arturaz

    // photon does not serialize ulong by default
    public static readonly IPhotonProperty<QGuid> PROP_USER_ID =
      PhotonProperty.a(new TypedKey<long>("UserId_p0"))
      .add(
        PhotonProperty.a(new TypedKey<long>("UserId_p1")),
        (l1, l2) => new QGuid((ulong) l1, (ulong) l2),
        id => (long) id.long1,
        id => (long) id.long2
      );
    

arturaz

### Why

* programmers are religious people
* people seem hostile to new ideas
* "it worked for me before, why change?"
  - HomeToGo JS vs TS
  - JUG vs FP

### What

arturaz

package app

import shapeless.ops.hlist.{ConstMapper, Intersection, Union, ZipWith}
import shapeless.{::, HList, HNil, Poly2}

case class Params()
sealed trait EvaluatableGeneratorFilter[+Result] {
  def eval(p: Params): Result
}

arturaz

package app

import shapeless.ops.hlist.{ConstMapper, Mapper, ZipWith}
import shapeless.{::, HList, HNil, Poly2}

case class Params()
sealed trait EvaluatableGeneratorFilter[+Result] {
  def eval(p: Params): Result
}

arturaz

package app

import shapeless.ops.hlist.Mapper
import shapeless.{::, HList, HNil, Poly2}

case class Params()
sealed trait EvaluatableGeneratorFilter[+Result] {
  def eval(p: Params): Result
}

arturaz

package app.utils

import scala.collection.generic.CanBuildFrom
import scala.language.higherKinds

object EitherUtils {
  def sequence[
    OuterTraversable[X1] <: TraversableOnce[X1],
    InnerTraversable[X2] <: TraversableOnce[X2],
    A, B

arturaz

using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using com.tinylabproductions.TLPLib.Collection;
using com.tinylabproductions.TLPLib.Data;
using com.tinylabproductions.TLPLib.Extensions;
using com.tinylabproductions.TLPLib.Functional;
using com.tinylabproductions.TLPLib.Utilities;

arturaz

using System;

namespace main {
  // Modeled against
  // https://medium.com/@olxc/free-monads-explained-pt-1-a5c45fbdac30
  //
  // Higher kind simulation from https://medium.com/@johnmcclean/simulating-higher-kinded-types-in-java-b52a18b72c74
  static class Id {
    public struct W {}

arturaz

x11@haven:~/work/budget-tracker/app$ cat build.gradle
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply from: rootProject.file('gradle/generated-kotlin-sources.gradle')

arturaz

    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="85dp"
        android:padding="8dp"
        app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
        android:elevation="4dp"
        android:background="#eeeeee"
        android:id="@+id/bottom_shelf"
        app:behavior_hideable="false"
        app:behavior_peekHeight="40dp"