syntaxfunctional-programmingkotlin

functional programming in kotlin - assigning function

There is an arrayOf function in kotlin. I want to have the same under different name. I tried:

val each = ::arrayOf<UUID>
val each = ::arrayOf
val each = ::<UUID>arrayOf
val each = arrayOf

I get only compilation errors. is it possible in kotlin? how? or do i have to repeat the whole signature and invocation?

Solution

  • This doesn't work because arrayOf is an inline function with a reified type parameter. It's not possible to store this reified type parameter as part of a function reference or to pass it when invoking the function through a function reference.

    If you want to have an alias for this function, you need to define it differently:

    inline fun <reified T> each(vararg x: T) = arrayOf(*x)