private
    val names: MutableSet<String> = hashSetOf()

    init {
        givenPrefixes.map { it.replace('.', '/') }.forEach { internalName ->
            names.add(internalName)
            prefixes.add("$internalName/")
        }
    }

    fun matches(packageName: String): Boolean {
        if (names.contains(packageName)) {
            return true
        }