old-school-f

Functors. Just f*** functors!

Typesafe! NO implicits; NO type-classes; NO F[_]s;

ONLY CLASSIC INHERITANCE and F-bounded polymorphism!

• all compatible with "do-notations" aka "for-comprehensions" (see examples.sc)
• zip's as a simpler alternative to applicative builders, lol
• continuation passing style (cps) for async calls (see examples-cps.sc)

Notes:

• it could be ported only to programming languages without erasures or the ones workarounding it (like scala)
• the dispatching is dynamic, but there aren't much overrides, so invokevirtual in JVM shouldn't take too much time (presumably).
• technically all functors are higher-order, and F[T] is higher than T - though in scala-slang we usually refer to F[_] as a higher order type (basically coz it's abstraction we wan't to implement some time later, higher-kind type in Haskell).