Skip to content

Correct help message for arc_with_non_send_sync #15332

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jul 24, 2025
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion clippy_lints/src/arc_with_non_send_sync.rs
Original file line number Diff line number Diff line change
Expand Up @@ -73,7 +73,7 @@ impl<'tcx> LateLintPass<'tcx> for ArcWithNonSendSync {
diag.note(format!(
"`Arc<{arg_ty}>` is not `Send` and `Sync` as `{arg_ty}` is {reason}"
));
diag.help("if the `Arc` will not used be across threads replace it with an `Rc`");
diag.help("if the `Arc` will not be used across threads replace it with an `Rc`");
diag.help(format!(
"otherwise make `{arg_ty}` `Send` and `Sync` or consider a wrapper type such as `Mutex`"
));
Expand Down
6 changes: 3 additions & 3 deletions tests/ui/arc_with_non_send_sync.stderr
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@ LL | let _ = Arc::new(RefCell::new(42));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `Arc<RefCell<i32>>` is not `Send` and `Sync` as `RefCell<i32>` is not `Sync`
= help: if the `Arc` will not used be across threads replace it with an `Rc`
= help: if the `Arc` will not be used across threads replace it with an `Rc`
= help: otherwise make `RefCell<i32>` `Send` and `Sync` or consider a wrapper type such as `Mutex`
= note: `-D clippy::arc-with-non-send-sync` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(clippy::arc_with_non_send_sync)]`
Expand All @@ -17,7 +17,7 @@ LL | let _ = Arc::new(mutex.lock().unwrap());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `Arc<MutexGuard<'_, i32>>` is not `Send` and `Sync` as `MutexGuard<'_, i32>` is not `Send`
= help: if the `Arc` will not used be across threads replace it with an `Rc`
= help: if the `Arc` will not be used across threads replace it with an `Rc`
= help: otherwise make `MutexGuard<'_, i32>` `Send` and `Sync` or consider a wrapper type such as `Mutex`

error: usage of an `Arc` that is not `Send` and `Sync`
Expand All @@ -27,7 +27,7 @@ LL | let _ = Arc::new(&42 as *const i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `Arc<*const i32>` is not `Send` and `Sync` as `*const i32` is neither `Send` nor `Sync`
= help: if the `Arc` will not used be across threads replace it with an `Rc`
= help: if the `Arc` will not be used across threads replace it with an `Rc`
= help: otherwise make `*const i32` `Send` and `Sync` or consider a wrapper type such as `Mutex`

error: aborting due to 3 previous errors
Expand Down