Re: Deriviable type classes

2011-02-10 Thread José Pedro Magalhães
Hi, 2011/2/10 Yitzchak Gale g...@sefer.org Simon Peyton-Jones wrote: Generic Defaults... will replace... the Derivable type classes stuff... in GHC 7.2 or 7.4... Please yell if you are a secret user of derivable type classes, so this change would discombobulate you. Could you give us

Re: Deriviable type classes

2011-02-09 Thread José Pedro Magalhães
Hi, 2011/2/9 Simon Peyton-Jones simo...@microsoft.com Friends Just a heads-up. Pedro is working on implementing Generic Defaults, as described in his Haskell Symposium 2010 paper www.dreixel.net/research/pdf/gdmh_nocolor.pdf It will replace (and improve on) the Derivable type classes

RE: Deriviable type classes

2011-02-09 Thread Simon Peyton-Jones
] Sent: 09 February 2011 12:20 To: Simon Peyton-Jones Cc: GHC users Subject: Re: Deriviable type classes Hi, 2011/2/9 Simon Peyton-Jones simo...@microsoft.commailto:simo...@microsoft.com Friends Just a heads-up. Pedro is working on implementing Generic Defaults, as described in his Haskell Symposium

Re: Deriviable type classes

2011-02-09 Thread Sean Leather
2011/2/9 Simon Peyton-Jones: Friends Just a heads-up. Pedro is working on implementing Generic Defaults, as described in his Haskell Symposium 2010 paper www.dreixel.net/research/pdf/gdmh_nocolor.pdf It will replace (and improve on) the Derivable type classes stuff in GHC at the moment,

Re: Deriviable type classes

2011-02-09 Thread Yitzchak Gale
Simon Peyton-Jones wrote: Generic Defaults... will replace... the Derivable type classes stuff... in GHC 7.2 or 7.4... Please yell if you are a secret user of derivable type classes, so this change would discombobulate you. Could you give us a preview of the parts of the syntax spectrum that