5144: Pattern synonyms -- help needed to sort out exports

[Dr. ERDI Gergo]

Hi,

Last week, I started implementing 
http://ghc.haskell.org/trac/ghc/ticket/5144 "Pattern synonyms". I'm using 
http://ghc.haskell.org/trac/ghc/wiki/PatternSynonyms for the details, and 
so far I have "pattern-only synonyms" working, with most of the 
infrastructure also laid down for the "simple pattern synonyms". My work 
is avalable at https://github.com/gergoerdi/ghc.git in the 
pattern-synonyms branch. My plan is to get the simple pattern synonyms 
stuff working as well, and then submit it as a first cut.

Before I formally submit my patches for review to this mailing list, 
though, there is one thing that's got me stumped: allowing pattern 
synonyms to be exported. I thought it would just work if I make sure the 
pattern synonym names (which are Conids) end up in the tcg_exports field 
of the TcGblEnv. However, this is not the case. Could someone point me in 
the right direction please on how to make these new declarations 
exportable?

Thanks,
 	Gergo

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