[Haskell-cafe] Backpack vs plain old classes and instances

Clinton Mead clintonmead at gmail.com
Thu Jul 19 07:46:52 UTC 2018

Hi Silvio

That makes a lot of sense thanks for the reply!


On Thu, Jul 19, 2018 at 4:20 PM, Silvio Frischknecht <
silvio.frischi at gmail.com> wrote:

> Hi
> It seems similar to the modules system of ML. As I understand it, the
> main difference to Haskell type classes is that you have to specify
> instances explicitly in in this system. This means you get more control
> at the expense of more code.
> Have a look at this example on stackoverflow.
> https://stackoverflow.com/a/36927542/1117884
> Cheers
> Silvio
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