hello everyone, when to support the interoperatabi...

# compiler

[anlex N]

hello everyone, when to support the interoperatability of C++ and Kotlin?

[Chrimaeon]

Not even on the roadmap. https://kotlinlang.org/docs/roadmap.html

[ephemient]

https://kotlinlang.slack.com/archives/C3SGXARS6/p1635926448127300?thread_ts=1635923766.126900&cid=C3SGXARS6

[ephemient]

tl;dr it's impossible in full generality unless you are also a C++ compiler

[anlex N]

I am reviewing chromium source code. there, I see that java call c++ thing.

[Chrimaeon]

It’s possible on Java with JNI (Java Native Interface) https://docs.oracle.com/javase/8/docs/technotes/guides/jni/

[ephemient]

you have to wrap every C++ call in JNI manually, you can't call arbitrary C++ from Java directly. you can do the same for Kotlin/Native

[ephemient]

in Java's case, the C++ JNI API is just a thin wrapper around the C JNI API anyway; the JVM uses the C ABI to interact with everything

[anlex N]

I don't like JAVA. I hope Kotlin directly can call C++. When will Kotlin have this feature roadmap?

[ephemient]

I expect it will not ever. use C (or C++ extern "C") wrappers, like FFI works for practically every other non-C++ language in existence

[anlex N]

@ephemient please show me codes in Kotlin like you says.

by the way, who (people) design Kotlin language?

[anlex N]

or say who is Kotlin language's father?

[anlex N]

can Kotlin do "pass by reference" like C++?