Is this a known bug?

[Simon Peyton-Jones]

Yes, it's a known bug.  You need the HEAD, I'm afraid, where it's been
fixed for some time.

Simon

| -----Original Message-----
| From: glasgow-haskell-bugs-bounces at haskell.org
[mailto:glasgow-haskell-bugs-
| bounces at haskell.org] On Behalf Of Duncan Coutts
| Sent: 03 February 2004 20:56
| To: glasgow-haskell-bugs at haskell.org
| Subject: Is this a known bug?
| 
| Is this a known TH bug?
| 
| import Language.Haskell.THSyntax
| 
| foo e = $( [| e |] )
| 
| $ ghc -fglasgow-exts AlternateTH.hs
| ghc-6.2: panic! (the `impossible' happened, GHC version 6.2):
| 	nameModule e {- v a8 -}
| 
| Please report it as a compiler bug to
glasgow-haskell-bugs at haskell.org,
| or http://sourceforge.net/projects/ghc/.
| 
| If don't splice the expression in, there's no problem and there's no
| problem if I write it like so:
| 
| foo e = $( [| Nothing |] )
| 
| ie putting something simple in there rather than a lambda variable
bound
| outside the quasi-quotes.
| 
| You see, what I'm trying to do is something like:
| foo e = $( [| \m -> case m of
|                       Nothing -> False
|                       (Just _) -> True
|             |] `appE` [| e |] )
| 
| which is part of my investigations into the feasibility of using TH to
| implement partial evaluation.
| 
| Duncan
| 
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