Corey | On 14 July 2010 18:39, Corey O'Connor <coreyocon...@gmail.com> wrote: | > I believe I have run headlong into issue #3064 in ghc | > (http://hackage.haskell.org/trac/ghc/ticket/3064). All I think I know | > is this: | > * this is a performance issue with the system used to solve type | constraints. | > * the solver is undergoing an overhaul to resolve performance issues | > in addition to other issues. | > * An efficient constraint solver is difficult. NP-Complete in the general | case?
It would be very helpful to have your code as a test case. Can you boil out a concrete program that demonstrates very poor performance of the type checker, and submit a Trac report? That way we'll test the new type inference engine against it. Lacking the example, we won't. Which is isn't a promise that we'll solve your problem -- but it's much easier to solve if we have a concrete example. Many thanks! Simon _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
