[API Notes] Allow tag-based API notes on anonymous tag decls with typedef names #7871
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Outdated suggestions cannot be applied.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.
It is common practice in C to declare anonymous tags that are immediately given a typedef name, e.g.,
At present, one can only express API notes on the typedef. However, that excludes the possibility of tag-specific notes like EnumExtensibility. For these anonymous declarations, process API notes using the typedef name as the tag name, so that one can add API notes to
MyType
via theTags
section.Fixes rdar://40617284 / swiftlang/swift#50323