Alex Lorenz

Tracking issue to list all known issues related to C++ interoperability support in Swift 5.9

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This issue contains a list of all known limitations and other issues related to C++ interoperability support in the **Swift 5.9** release of Swift. Not known issues are not listed...

# Must-fixes for Swift-5.9 This section tracks all of the C++ interoperability fixes we would like to have in the Swift-5.9 release. They're categorized by different groups presented below: ##...

As reported here: https://forums.swift.org/t/undefined-symbol-when-using-c-interop-and-url-bookmark/65444

[cxx-interop] compilations that do not enable C++ interoperability sh…

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…ould not be able to import modules that do enable C++ interoperability by default A supplemental hidden frontend option allows advanced users to opt-out of this requirement. Fixes https://github.com/apple/swift/issues/65833 Fixes...

[5.9][cxx-interop] evaluate default constructor's unevaluated exception sp…

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…ec if needed when emitting C++ constructor call Fixes https://github.com/apple/swift/issues/65891 - Explanation: Swift needs to understand if C++ functions are `noexcept` to elide exception traps. Some C++ class members, like...

[cxx-interop] C++ records should have address-only layout when they can't be passed in registers

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This ensures that a C++ record with only ObjC ARC pointers with trivial other members is passed by value in SIL Fixes https://github.com/apple/swift/issues/61929 Additionally, [cxx-interop] mark C++ classes with trivial_abi...

[interop] Tracking issue to track support for immutable noncopyable borrows for C++ types in Swift

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We want to immutably borrow C++ types so that they can't be copied implicitly. A prime example of it is `std::vector`, which we want to pass into `const std::vector &`...

[android] add a module map for Android NDK

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This module map covers the Bionic C standard library and other Posix headers used in the Android NDK

DNM: android changes

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for testing

[android] add an Android NDK Swift overlay

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This PR is based on the PR that adds the module map for the android NDK: https://github.com/apple/swift/pull/72161