atom feed35 messages in org.haskell.haskell[Haskell] PROPOSAL: class aliases
FromSent OnAttachments
John MeachamOct 12, 2005 7:41 pm 
Philippa CowderoyOct 12, 2005 7:55 pm 
John MeachamOct 12, 2005 8:16 pm 
Wolfgang JeltschOct 13, 2005 5:48 am 
John MeachamOct 13, 2005 6:03 am 
Malcolm WallaceOct 13, 2005 6:15 am 
Andres LoehOct 13, 2005 6:23 am 
Malcolm WallaceOct 13, 2005 6:29 am 
John MeachamOct 13, 2005 6:37 am 
John MeachamOct 13, 2005 6:39 am 
Simon Peyton-JonesOct 13, 2005 7:02 am 
Benjamin FranksenOct 13, 2005 7:26 am 
Benjamin FranksenOct 13, 2005 7:33 am 
S.M.KahrsOct 13, 2005 7:37 am 
John MeachamOct 13, 2005 8:32 am 
Simon Peyton-JonesOct 13, 2005 9:23 am 
Udo StenzelOct 13, 2005 9:46 am 
Jan-Willem MaessenOct 13, 2005 9:58 am 
Paul GovereauOct 13, 2005 1:21 pm 
Jacques CaretteOct 13, 2005 1:52 pm 
John MeachamOct 13, 2005 4:45 pm 
John MeachamOct 13, 2005 6:13 pm 
John MeachamOct 13, 2005 6:21 pm 
David MenendezOct 13, 2005 6:49 pm 
John MeachamOct 13, 2005 8:33 pm 
aj...@spamcop.netOct 13, 2005 11:25 pm 
Ashley YakeleyOct 14, 2005 6:20 am 
Ashley YakeleyOct 14, 2005 6:31 am 
Wolfgang JeltschOct 14, 2005 9:46 am 
Wolfgang JeltschOct 14, 2005 11:44 am 
Wolfgang JeltschOct 14, 2005 11:47 am 
Remi TurkOct 14, 2005 2:05 pm 
Udo StenzelOct 15, 2005 6:15 am 
Ross PatersonOct 27, 2005 6:58 am 
Wolfgang JeltschOct 28, 2005 7:05 am 
Subject:[Haskell] PROPOSAL: class aliases
From:Wolfgang Jeltsch (wolf@jeltsch.net)
Date:Oct 14, 2005 9:46:06 am
List:org.haskell.haskell

Am Donnerstag, 13. Oktober 2005 12:22 schrieb John Meacham:

[...]

although perhaps

class alias FooBar a = (Foo a, Bar a) where ...

since the new name introduced usually appears to the left of an equals sign.

Yes, exactly.

This also solves the problems of where to put new supertype constraints.

class alias FooBar a = Show a => (Foo a, Bar a) where ...

should do nicely.

What is the difference between this and the following:

class alias FooBar a = (Show a, Foo a, Bar a) where ...

[...]

Best wishes, Wolfgang