Permitting trailing commas for record syntax ADT declarations

Roman Cheplyaka roma at
Fri Sep 26 21:26:50 UTC 2014

On 26/09/14 22:17, Richard Eisenberg wrote:
> A modest counter-proposal to this idea:
> What if we just stopped requiring commas in import/export lists? As far as I can tell, they're not necessary for proper parsing.

Things can get somewhat ambiguous:

  module M (module A value B type C)

Granted, 'module' and 'type' are keywords and cannot be value names, but:

* this introduces ambiguities for the parser, even if they are resolvable
* this is hard to read for humans
* it seems likely that we'll be getting even more qualifiers in the
future ('kind'?)


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