Hi Bit,
On Thu, 21 Oct 2010, Bit Connor wrote:
On Sat, Oct 16, 2010 at 10:29 AM, Claus Reinke <claus.rei...@talk21.com> wrote:
After it catches this error, the function returns (line 376):
return (fail (show e))
The "fail" is running in the Either monad (The Result type = Either).
This calls the default Monad implementation of fail, which is just a
call to plain old error. This basically causes the entire program to
crash.
Actually, it appears that simpleHTTP isn't actually supposed to throw
an IOException, and it is instead supposed to return a ConnError
result. So the real fix is to fix the code to make this happen. But
Sounds like a victim of
http://hackage.haskell.org/trac/ghc/ticket/4159
For mtl clients, 'fail' for 'Either' used to call 'Left'. That was
changed, though the ticket does not indicate the library
versions affected.
This looks like the problem. Any idea how to get the HTTP package
fixed? I could try making a patch myself, but I would prefer hearing
from the HTTP maintainer first, who doesn't seem to be around.
I'm just looking at fixing this so I can make an upload as discussed with
Sigbjorn. I guess the best thing to do is to make all the calls to fail
into something more explicit.
BTW, can you confirm that you were using GHC 7.0 (or 6.13) when this went
wrong?
Cheers,
Ganesh
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