Re: Add instance IsString ShowS where fromString = showString

-1. A ShowS instance would interfere with any other anonymous reader-monad style IsString instance. -Edward Kmett On Mon, Oct 5, 2009 at 5:23 AM, Nicolas Pouillard < nicolas.pouillard@gmail.com> wrote:

Excerpts from Bas van Dijk's message of Mon Oct 05 09:27:07 +0200 2009:

...

On Sun, Sep 27, 2009 at 10:51 PM, Bas van Dijk wrote:

...

Hello,

It would be really nice to use OverloadedStrings when constructing a ShowS, for example in a definition of showsPrec in an instance for Show.

The patch attached in the ticket[3544] adds the necessary instance to base/GHC/Show.lhs:

instance IsString ShowS where fromString = showString

Note that this does require TypeSynonymInstances.

Discussion period 2 weeks.

regards,

Bas

[3544] http://hackage.haskell.org/trac/ghc/ticket/3544

Just a reminder for this proposal. One week has passed and one to go.

Any comments, +1 or -1?

+1

-- Nicolas Pouillard http://nicolaspouillard.fr _______________________________________________ Libraries mailing list Libraries@haskell.org http://www.haskell.org/mailman/listinfo/libraries