[cxx-interop] Import using decls that expose methods from private base classes #69623
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Yes, it is, I should probably guard this by version, thanks! |
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hyp
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lib/ClangImporter/ImportDecl.cpp
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You should use isCxxInteropCompatVersionAtLeast(version::getUpcomingCxxInteropCompatVersion()) here instead. that will convert to a concrete one once we know the next version :)
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lib/ClangImporter/ImportDecl.cpp
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…e classes If a C++ type `Derived` inherits from `Base` privately, the public methods from `Base` should not be callable on an instance of `Derived`. However, C++ supports exposing such methods via a using declaration: `using MyPrivateBase::myPublicMethod;`. MSVC started using this feature for `std::optional` which means Swift doesn't correctly import `var pointee: Pointee` for instantiations of `std::optional` on Windows. This prevents the automatic conformance to `CxxOptional` from being synthesized. rdar://114282353 / resolves #68068
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…e classes If a C++ type `Derived` inherits from `Base` privately, the public methods from `Base` should not be callable on an instance of `Derived`. However, C++ supports exposing such methods via a using declaration: `using MyPrivateBase::myPublicMethod;`. MSVC started using this feature for `std::optional` which means Swift doesn't correctly import `var pointee: Pointee` for instantiations of `std::optional` on Windows. This prevents the automatic conformance to `CxxOptional` from being synthesized. rdar://114282353 / resolves swiftlang#68068 Cherrypick commit efc008a Cherrypick PR swiftlang#69623
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If a C++ type
Derivedinherits fromBaseprivately, the public methods fromBaseshould not be callable on an instance ofDerived. However, C++ supports exposing such methods via a using declaration:using MyPrivateBase::myPublicMethod;.MSVC started using this feature for
std::optionalwhich means Swift doesn't correctly importvar pointee: Pointeefor instantiations ofstd::optionalon Windows. This prevents the automatic conformance toCxxOptionalfrom being synthesized.rdar://114282353 / resolves #68068