Re: [Haskell-cafe] [ANNOUNCE] hashable-generics

Yes. Sorry if I wasn't clear. That's what I intended. So would a patch adding this to hashable be accepted? - Clark On Sun, Nov 4, 2012 at 11:39 AM, Johan Tibell wrote:

On Sun, Nov 4, 2012 at 8:35 AM, Clark Gaebel wrote:

...

@dag:

I would love for this to be merged into Data.Hashable, and I think it

would make a lot of people's lives easier, and prevent them from writing bad hash functions accidentally.

Couldn't we do it using GHC's default implementations based on signatures features, so we don't have to expose any new things in the API?

We used that in unordered-containers like so:

#ifdef GENERICS default parseRecord :: (Generic a, GFromRecord (Rep a)) => Record -> Parser a parseRecord r = to <$> gparseRecord r #endif

-- Johan