why `inline` classes allow only one constructor pa...

# announcements

[deviant]

why inline classes allow only one constructor param? it would be nice to have inline class Pair to avoid extra allocations

[Andreas Sinz]

And how do you return a pair from a method?

[diesieben07]

And how do you maintain proper semantics for volatile fields with type of such an inline class?

[deviant]

And how do you return a pair from a method?

as usual: return Pair(a, b)

And how do you maintain proper semantics for volatile fields with type of such an inline class?

can't help here. i'm not a kotlin compiler expert

[diesieben07]

Both of those are not possible with JVM bytecode.

[diesieben07]

On the JVM you can only return one thing from a function. You would have boxing at every method return of your inline class.

[deviant]

make sense

[diesieben07]

Same thing for volatile, not really possible on the JVM

[diesieben07]

This is one of the reasons project valhalla (native value types on the jvm) is taking a long time

[deviant]

now it's clear for me. thanks