[Haskell-cafe] GHC API question: Getting access to cpp processed source

[AlanKim Zimmerman]

Hi Cafe

I have just discovered that GHC.getTokenStream fails if it is used on a
module with CPP directives in it.

This is reported in http://ghc.haskell.org/trac/ghc/ticket/8265

Is there an easy way to get access to the pre-processed source, without
having to explicitly write it to an output file in a temporary location?

In other words an equivalent to getModuleSourceAndFlags that does the right
thing.

This currently prevents HaRe from processing files with preprocessor
directives in them, I would like to come up with a workaround for current
GHC versions, rather than having to wait for a future one.

Regards
  Alan
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