Re: Deriving regression or bad code?

I was getting a similar error with standalone deriving (already attached to that bug), but I didn't try it through-out. I'll let you know how it goes. -Ron On Mon, Apr 12, 2010 at 6:01 AM, Simon Peyton-Jones wrote:

It's really a bug. I've fixed it in my tree, but I'm at 2.8 and don't have time to validate etc.  So I'm doubtful that I'll be in time to get a fix into 6.12.1, alas.

Well, maybe I can build a patch and send it to Simon/Ian for testing. I'll try to do that if it's important to you.

it's bit of an exotic case because of the higher-kindedness so I don't think it'll bite too man people

There's a good workaround: use "standalone deriving".

You

| -----Original Message----- | From: glasgow-haskell-users-bounces@haskell.org [mailto:glasgow-haskell- | users-bounces@haskell.org] On Behalf Of Ron Alford | Sent: 10 April 2010 22:33 | To: glasgow-haskell-users | Subject: Re: Deriving regression or bad code? | | Just for fun, I tried it on 6.12.1.20100330 with the same result. | Does anyone have a workaround?  Otherwise I need to revert to 6.10. | | -Ron | | On Thu, Apr 8, 2010 at 10:35 AM, Ron Alford wrote: | > At Igloo's suggestion, it's now a ticket: | > http://hackage.haskell.org/trac/ghc/ticket/3965 | > | > -Ron | > | > On Thu, Apr 8, 2010 at 1:39 AM, Ron Alford wrote: | >> I've attached the simplest example of my code that used to compile in | >> GHC 6.10 now gives the error in GHC 6.12.1: | > ... | > | _______________________________________________ | Glasgow-haskell-users mailing list | Glasgow-haskell-users@haskell.org | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users