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Value classes serve this purpose in Scala: `case class Id(id: Long) extends AnyVal` will have long-typed values at runtime (*mostly).
by wickedshimmy 11y ago
Value classes serve this purpose in Scala: `case class Id(id: Long) extends AnyVal` will have long-typed values at runtime (*mostly).
- Psyonic 11y agoIs *mostly even true? Given the list of restrictions here: http://docs.scala-lang.org/overviews/core/value-classes.html http://docs.scala-lang.org/overviews/core/value-classes.html It seems to me that you'd have to be fairly careful to have any confidence your not instantiating classes for them. Do you know if there are any compiler flags or other way to know if your value classes are working as expected?