[Haskell-cafe] Need an example of new type constructor with zero data constructors

James Brown james.brown5374 at gmail.com
Fri Aug 12 15:16:16 UTC 2016

What's the purpose to allow data declarations with no constructors?

On Fri, Aug 12, 2016 at 11:08 AM, Sergey N. Yashin <yashin.sergey at gmail.com>

> For zero data constructors you need to use only EmptyDataDecls
> <https://prime.haskell.org/wiki/EmptyDataDecls> extension.
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