Tips

Tips.md

zip v.s. combine

zip: Emits only when both flows have emitted values. If one flow emits more frequently than the other, it will suspend until the slower flow emits.

combine: Emits as soon as one of the flows emits, using the latest value from the other flow.

LinkedList

sealed class LinkedList<out T>
data class Node<T>(
    val head: T, 
    val tail: LinkedList<T>
) : LinkedList<T>()
object Empty : LinkedList<Nothing>()

fun main() {
    val strs = Node("A", Node("B", Empty))
    val ints = Node(1, Node(2, Empty))
    val empty: LinkedList<Char> = Empty
}

ComposeImmutableList

@Keep
@Immutable
data class ComposeImmutableList<T>(
    val innerList: List<T>
) : List<T> by innerList