Hello, guys. How can i do such thing: I have proje...

# announcements

[ilyagulya]

Hello, guys. How can i do such thing:
I have project with Java and Kotlin interop.
I want to use closures like this: (Int) -> Unit and provide them from Java to Kotlin.
However, in Java i need to provide Function1<Int, Unit> instead of Consumer<Int> or something like this.
Due to this limitation i need to return Unit.INSTANCE or use custom interfaces instead of closures
How can i avoid this problem?

[rednifre]

Couldn't you do fun bla_java(c: Consumer<Int>) and have that call the regular function that takes a Function1<Int, Unit> ?

[ilyagulya]

Yes, i could do this. But isn't it better to use (Int) -> Unit but Consumer<Int>?

[rednifre]

Yes, I meant you have bla(b: (Int) -> Unit) and bla(b: Consumer<Int>) = bla(x -> b.consume(x)), i.e. the java-friendly one that accepts a consumer just calls the "real" one that takes (Int) -> Unit.

[ilyagulya]

oh, i see

[ilyagulya]

However, it is not very clear approach, IMO