New flagged storage for parallel joins #737
Draft
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Outdated suggestions cannot be applied.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.
Checklist
API changes
Breaking: RestrictedStorage removed (unsound without streaming JoinIter)
Breaking: DerefFlaggedStorage removed (unsound without streaming JoinIter)
Breaking: JoinIter::get/JoinIter::get_unchecked removed (unsound see #647) (can probably be brought back with a streaming JoinIter impl using GATs)
UnsplitFlaggedStorage added for deferred mutable access (like DerefFlaggedStorage) that can also be used in parallel joins (unlike any other flagged storage) (locked behind
nightly
feature).Breaking: Safety comments on Join/UnprotectedStorage traits improved (downstream crates that implement novel storages should review these).