On 2008 Aug 27, at 16:39, Jonathan Cast wrote:
The last `case' is a catch-all, so you do know the result of the
mplus's
is a Just, but you still need the Maybe.
I have to admit my thought here is that the problem isn't the Maybe,
it's the fromJust. Make it go away, force people to explicitly pattern
match so they have to think about it (and hopefully the compiler warns
them of the missing pattern).
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED]
electrical and computer engineering, carnegie mellon university KF8NH
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