[Merged by Bors] - Allow shared access to SyncCell
for types that are already Sync
#7718
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Objective
The type
SyncCell<T>
(added in #5483) is used to force any wrapped type to beSync
, by only allowing exclusive access to the wrapped value. This restriction is unnecessary for types which are alreadySync
.Changelog
read
toSyncCell
, which allows shared access to values that already implement theSync
trait.