I think the missing piece was Opt_Cpp. Data.List uses the C preprocessor S
| -----Original Message----- | From: cvs-ghc-boun...@haskell.org [mailto:cvs-ghc-boun...@haskell.org] On | Behalf Of Ian Lynagh | Sent: 22 February 2011 15:09 | To: Jane Ren | Cc: cvs-...@haskell.org; glasgow-haskell-users@haskell.org | Subject: Re: Question about Haskell AST | | | Hi Jane, | | On Mon, Feb 21, 2011 at 11:46:16PM -0800, Jane Ren wrote: | > | > Did you mean I have to include the dflags like below to get the parsetree | of a base library file like libraries/base/GHC/List.lhs | > | > I am stilling getting the same error | > AstWalker: panic! (the 'impossible' happened) | > (GHC version 7.0.1 for x86_64-apple-darwin): | > lexical error at character 'i' | > | > my code is "... | > setSessionDynFlags ... | > target <- guessTarget targetFile Nothing | > setTargets [target] | > load LoadAllTargets" | > | > Would you have any other suggestions? | | This works for me with the 7.0 branch: | | main :: IO () | main = | defaultErrorHandler defaultDynFlags $ do | runGhc (Just libdir) $ do | dflags <- getSessionDynFlags | let dflags' = foldl xopt_set dflags | [Opt_Cpp, Opt_ImplicitPrelude, Opt_MagicHash] | setSessionDynFlags dflags' | target <- guessTarget fp Nothing | setTargets [target] | load LoadAllTargets | liftIO $ putStrLn "Done" | | Let me know if you still have problems. | | | Thanks | Ian | | | _______________________________________________ | Cvs-ghc mailing list | cvs-...@haskell.org | http://www.haskell.org/mailman/listinfo/cvs-ghc _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
