Others have already pointed this out, but it is worth saying again:
Maybe is not the only monadic effect which makes sense during
pattern-matching. Wolfram Kahl and I have explored some of these things
as part of the Pattern Matching Calculus,
http://sqrl.mcmaster.ca/~kahl/PMC/
[If you want
Hi Dan,
No, of course not. All I meant to say is that sometimes you want a
total view, and that a total view should be given a type that says as
much. The latter says this better than the former. On the other hand,
there are lots of circumstances in which you want a partial view, and I
think
Simon PJ and I are implementing view patterns, a way of pattern matching
against abstract datatypes, in GHC. Our design is described here:
http://hackage.haskell.org/trac/ghc/wiki/ViewPatterns
If you have any comments or suggestions about this design, we'd love to
hear them. You can
On Monday 23 July 2007, Rene de Visser wrote:
Simon PJ and I are implementing view patterns, a way of pattern matching
against abstract datatypes, in GHC. Our design is described here:
http://hackage.haskell.org/trac/ghc/wiki/ViewPatterns
If you have any comments or suggestions about
