Pattern synonyms for 7.8?

[Simon Peyton Jones]

Check out TcRnDriver.tcRnDeclsi.

Simon

| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Dr.
| ERDI Gergo
| Sent: 13 January 2014 12:49
| To: Austin Seipp
| Cc: Joachim Breitner; GHC Devs
| Subject: Re: Pattern synonyms for 7.8?
| 
| On Thu, 9 Jan 2014, Austin Seipp wrote:
| 
| > 1) As Richard pointed out, the docs are under docs/users_guide, as
| > well as the release notes. Please feel free to elaborate however you
| > want on the feature and the bulletpoint for the release notes.
| 
| Hope to get around to these in the weekend.
| 
| > 2) The failures are indeed a result of your code, in particular:
| >
| >   driver                 T4437 [bad stdout] (normal)
| >   generics               GenDerivOutput [stderr mismatch] (normal)
| >   generics               GenDerivOutput1_0 [stderr mismatch] (normal)
| >   generics               GenDerivOutput1_1 [stderr mismatch] (normal)
| >   rename/should_compile  T7336 [stderr mismatch] (normal)
| 
| Fixed these.
| 
| > 3) It seems GHCi does not support declaring pattern synonyms at the
| > REPL. I'm not sure if it's intentional, but if it goes in like this,
| > please be sure to document it in the release notes. We can file a
| > ticket later for supporting pattern synonyms at the REPL.
| 
| It's definitely not intentional and I have no idea why it would be so.
| Isn't GHCi a fairly thin wrapper around the GHC internals? Is there any
| wiki page detailing the differences in GHCi vs GHC code paths?
| 
| Thanks,
|  	Gergo
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