Yes, that GHC ticket shows that this problem is well known. Thank you.
On Fri, Aug 30, 2013 at 2:19 AM, Ben Lippmeier <b...@ouroborus.net> wrote: > > On 30/08/2013, at 2:38 AM, Daniel Díaz Casanueva wrote: > > > While hacking in one of my projects, one of my modules stopped to > compile for apparently no reason. The compiler just freezes (like if it > where in an infinite loop) while trying to compile that particular module. > Since I had this problem I have been trying to reduce the problem as much > as I could, and I came out with this small piece of code: > > > > > module Blah (foo) where > > > > > import Data.Vector (Vector) > > > import qualified Data.Vector as V > > > > > foo :: (a -> a) -> Vector a -> Vector a > > > foo f = V.fromList . V.foldl (\xs x -> f x : xs) [] > > Probably an instance of this one: > > http://ghc.haskell.org/trac/ghc/ticket/5550 > > Ben. > >
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