Skip to content

Commit

Permalink
Implement Send and Sync for ThinBox<T>
Browse files Browse the repository at this point in the history
Just like `Box<T>`, `ThinBox<T>` owns its data on the heap, so it should
implement `Send` and `Sync` when `T` does.
  • Loading branch information
cuviper committed Jun 27, 2022
1 parent 2f3ddd9 commit 6400736
Showing 1 changed file with 8 additions and 0 deletions.
8 changes: 8 additions & 0 deletions library/alloc/src/boxed/thin.rs
Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,14 @@ pub struct ThinBox<T: ?Sized> {
_marker: PhantomData<T>,
}

/// `ThinBox<T>` is `Send` if `T` is `Send` because the data is owned.
#[unstable(feature = "thin_box", issue = "92791")]
unsafe impl<T: ?Sized + Send> Send for ThinBox<T> {}

/// `ThinBox<T>` is `Sync` if `T` is `Sync` because the data is owned.
#[unstable(feature = "thin_box", issue = "92791")]
unsafe impl<T: ?Sized + Sync> Sync for ThinBox<T> {}

#[unstable(feature = "thin_box", issue = "92791")]
impl<T> ThinBox<T> {
/// Moves a type to the heap with its `Metadata` stored in the heap allocation instead of on
Expand Down

0 comments on commit 6400736

Please sign in to comment.