveness-move-call-arg.stderr index 7c0e916ed..d14cd6cb4 100644 --- a/src/test/ui/liveness/liveness-move-call-arg.stderr +++ b/src/test/ui/liveness/liveness-move-call-arg.stderr @@ -3,9 +3,23 @@ error[E0382]: use of moved value: `x` | 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.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 diff --git a/src/test/ui/liveness/liveness-move-in-loop.stderr b/src/test/ui/liveness/liveness-move-in-loop.stderr index 832d4f8fa..a060914f1 100644 --- a/src/test/ui/liveness/liveness-move-in-loop.stderr +++ b/src/test/ui/liveness/liveness-move-in-loop.stderr @@ -4,8 +4,22 @@ error[E0382]: use of moved value: `y` LL | let y: Box<isize> = 42.into(); | - move occurs because `y` has type `Box<isize>`, which does not implement the `Copy` trait ... +LL | loop { + | ---- inside of this loop +LL | println!("{}", y); +LL | loop { + | ---- inside of this loop +LL | loop { + | ---- inside of this loop +LL | loop { + | ---- inside of this loop LL | x = y; | ^ value moved here, in previous iteration of loop + | +help: consider cloning the value if the performance cost is acceptable + | +LL | x = y.clone(); + | ++++++++ error: aborting due to previous error diff --git a/src/test/ui/liveness/liveness-move-in-while.stderr b/src/test/ui/liveness/liveness-move-in-while.stderr index b04a05fe4..4dff7447d 100644 --- a/src/test/ui/liveness/liveness-move-in-while.stderr +++ b/src/test/ui/liveness/liveness-move-in-while.stderr @@ -24,12 +24,22 @@ error[E0382]: borrow of moved value: `y` LL | let y: Box<isize> = 42.into(); | - move occurs because `y` has type `Box<isize>`, which does not implement the `Copy` trait ... +LL | loop { + | ---- inside of this loop LL | println!("{}", y); | ^ value borrowed here after move LL | while true { while true { while true { x = y; x.clone(); } } } - | - value moved here, in previous iteration of loop + | ---------- ---------- ---------- - value moved here, in previous iteration of loop + | | | | + | | | inside of this loop + | | inside of this loop + | inside of this loop | = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) +help: consider cloning the value if the performance cost is acceptable + | +LL | while true { while true { while true { x = y.clone(); x.clone(); } } } + | ++++++++ error: aborting due to previous error; 3 warnings emitted diff --git a/src/test/ui/liveness/liveness-use-after-move.stderr b/src/test/ui/liveness/liveness-use-after-move.stderr index 218b93c8e..3accba197 100644 --- a/src/test/ui/liveness/liveness-use-after-move.stderr +++ b/src/test/ui/liveness/liveness-use-after-move.stderr @@ -10,6 +10,10 @@ LL | println!("{}", *x); | ^^ value borrowed here after move | = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) +help: consider cloning the value if the performance cost is acceptable + | +LL | let y = x.clone(); + | ++++++++ error: aborting due to previous error diff --git a/src/test/ui/liveness/liveness-use-after-send.stderr b/src/test/ui/liveness/liveness-use-after-send.stderr index 8edc0463f..65d55ca8f 100644 --- a/src/test/ui/liveness/liveness-use-after-send.stderr +++ b/src/test/ui/liveness/liveness-use-after-send.stderr @@ -8,7 +8,16 @@ LL | send(ch, message); LL | println!("{}", message); | ^^^^^^^ value borrowed here after move | +note: consider changing this parameter type in function `send` to borrow instead if owning the value isn't necessary + --> $DIR/liveness-use-after-send.rs:3:54 + | +LL | fn send<T:Send + std::fmt::Debug>(ch: Chan<T>, data: T) { + | ---- in this function ^ this parameter takes ownership of the value = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) +help: consider cloning the value if the performance cost is acceptable + | +LL | send(ch, message.clone()); + | ++++++++ error: aborting due to previous error |