Hi, is it possible to add an external secondary constructor for a class ? I have a

typealias AABB = Rectangle

with an external "constructor"

fun Rectangle(x: Int = 0, y: Int = 0, width: Int = 0, height = 0) = ...

but it's not present on the type AABB, I also tested with

fun Rectangle.invoke(x: Int ...

but it still doesn't work, is it possible ?

If the class has a companion object, then you can make an extension on the companion which looks like a constructor:

fun Rectangle.Companion.invoke(...): Rectangle

You can just make a to level

fun Rectangle(...)

(or

fun AABB(...)

)

Oh yes the

invoke

has to be on the Companion object, it kinda works, as I can't directly do

val a = AABB()

but

val a = AABB.invoke()

fun

with similar name, suggested by @Ruckus is more flexible solution in this case