On Fri, 9 Jan 2009, Miguel Mitrofanov wrote:
On 9 Jan 2009, at 02:47, Ross Paterson wrote:
On Thu, Jan 08, 2009 at 10:27:59PM +0100, Henning Thielemann wrote:
A nice. I jumped into 4.3 and found
scontext -> simpleclass | (simpleclass_1, ..., simpleclass_n)
simpleclass -> qtycls tyvar
So it must be 'atype' instead of 'tyvar'? Haskell 98 is really mighty.
Oh. Don't I look silly? You were absolutely right, it's not Haskell 98.
Me too. I've looked at the type declaration syntax instead of instance declaration one.
Maybe the report is not complete? I mean, the current behaviour of Hugs and GHC (as I observed it) is more consistent, and maybe that's what the designers had in mind.
Actually Hugs does reject it without flags. Maybe you have a -98 stored somewhere?
When starting, my Hugs tells Haskell 98 mode: Restart with command line option -98 to enable extensions