On Thu, Jun 21, 2007 at 10:51:25AM +0100, Simon Peyton-Jones wrote:
> Good idea. I'll improve the message by adding the suggestion to use a
> case expression instead.
Or do notation. I almost always prefer do notation, even if it means
something like:
fromJust $ do a' :< b' <- commute (b :< a)
a'' :< c' <- commute (c :< a')
return a'
--
David Roundy
http://www.darcs.net
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