jonatbergn

Keybase proof

I hereby claim:

• I am jonatbergn on github.
• I am jonathanbergen (https://keybase.io/jonathanbergen) on keybase.
• I have a public key ASDULjd4Eq1yBVjK9dKjZnyg2GMmOxEv4WOyqMKBxtgidAo

To claim this, I am signing this object:

jonatbergn

typealias Given<Input> = (Input) -> Boolean

infix fun <Input, Violation> Given<Input>.violates(violation: Violation): (Input) -> Violation? =
    { if (invoke(it)) violation else null }

fun <Input> given(checkForFailure: Input.() -> Boolean) = checkForFailure

fun <Input, Violation> validatorOf(vararg criteria: (Input) -> Violation?): (Input) -> List<Violation> =
    { input -> criteria.mapNotNull { it(input) } }

jonatbergn

class Milk
class Beans
class Powder
class Water
class Coffee(water: Water, powder: Powder)

sealed interface BrewResult {
    class Success(val coffee: Coffee) : BrewResult
    sealed interface Failure : BrewResult {
        object InsufficientPowder : Failure

jonatbergn

import kotlinx.coroutines.CoroutineDispatcher
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.flow.update
import kotlinx.coroutines.invoke

interface UseCase<State, Action> {

    val actions: Flow<Action>

jonatbergn

package com.jonathanbergen

import kotlinx.coroutines.Job
import kotlinx.coroutines.coroutineScope
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.FlowCollector
import kotlinx.coroutines.flow.distinctUntilChanged
import kotlinx.coroutines.flow.first
import kotlinx.coroutines.flow.flow
import kotlinx.coroutines.flow.onStart