cultureofone
MaximilianoFelice
/ builder-phantom-types.scala
Last active
July 26, 2023 22:49
A Builder example in Scala using Phantom Types
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| case class Food(ingredients: Seq[String]) | |
| class Chef[Pizza <: Chef.Pizza] protected (ingredients: Seq[String]) { | |
| import Chef.Pizza._ | |
| def addCheese(cheeseType: String): Chef[Pizza with Cheese] = Chef(ingredients :+ cheeseType) | |
| def addTopping(toppingType: String): Chef[Pizza with Topping] = Chef(ingredients :+ toppingType) | |
| def addDough: Chef[Pizza with Dough] = Chef(ingredients :+ "dough") |