In kotlin, how to make the setter of properties in primary constructor private?

Question

In kotlin, how to make the setter of properties in primary constructor private?

class City(val id: String, var name: String, var description: String = "") {

    fun update(name: String, description: String? = "") {
        this.name = name
        this.description = description ?: this.description
    }
}

I want the setter of properties name to be private, and the getter of it public, how can I do?

Answer 1

The solution is to create a property outside of constructor and set setter's visibility.

class Sample(var id: Int, name: String) {

    var name: String = name
        private set

}

Update:
They're discussing it here: https://discuss.kotlinlang.org/t/private-setter-for-var-in-primary-constructor/3640