[Migrator] Conservative and Minimal @objc inference workflows #9116
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@swift-ci Please smoke test and merge |
Based on recommendations in SE-0160, there are two migration workflows: - Conservative: Maintain @objc visibility that was inferred in Swift 3 by adding @objc to all declarations that were implicitily visible to the Objective-C runtime. This is invoked in the migrator by adding the -migrate-keep-objc-visibility flag. - Minimal: Only declarations that must be visible to Objective-C based on their uses (or in cases like dynamic vars) are migrated. rdar://problem/31876357
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@swift-ci Please smoke test |
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Based on recommendations in SE-0160, there are two migration workflows:
by adding @objc to all declarations that were implicitily visible to
the Objective-C runtime. This is invoked in the migrator by adding the
-migrate-keep-objc-visibility flag.
on their uses (or in cases like dynamic vars) are migrated.
rdar://problem/31876357