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{-# LANGUAGE RankNTypes #-}
-- This program must be called with GHC's libdir as the single command line
-- argument.
module Main where
-- import Data.Generics
import Data.Data
import Data.List (intercalate)
import System.IO
import GHC
import GHC.Driver.Session
import GHC.Driver.Ppr
import GHC.Utils.Monad
import GHC.Utils.Outputable
import GHC.Data.Bag (filterBag,isEmptyBag)
import System.Directory (removeFile)
import System.Environment( getArgs )
import qualified Data.Map as Map
import Data.Dynamic ( fromDynamic,Dynamic )
main::IO()
main = do
[libdir] <- getArgs
testOneFile libdir "AnnotationLet"
testOneFile libdir fileName = do
p <- runGhc (Just libdir) $ do
dflags <- getSessionDynFlags
setSessionDynFlags dflags
let mn =mkModuleName fileName
addTarget Target { targetId = TargetModule mn
, targetAllowObjCode = True
, targetContents = Nothing }
load LoadAllTargets
modSum <- getModSummary mn
p <- parseModule modSum
t <- typecheckModule p
d <- desugarModule t
l <- loadModule d
let ts=typecheckedSource l
r =renamedSource l
-- liftIO (putStr (showSDocDebug (ppr ts)))
return (pm_annotations p)
let anns = p
ann_items = apiAnnItems anns
ann_eof = apiAnnEofPos anns
(l,_) = fst $ head $ Map.toList ann_items
annModule = getAnnotation anns l AnnModule
annLet = getAnnotation anns l AnnLet
putStrLn (intercalate "\n" [showAnns ann_items,pp annModule,pp annLet,pp l,
"EOF: " ++ show ann_eof])
showAnns anns = "[\n" ++ (intercalate "\n"
$ map (\((s,k),v)
-> ("(AK " ++ pp s ++ " " ++ show k ++" = " ++ pp v ++ ")\n"))
$ Map.toList anns)
++ "]\n"
pp a = showPprUnsafe a
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