Public Mutable Property (ARCH8186)

Key kotlin.quality.public-mutable-field · Severity warning · Category quality

Flags public var properties on classes - state anyone can change from anywhere.

Incorrect

class Cart { var items = mutableListOf<Item>() }

Correct

class Cart {
    private val _items = mutableListOf<Item>()
    val items: List<Item> get() = _items
}

Fix

Use private set or expose a read-only view.