Well, for your example frustration, the leading comma style would sort your problem nicely. As for the particulars… hmm, not sure. I use leading commas for both, so I never really noticed.
It may be that since modules simply expose functions to other programs, the form is syntactically irrelevant except when the module is being loaded. I am quite curious about it now, though, so I hope there are some more knowledgeable folks with some input. On Jul 11, 2011, at 4:49 AM, L Corbijn wrote: > Hello, > > I'm wondering why the trailing comma is allowed in export syntax, but not in > record syntax, here an example > module Foo ( > export1, -- is allowed > ) where > > data Type = Type { > record1 :: Foo, -- is not allowed > } > > To me this seems quite inconsistent and sometimes quite frustrating, imagine > the case that you want to temporarily remove the last record: > data Type = Type { > record1 :: Foo, > -- record2 :: Bar > } > this would fail due to an extra comma that has to be commented out. > > You could of course say that I'm using a bad style, but it remains that it > seems to be inconsistent to allow a trailing comma in one place and not in > the other. So is there an reason for this? > > Lars Corbijn > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe