[Haskell-cafe] [ANN] ttc- - Textual Type Classes

Travis Cardwell travis.cardwell at extrema.is
Thu Jun 3 10:21:30 UTC 2021

On Thu, Jun 3, 2021 at 6:44 PM MigMit wrote:
> Agreed. I like to use DefaultSignatures like this:
> Then all the user needs to do is to say
> instance Parse Double
> and it would automagically use the provided implementation.

This looks like a great compromise, allowing developers to utilize the
default implementation for a specific type with very little code.  A
prominent warning against doing so in shared libraries would still be
needed, of course.  I look forward to experimenting with this design

Thank you very much for the suggestion!  Also, thank you for the
example code, as this pattern is new to me.

Best regards,


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