Waiting for interop for jvm. :grin:

# kotlin-native

[benny.huo]

Waiting for interop for jvm. 😁

[msink]

Why not just use Kotlin/JVM? What is use-case?

[gildor]

To replace JNI. Actually not sure what it should be. Some compiler plugin for Kotlin/JVM or some Kotlin/Native and Kotlin/JVM interop

[msink]

So it's really not "interop with jvm" but "interop jvm and c"?

[msink]

cinterop -flavor=jvm

[olonho]

yes, Mike is right, we do have (although do not support) Kotlin/JVM -> C interop for internal purposes

[benny.huo]

After hours of searching, I still don’t know how to use “cinterop -flavor=jvm”… I just want to use Kotlin to replace Java on Jvm part and c/c++ on native part.

[gildor]

There are two similar, but not exactly the same cases:
JVM interop with C
JVM interop with Kotlin/Native

They are interchangeable sometimes but would be nice to have both

[gildor]

Maybe, to have both as the same interop system
Actually, for us most important to have C, but we plan to have also K/N components in the future, so seamless interop with K/N from JVM would be good too (even on level of common modules for example, without exposing of native types or APIs)

[benny.huo]

Agreed.

[louiscad]

I think opening Kotlin/JVM <-> C & Kotlin/Native interop should be done as an experimental feature in future stages of Kotlin/Native so the Kotlin team can get feedback on the first interop design, and break things under experimental status if redesign/changes are needed

[gildor]

Would happy to test such experimental feature with our project

[olonho]

Technically, nothing prevents you from using Kotlin/JVM -> C interop right away, it is not closed in any way.

[louiscad]

I'm just not skilled enough to figure it out at the moment

[napperley]

Next best thing would be having serialisation/message passing in a static API style between Kotlin JVM, Kotlin Native, and Kotlin JS. 😀

[olonho]

Thanks Andrey, it makes perfect sense, although we have to keep balance with other directions of work, we fully understand importance of productization of Kotlin/JVM-> C interop