Permitting trailing commas for record syntax ADT declarations

Alexander Berntsen alexander at plaimi.net
Tue Sep 23 07:40:08 UTC 2014


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On 23/09/14 09:31, Simon Peyton Jones wrote:
> Well, it *is* a language extension, exactly like lots of other 
> language extensions, isn't it? (E.g. UnicodeSyntax.)  What 
> alternative action, exactly, are you proposing? Why do you propose
> to treat it differently to other language extensions?  I would be 
> reluctant to simply add it without any indication; then GHC would 
> accept non-Haskell 2010 programs.  And we have not done that with 
> other extensions.
If this policy has been followed that firmly then I too am reluctant
to go against it. A pragma it is then.
- -- 
Alexander
alexander at plaimi.net
https://secure.plaimi.net/~alexander
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