Are there any proposals for variadic type paramete...
# language-proposalsd
Daniel Pitts
12/09/2023, 1:04 AMAre there any proposals for variadic type parameters? Along the lines of
fun <...Types> doThing(block: (Types...)->Unit, args: Types...){ block(*args) }h
hfhbd
12/09/2023, 6:43 AMHow do you use it? How should the compiler check the erased generics at runtime?
c
Chris Fillmore
12/09/2023, 4:32 PMThis use case is usually solved by creating overloads with the number of types you need
Chris Fillmore
12/09/2023, 4:33 PMIt’s boilerplate but variadic types is a bit of a niche use case
d
Daniel Pitts
12/09/2023, 4:33 PMI'm only asking if there was a proposal for it, not suggesting it would be easy and that there are no other alternatives 😉
Daniel Pitts
12/09/2023, 4:34 PMThe one use-case that is common is for N length Tuples.
c
Chris Fillmore
12/09/2023, 4:34 PMOk that I don’t know
m
mikhail.zarechenskiy
12/11/2023, 8:52 AMThere is only an issue for now: https://youtrack.jetbrains.com/issue/KT-31427/Support-variadic-generics
Feel free to drop your use-case there.
Variadic generics could be a really nice extension of the language, it's a natural generalisation of our
kotlin.Function(N)