[SE-0258] Improve backward compatibility of the newer property wrappers implementation #25393
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…teraction When the backing storage of a wrapped property is default-initialized via the property wrapper type's init(), don't count that as a direct initialization of the backing storage for the purposes of constructing the memberwise initializer. Instead, treat this case the same as if there were no initializer, keying the form of the memberwise initializer off the presence of init(initialValue:).
Fixes rdar://problem/51591955.
…perValue'. Provide some backward compatibilty for property delegates written before they became property wrapper, picking up 'delegateValue' (if present) but warning about it.
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@swift-ci please smoke test and merge |
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Improve compatibility of the newer property wrappers implementation with the first property-delegate-based implementation. Specifically:
@propertyWrapperas the primary attribute name; add deprecated aliases for@_propertyWrapperand@propertyDelegatedelegateValuewhenwrapperValueis not present