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Re:Show HN: Haskell-like Enum in Scala by pul on Tuesday August 01, 2017 @07:45AM (#14899664)
Scala 3 will include emuns as a language construct [1], but that will probably not be released before 2019.

[1] http://www.bigdatarepublic.nl/key-takeaways-from-the-scala-d...