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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
import System.IO
import GHC
import BasicTypes
import DynFlags
import MonadUtils
import Outputable
import ApiAnnotation
import Bag (filterBag,isEmptyBag)
import System.Directory (removeFile)
import System.Environment( getArgs )
import qualified Data.Map as Map
import qualified Data.Set as Set
import Data.Dynamic ( fromDynamic,Dynamic )
main::IO()
main = do
[libdir] <- getArgs
testOneFile libdir "Test10399"
testOneFile libdir fileName = do
((anns,cs),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
return (pm_annotations p,p)
let spans = Set.fromList $ getAllSrcSpans (pm_parsed_source p)
problems = filter (\(s,a) -> not (Set.member s spans))
$ getAnnSrcSpans (anns,cs)
exploded = [((kw,ss),[anchor])
| ((anchor,kw),sss) <- Map.toList anns,ss <- sss]
exploded' = Map.toList $ Map.fromListWith (++) exploded
problems' = filter (\(_,anchors)
-> not (any (\a -> Set.member a spans) anchors))
exploded'
putStrLn "---Problems---------------------"
putStrLn (intercalate "\n" [showAnns $ Map.fromList $ map snd problems])
putStrLn "---Problems'--------------------"
putStrLn (intercalate "\n" [pp $ Map.fromList $ map fst problems'])
putStrLn "--------------------------------"
putStrLn (intercalate "\n" [showAnns anns])
where
getAnnSrcSpans :: ApiAnns -> [(SrcSpan,(ApiAnnKey,[SrcSpan]))]
getAnnSrcSpans (anns,_) = map (\a@((ss,_),_) -> (ss,a)) $ Map.toList anns
getAllSrcSpans :: (Data t) => t -> [SrcSpan]
getAllSrcSpans ast = everything (++) ([] `mkQ` getSrcSpan) ast
where
getSrcSpan :: SrcSpan -> [SrcSpan]
getSrcSpan ss = [ss]
showAnns anns = "[\n" ++ (intercalate "\n"
$ map (\((s,k),v)
-> ("(AK " ++ pp s ++ " " ++ show k ++" = " ++ pp v ++ ")\n"))
$ Map.toList anns)
++ "]\n"
pp a = showPpr unsafeGlobalDynFlags a
-- ---------------------------------------------------------------------
-- Copied from syb for the test
-- | Generic queries of type \"r\",
-- i.e., take any \"a\" and return an \"r\"
--
type GenericQ r = forall a. Data a => a -> r
-- | Make a generic query;
-- start from a type-specific case;
-- return a constant otherwise
--
mkQ :: ( Typeable a
, Typeable b
)
=> r
-> (b -> r)
-> a
-> r
(r `mkQ` br) a = case cast a of
Just b -> br b
Nothing -> r
-- | Summarise all nodes in top-down, left-to-right order
everything :: (r -> r -> r) -> GenericQ r -> GenericQ r
-- Apply f to x to summarise top-level node;
-- use gmapQ to recurse into immediate subterms;
-- use ordinary foldl to reduce list of intermediate results
everything k f x = foldl k (f x) (gmapQ (everything k f) x)
|
