On Sun, 2007-12-02 at 03:29 +0000, Robin Green wrote: > On Sat, 01 Dec 2007 21:22:53 -0600 > Derek Elkins <[EMAIL PROTECTED]> wrote: > > > > There's also the issue of finding a more elegant way of threading > > > the Store through my evaluator, but I'm not concerned too much > > > about that at this point. I can probably define a state-carrying > > > monad like Parsec. My real concerns are the first two issues. > > > > Use ST. First-class state isn't too great unless you specifically > > want that. > > Or use IO - that way you can use a Hashtable for looking up > identifiers. Although, better still is to convert variable > references into Ints, instead of using a Hashtable.
>From what I hear, Data.HashTable is impressively inefficient to the extent that you're better off using Data.Map solely for performance (not to mention it being pure.) _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
