Hello, I noticed that `kotlin.time.Duration` is in...

# multiplatform

[David Holas]

Hello,
I noticed that kotlin.time.Duration is inconsistently passed into swift code.

class UsedInSwiftCode {
    
    val durations = listOf(10.minutes) // In swift this is just [Any]
    
   	val duration = 10.minutes // In swift this is Int64 of... half-nanoseconds?
}

But other classes (as far as I can tell) are represented in their fullish form in swift in both cases above.

Why is that? Is there some way to make it consistent? Or should I just write my own Duration and use that instead? Also I am confused about the representation in swift, it seems to be a number of half nanoseconds in that duration which is strange to me, why would it be like that?

[Dovydas]

Hi, have you figured out anything else to do with this? Or do you think it's safe to assume that the Int64 is half-nanoseconds?

[David Holas]

I ended up just writing my own Duration class that works normally in swift

[Dovydas]

Would you mind sharing?

[David Holas]

It's actually a wrapper around the original Duration , its pretty simple really. Just fun toNanoseconds() = kotlinDuration.toNanoseconds() type of stuff for every method. I just wanted the Duration class to be treated in Swift in a same way as any other class, no half-nanosecond nonsense.