[Haskell-cafe] Can we come out of a monad?

John Lato jwlato at gmail.com
Tue Aug 10 05:13:18 EDT 2010

On Tue, Aug 10, 2010 at 6:48 AM, Edward Z. Yang <ezyang at mit.edu> wrote:
> Excerpts from Luke Palmer's message of Tue Aug 10 01:04:04 -0400 2010:
>> Except, of course, you want the signature
>>   evalCont :: Cont r a -> a
>> Which is not possible.  But I am not sure where all this discussion is
>> coming from, Maybe and (r ->) cannot be broken out of.  Isn't that
>> example enough?
> I'm confused... that's the type of evalCont, no?

Except that I messed up and "evalCont" doesn't compile.  The type
would have to be
  evalCont :: Cont a a -> a

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