java rant

Was it really hard to introduce type variables in Java? Of course I can declare

abstract class NaturalTransformation extends Pair<YObjects, Map<XObjects, YArrows>> {};

but shit, I need to have some kind of automatic cast from Pair<YObjects, Map<XObjects, YArrows>> to NaturalTransformation to make it work when I apply schwarzian transform... I know, I know, in Scala both tricks are readily available, but I am a stupid old Java programmer, so what can I do? Just switch to Scala and forget the nightmarish things like

 private Iterable<Pair<YObjects, Map<XObjects, YArrows>>> objectToFunctorTransforms() {
    return flatten(new Function<YObjects, Iterable<Pair<YObjects, Map<XObjects, YArrows>>>>() {
      // for an object y returns a collections of arrows from y to F(x) for x in this functor's domain, 
      // such that it is compatible: y -> F(x1) -> F(x2) is in the map too.
      public Iterable<Map<XObjects, YArrows>> apply(YObjects y) {
        return arrowsFromObject(y);
      }
    }.schwartzianTransform().map(codomain().objects()));
  }

? Maybe, maybe... let me think...

относительное ура

Предел функтора запрограммировал. Блин... уверен, что код читать никто не будет. Write-only. Зато функциональный и ленивый. Скоро напишу текстовку.

с наступающим ☃

☀☁☔☂☃☕

Джеки Чан и Вуди Аллен

Вы не представляете, сколько между ними общего, если отбросить расистскую фанаберию.