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kotlinlang

isn't possible to implement the spread operator in a class, is it?

I think they are asking to make `*` an `operator fun`, so you can enable it on instances of your own classes and not just arrays. Which I think is a good idea, it would allow to pass any collection to `vararg`.

Exactly
```val color = Vec4()

val vertexData = floatArrayOf(*color)```

Interestingly there seems to be `kotlin.jvm.internal.SpreadBuilder` already, which supports spreading `Collection`, `Iterable` and `Iterator`, but the compiler does not let you.

<https://youtrack.jetbrains.com/issue/KT-23159>