It also worked in 6.2 Before that I don't remember. It is a very sensible thing to do simply because the mere ghci prompt suggests that we are in the scope of the top-level module. So one would really expect that ghci honors the directives of the top-level module.
Ralf > -----Original Message----- > From: Keean Schupke [mailto:[EMAIL PROTECTED] > Sent: Wednesday, March 02, 2005 9:20 AM > To: Simon Peyton-Jones > Cc: Ralf Lammel; glasgow-haskell-users@haskell.org > Subject: Re: GHC 6.4 release candidates available > > In the past having: > > {-# OPTIONS -fallow-overlapping-instances #-} > > in a module was enough to get ghci to allow the overlaps. > > so we do: > > ghci Test.hs > > now it does not work (but it did in 6.3), but: > > ghci -fallow-overlapping-instances Test.hs > > does... Even it Test.hs is the top level module. > > Keean. > > Simon Peyton-Jones wrote: > > >Ralf > > > >You have a pragma "-fallow-overlapping-instances" in Test.hs, and indeed > >it is honoured when compiling Test.hs. But it's not taken into account > >when compiling top-level expressions, or, indeed, if you were to import > >Test into another module. > > > >If you say ":set -falllow-overlapping-instances" it'll work fine. > > > >Now, maybe you'd like the flag to attach permanently to the *instance*, > >so that if an instance decl is compiled with > >-fallow-overlapping-instances, then no complaint will ever be issued for > >its overlaps, even if it is imported into a module that doesn't have > >-fallow-overlapping-instances. That would make sense, I think, but it's > >not implemented and never has been. > > > >Simon > > > >| -----Original Message----- > >| From: [EMAIL PROTECTED] > >[mailto:glasgow-haskell-users- > >| [EMAIL PROTECTED] On Behalf Of Ralf Lammel > >| Sent: 02 March 2005 08:45 > >| To: glasgow-haskell-users@haskell.org > >| Subject: RE: GHC 6.4 release candidates available > >| > >| I think this is an old bug, > >| or at least I have seen it months back. > >| > >| The "overlapping instances" directive does not make it to the > >top-level. > >| See attached sample with the offending session. > >| > >| Thanks for fixing. > >| Ralf > > > >_______________________________________________ > >Glasgow-haskell-users mailing list > >Glasgow-haskell-users@haskell.org > >http://www.haskell.org/mailman/listinfo/glasgow-haskell-users > > > > _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
