Haskell Platform Proposal: add the 'aeson' library

Thomas Schilling nominolo at googlemail.com
Wed Sep 18 13:26:24 CEST 2013

I'm also +1, though I'd strongly prefer that the instance for
ByteString gets dropped before inclusion.

The "don't do that" approach is not very Haskelly.  A Char8 ByteString
is the same type as a Word8 ByteString, so while you could argue that
Char8 is implicitly ASCII, the instance couldn't distinguish it from
Word8 ByteStrings where this doesn't make sense. Since JSON doesn't
have a standard way of encoding binary data
(utf8/base64/base64url/...), external JSON API often may use their own
convention, so it's best to require users to be explicit about

On 18 September 2013 11:24, Herbert Valerio Riedel <hvr at gnu.org> wrote:
> On 2013-09-18 at 09:22:07 +0200, Michael Snoyman wrote:
> [...]
>> So: +1 from me on including aeson as-is, and if Bryan's interested in
>> making this change to aeson, I'd consider it a perk.
> +1 like Micheal
> (i.e. I support `aeson` in HP unconditionally; but I'd be delighted if
> the `ByteString` instances not pure issue would be fixed somehow)
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