[BitwiseCopyable] Don't derive on @unchecked field #71242
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Allow for a type to conform to BitwiseCopyable but not in such a way that aggregates containing an instance will derive conformance automatically. Useful for types which don't involve reference counting but nonetheless can't simply be copied bit-by-bit.
The appearance of a field whose type's conformance to BitwiseCopyable is @unchecked permits the type not to conform.
nate-chandler
force-pushed
the
bitwise-copyable/not-for-unchecked
branch
from
f797aed to
e725c93
Compare
|
@swift-ci please test |
The pitch calls for such types to obstruct inference of _BitwiseCopyable in aggregates containing them.
nate-chandler
force-pushed
the
bitwise-copyable/not-for-unchecked
branch
from
e725c93 to
c8119e3
Compare
|
@swift-ci please test |
1 similar comment
|
@swift-ci please test |
nate-chandler
requested review from
ahoppen,
bnbarham,
hamishknight,
rintaro,
hborla,
slavapestov,
xedin,
a team and
AnthonyLatsis
as code owners
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Allow for a type to conform to
BitwiseCopyablebut not in such a way that aggregates containing an instance will derive conformance automatically. Useful for types which don't involve reference counting but nonetheless can't simply be copied bit-by-bit.