[ghc-steering-committee] #596: sized literals in Show, rec: accept

[Simon Peyton Jones]

Looks good to me.

I have suggested that @monoidal opens a CLC issue.  (This change the `base`
API.)

Simon

On Thu, 29 Jun 2023 at 07:21, Joachim Breitner <mail at joachim-breitner.de>
wrote:

> Dear committee,
>
> Krzysztof Gogolewski in
> https://github.com/ghc-proposals/ghc-proposals/pull/596
> amends the sized literals proposal so that GHC uses the syntax
> 42#Int8 instead of (intToInt8# 42#) in the stock derived Show instances
> for data types with sized unboxed numbers.
>
> Implementation is also ready.
>
> Now that we have a syntax for these literals it’s clear that we want to
> use them in the show instances.
>
>
> There is no risk of breaking Show-Read-roundtripping, as Read instances
> cannot be derived (at the moment).
>
> This is a change in behavior of Show, so we should think for a moment
> how this affects stability. But none of the libraries in libraries/, in
> particularly not base, are affected by this change, according to
> Krzysztof.
>
> So I recommend to accept this.
>
> Cheers,
> Joachim
>
>
>
> --
> Joachim Breitner
>   mail at joachim-breitner.de
>   http://www.joachim-breitner.de/
>
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