🍒 [5.7] CS: optional storage key path components are read-only
#42384
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@swift-ci Please test |
jckarter
approved these changes
Apr 15, 2022
hborla
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Apr 15, 2022
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@swift-ci Please test macOS |
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Thanks! |
AnthonyLatsis
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Apr 20, 2022
…s to `optional` requirements Stop pretending that an optional requirement is immutable via the `StorageImplInfo` request. This approach has lead astray the conformance checker and might have had a negative impact on other code paths that expect `isSettable` or `supportsMutation` to mean "has a setter". Also, this does not work for imported foreign declarations, since they bypass the request. Instead, use a forwarding `AbstractStorageDecl::isSettableInSwift` method that special-cases optional requirements. This is a follow-up fix for a regression caused by swiftlang#42384.
AnthonyLatsis
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🍒 release cherry pick
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optionalstorage component with a setter. Cherry-picked to accompany SILGen: Handle key paths with@objc optionalproperty and subscript components #42137, which landed before the release branch was cut.optionalstorage components.optionalstorage requirements immutable at theStorageImplInfolevel in Swift, as they are meant to be for now. However, we still take care to emit Objective-C setter descriptors.optionalstorage key path components are read-only #42363