Looking at WWDC .. how about that swift <-> cpp interop. Can we hijack that to get generic int...

# multiplatform

[ursus]

Looking at WWDC .. how about that swift <-> cpp interop. Can we hijack that to get generic interfaces (like Flow) ?

[ephemient]

the wwdc videos going into detail about swift aren't available yet

[ephemient]

but presumably they're presenting https://github.com/apple/swift-evolution/blob/main/visions/using-c%2B%2B-from-swift.md and https://github.com/apple/swift-evolution/blob/main/visions/using-swift-from-c%2B%2B.md

[ursus]

yea I just saw the presentation, they're showing vector<t> ..okay now I'm thinking it might be a class so 😄

[ursus]

but looks promising

[ephemient]

in the forums (https://forums.swift.org/t/report-swift-and-c-interoperability-project-progress-in-the-swift-5-8-time-frame/64941) they say

• Disabled support for instantiating C++ class templates from Swift, as the existing implementation is incompatible with Swift's type system. Class templates specializations that are already instantiated in the imported C++ code can still be used in Swift. For example, you can use a type like VecInt in Swift, if you have a typealias like this one in the C++ header: using VecInt = std::vector<int>;.

[ephemient]

regardless, I don't think that matters for Kotlin's generics since those aren't translated to C++ templates and aren't specialized

[ursus]

so no Flow<T> for me? 😞

[ephemient]

not unless Swift adds another way to do interop or Swift's own object protocol is documented well enough for Kotlin to implement and somebody does the work