Scala: Type classes example with some pizzas

typeclasses.scala

sealed trait Pizza { def name: String }
case class CookedPizza(name: String) extends Pizza
case class NonCookedPizza(name: String) extends Pizza

def GetPizzaOfType[PizzaType <: Pizza](implicit factory: Factory[PizzaType]): PizzaType = factory.create()

trait Factory[PizzaType <: Pizza] {
  def create(): PizzaType
}

object PizzaFactories {
  implicit object CookedPizzaFactory extends Factory[CookedPizza] {
    override def create(): CookedPizza = {
      CookedPizza("Ma pizza cuite.")
    }
  }
  
  implicit object NonCookedPizzaFactory extends Factory[NonCookedPizza] {
    override def create(): NonCookedPizza = {
      NonCookedPizza("Ma pizza non-cuite.")
      }
  }
}

import PizzaFactories._

println(GetPizzaOfType[CookedPizza].name)
println(GetPizzaOfType[NonCookedPizza].name)