Template Haskell rejects list comprehensions

[roldugin]

Template Haskell stopped accepting list comprehensions in the GHC head.

$ ghc-stage2 --interactive -fth
Prelude> :m +Language.Haskell.TH
Prelude Language.Haskell.TH> runQ [| [x | x <- [1,2,3]] |]

<interactive>:0:9:
   Exotic statement not (yet) handled by Template Haskell [x]

[simonpj]

Thanks. This was a glitch following the monad-comoprehension changes. Fixed by

commit ba33ff9b0ae36ebeeda2eb5a37758984779fc11d
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Fri Jun 10 19:52:53 2011 +0100

    Make DsMeta catch up with LastStmt (fix Trac #5235)
    
    The new monad comprehension stuff introduce LastStmt,
    and DsMeta must convert that to TH syntax

>---------------------------------------------------------------

 compiler/deSugar/DsMeta.hs |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)