Hi, Unfortunately hint does not provide the functionality I require, and from what I remember about hint they also use the GHC API, I guess the problem here is the defaultErrorhandlers that is in initGhcMonad . I've been wondering if I give my own implementation, one that doesn't do any printing at all and reimplement initGhcMonad I can maybe get the desired result but I'm not sure -----Original Message----- From: haskell-cafe-bounces@haskell.org [mailto:haskell-cafe-bounces@haskell.org] On Behalf Of Martin Hilbig Sent: Thursday, May 20, 2010 21:45 To: haskell-cafe@haskell.org Subject: Re: [Haskell-cafe] making the GHC Api not write to stderr hi, i tried this too, but i did not get it. a very nice workaround is to use hint [1]. have fun martin [1]: http://hackage.haskell.org/package/hint On 20.05.2010 20:05, Phyx wrote:
I was wondering how to forcibly quiet down the API. I have a custom handler in place, but when I call the function on failure both my handler gets called and somewhere somehow errors get printed to the stderr, which I really need to avoid.
My current code looks like
getModInfo :: Bool -> String -> String -> IO (ApiResults ModuleInfo)
getModInfo qual file path = handleSourceError processErrors $
runGhc (Just libdir) $ do
dflags <- getSessionDynFlags
setSessionDynFlags $ configureDynFlags dflags
target <- guessTarget file Nothing
addTarget target
setSessionDynFlags $ dflags { importPaths = [path] }
load LoadAllTargets
graph <- depanal [] False
let modifier = moduleName . ms_mod
modName = modifier $ head graph
includes = includePaths dflags
imports = importPaths dflags
dflags' <- Debug.trace (moduleNameString modName) getSessionDynFlags
setSessionDynFlags $ dflags' { includePaths = path:includes
, importPaths = path:imports
}
parsed <- parse modName
checked <- typecheckModule parsed
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