What do you mean by passing function argument by ref?

# language-evolution

[vngantk]

What do you mean by passing function argument by ref?

[PHondogo]

I mean this:

fun test(ref v: Int) {
  ++v
}

var x = 1
test(x)
println(x) // 2

[PHondogo]

Also for objects:

fun test(ref v: Any?) {
  v = Test()
}
var x: Any? = null
test(x)
// x points to created in test object of class Test

[PHondogo]

May be explicitly specify passing by ref at call site. For example:

test(ref x)