joelpedraza

@Suppress("NON_PUBLIC_PRIMARY_CONSTRUCTOR_OF_INLINE_CLASS")
inline class Result<out T : Any, out E : Any> @PublishedApi internal constructor(
    @PublishedApi
    @JvmField
    internal val value: Any
) {
    
    companion object {
        @Suppress("NOTHING_TO_INLINE")
        inline fun <T : Any, E : Any> Ok(value: T): Result<T, E> = Result(value)

joelpedraza

import java.util.*

class Node<T : Comparable<T>>(
    val value: T,
    val children: MutableSet<Node<T>> = hashSetOf(),
    val parents: MutableSet<Node<T>> = hashSetOf()
) : Comparable<Node<T>> {
    override fun compareTo(other: Node<T>): Int = this.value.compareTo(other.value)

    // prevent toString from infinite recursion