[Haskell-cafe] Why were datatype contexts removed instead of "fixing them"?

[Brandon Allbery]

On Sun, Apr 28, 2013 at 3:59 AM, harry <voldermort at hotmail.com> wrote:

> Dan Doel <dan.doel <at> gmail.com> writes:
>
> > However, another thing to consider is that getting rid of data type
> contexts was accepted into the language standard.
>
> ... which means that implementers should be free to "fix" data type
> contexts
> however they like, as they are now complier extensions which won't conflict
> with standard Haskell.


Except that people do build older programs with newer Haskell compilers,
and it's bad to "repurpose" a syntax like that because it leads to strange
errors.

-- 
brandon s allbery kf8nh                               sine nomine associates
allbery.b at gmail.com                                  ballbery at sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net
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