exported pattern matching
Jim Apple
jbapple+haskell-prime at gmail.com
Sun Feb 12 11:54:29 EST 2006
On 2/9/06, S.J.Thompson <S.J.Thompson at kent.ac.uk> wrote:
> Jim - it's worth looking at the proposal for views, proposed by Warren
> Burton et al, accessible from
>
> http://haskell.galois.com/cgi-bin/haskell-prime/trac.cgi/wiki/Views
Views have been getting a "no", and it seems like this is because of
pattern guards. I see this exporting trick as much more lightweight
than views, as it doesn't change any syntax except the export list,
exacts no run-time cost, and doesn't (I think) require type system
changes. And pattern guards don't solve the problem.
That doesn't mean that I'm smart enough to implement my suggestion so
we can all have a look at how it might work out. :-)
Jim
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