[Haskell-cafe] Re: Introducing Instances in GHC point releases

Henning Thielemann lemming at henning-thielemann.de
Thu May 28 12:16:02 EDT 2009

On Thu, 28 May 2009, Simon Marlow wrote:

> Quite.  I argued the "no orphan instances in libraries" position on the 
> libraries list last year, here's the start of the (longish) thread:
> http://www.haskell.org/pipermail/libraries/2008-September/010618.html

I remember. What I propose additionally is, that, when orphan instances 
are banned, we can allow addition of instances with the A.B.* version 
range just like this is allowed for all other language elements.

> We ought to have a "guidelines for API design" section of the wiki somewhere, 
> so we could put this in it.

That's currently spread across Category:Style.

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