This is *all* the code you need to get generic derivation of Show typeclasses with Magnolia. Come to my @ScalaIO_FR talk later!pic.twitter.com/RlRg8Gjl9C
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Presumably that is once-per-typeclass, though. Can it be opt-in, I wonder?
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I don’t want ‘case class Foo(i: Int)’ getting a Show instance unless I say I want one (I think this is “deriving Show” in Haskell)
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Right, yes: You can make the macro method non-implicit, then call it when you need a specific typeclass instance.
End of conversation
New conversation -
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Eg: ‘@derivingShow case class Foo(i: Int)’
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