Hi Michael,
I have defined fromJustNote and headNote, which take an extra
parameter, for example:
fromJustNote msg (Just x) = x
fromJustNote msg Nothing = error $ fromJustNote failed, ++ msg
I also have lookupJust which does a lookup and a fromJust, since this
is a common pattern in my
Hello Michael,
Wednesday, June 14, 2006, 1:19:03 PM, you wrote:
frequently we are seeing messages like List.head: empty list or
Maybe.fromJust: Nothing. It is clear what happened and where the
one time i complained the close problem SPJ answered me (see ghc-users
mail-list at 23 may 2005):
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Bulat Ziganshin [EMAIL PROTECTED] writes:
I'm not belittling the underlying problem, which is real. But there do
seem to be many possible design choices without an obvious optimium. If
someone can boil out a principled and simple solution, it'd be a good
contribution.
You can also use CPP
Hi Michael,
On 6/14/06, Michael Marte [EMAIL PROTECTED] wrote:
I wonder whether it is possible to print a closure trace similar to a
stack trace in procedural programming. Say we have two modules A and B:
I wrote small (external) utility that does something like that for
ghc-built binaries.
