Someone know why

freeze()

isn't part of the stdlib-common? Would be useful in multiplatform common code.

freeze()

is a no-op on JVM/JS so I guess this is why. It's pretty easy to do your own version though

Thanks for the link @mbonnin! I had some multiplatform code with kotlin 1.3 that used a bunch of

@SharedImmutable

annotations on some `val`s in

data

classes and

enum

classes, but it seems it doesn't work anymore with kotlin >= 1.4. I needed those annotations for the iOS clients of my library as the data returned is transfering across other threads. Is calling

.freeze()

at a few strategic places the way to go or is there a more "standard" way to replace these

@SharedImmutable

?

TBH at this point, I'd start looking into Kotlin 1.6 and the new memory model

I think "long term" your suggestion makes a lot of sense. However, yes this is code already in production, so I'm a bit reluctant (to use 1.6). Also, I don't have much time right now, so I think I will bite the bullet and use a

.freeze()

multiplatform implementation for now. I don't understand why

@SharedImmutable

doesn't work anymore though. It doesn't seem documented anywhere.