require value class parameters list to not be empty #1774
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Thanks, yeah I guess that's as far as we can get with automatic derivation. |
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I don't know if there is something better we can do for the reported case for scala2 (we could probably implement some macro to do the check in compile time but is it worth the effort)? I added the test in scala2 sources since for scala3 it won't compile although not mentioning the
Numclass specifically in the message.