Fernando Martín Ortiz fmo91

Lead Mobile Engineer at Parser Digital

fmo91 / Day01Part1.kt

Last active December 5, 2024 12:41

AdventOfCode2024 in Kotlin

	import kotlin.math.abs

	fun solve(input: String): Int {
	val firstList: MutableList<Int> = mutableListOf()
	val secondList: MutableList<Int> = mutableListOf()
	var result = 0

	for (line in input.lines()) {
	val components = line.split(" ").filter { it != "" }.map { it.toInt() }
	firstList.add(components[0])

fmo91 / Publishers+Create.swift

Last active December 29, 2020 13:43

Very simple but handy Publishers extension to create custom AnyPublisher as in RxSwift's Observable<E>.create method

	// Copy and Paste this in your project
	import Combine
	import Foundation

	extension Publishers {
	struct PublisherObserver<V, E: Swift.Error> {
	private let sendValue: (V) -> Void
	private let sendCompletion: (Subscribers.Completion<E>) -> Void

	init(

fmo91 / EventStream.swift

Created December 23, 2020 18:41

EventStream implementation. It's something similar to Observable<Element> from RxSwift but just as a proof of concept.

	import Foundation

	public final class EventStream<Element> {
	private(set) var handlers: [StreamSubscription: StreamHandler<Element>] = [:]
	private var eventsQueue: [Event<Element>] = []
	private var isEnabled: Bool = true

	private init() {}

	public static func create(_ handler: @escaping (StreamHandler<Element>) -> Void) -> EventStream<Element> {

fmo91 / AsyncOperation.swift

Created October 25, 2020 23:47

Basic support for async operations in Swift based on Combine, using generics, protocol oriented programming and type erasure.

	//
	// AsyncOperation.swift
	// SwiftUIPoC
	//
	// Created by Fernando Martín Ortiz on 25/10/2020.
	//

	import Combine

	protocol AsyncOperation {

fmo91 / SwiftUIWireframe.swift

Created October 12, 2020 19:22

	import SwiftUI
	import Combine

	struct CreateToDoScreen: View {
	@StateObject var viewModel = CreateToDoViewModel()

	var body: some View {
	VStack {
	TextField("Title", text: $viewModel.title)
	Toggle("Completed", isOn: $viewModel.completed)

fmo91 / MutateOperator.swift

Created July 6, 2020 00:15

Value types mutation on copy operator

	import Foundation

	precedencegroup MutationPrecedence {
	associativity: left
	}

	infix operator +> : MutationPrecedence

	func +> <A> (v: A, f: (inout A) -> Void) -> A {
	var copy = v

fmo91 / FunctionalNetworkingLayer.swift

Last active July 19, 2020 00:24

Toy Networking Layer with functional operators

	import Foundation
	import PlaygroundSupport

	enum NetworkError: Error {
	case generic
	}

	precedencegroup PipeAssociativity {
	associativity: left
	}

fmo91 / MinimalPromise.swift

Last active March 9, 2021 07:28

The minimum viable promise in Swift

	import Foundation

	struct Promise<T> {
	typealias ResultType = Result<T, Error>
	typealias ResultObserver = (ResultType) -> Void
	typealias CreatorFunction = (@escaping ResultObserver) -> Void
	private let creatorFunction: CreatorFunction

	init(creatorFunction: @escaping CreatorFunction) {
	self.creatorFunction = creatorFunction

fmo91 / index.html

Last active April 2, 2020 15:47

test-dumbergist

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Dumber Gist</title>
	<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1.0, user-scalable=no">
	</head>
	<!--
	Dumber Gist uses dumber bundler, the default bundle file
	is /dist/entry-bundle.js.

fmo91 / 0001-single-source-of-truth-011.swift

Created November 4, 2019 04:06

	// We create a protocol for formatting a name
	protocol NameFormatterType {
	func format(name: String) -> String
	}

	// A concrete implementation adds a prefix "Sir" to the given name.
	struct SirFormatter: NameFormatterType {
	func format(name: String) -> String {
	"Sir \(name)"
	}