+{-# OPTIONS -Wall #-}
+
{- A simple driver that loads, typechecks, prepares, re-typechecks, and interprets the
GHC standard Prelude modules and an application module called Main.
Note that, if compiled under GHC, this requires a very large heap to run!
-}
+import Control.Exception
+import Data.List
+import Data.Maybe
import Monad
-import System.Environment
+import Prelude hiding (catch)
import System.Cmd
+import System.Console.GetOpt
+import System.Environment
import System.Exit
+import System.FilePath
import Core
-import Printer
-import ParsecParser
-import Env
+import Dependencies
+import Overrides
import Prims
import Check
import Prep
import Interp
+import ParsecParser
+
-- You may need to change this.
+baseDir :: FilePath
baseDir = "../../libraries/"
---------
+-- change to True to typecheck library files as well as reading type signatures
+typecheckLibs :: Bool
+typecheckLibs = False
--- Code for checking that the external and GHC printers print the same results
-testFlag = "-t"
+-- You shouldn't *need* to change anything below this line...
-validateResults :: FilePath -> FilePath -> IO ()
-validateResults origFile genFile = do
+-- Code to check that the external and GHC printers print the same results
+validateResults :: FilePath -> Module -> IO ()
+validateResults origFile m = do
+ let genFile = origFile </> "parsed"
+ writeFile genFile (show m)
resultCode <- system $ "diff -u " ++ origFile ++ " " ++ genFile
putStrLn $ case resultCode of
ExitSuccess -> "Parse validated for " ++ origFile
_ -> "Error diffing files: " ++ origFile ++ " " ++ genFile
------------------------------------------------------------------------------
-process :: Bool -> (Check.Menv,[Module]) -> String -> IO (Check.Menv,[Module])
-process doTest (senv,modules) f =
- do putStrLn ("Processing " ++ f)
- resultOrErr <- parseCore f
- case resultOrErr of
- Right m -> do
- putStrLn "Parse succeeded"
- let outF = f ++ ".parsed"
- writeFile outF (show m)
- when doTest $ (validateResults f outF)
- case checkModule senv m of
- OkC senv' ->
- do putStrLn "Check succeeded"
- let m' = prepModule senv' m
- {- writeFile (f ++ ".prepped") (show m') -}
- case checkModule senv m' of
- OkC senv'' ->
- do putStrLn "Recheck succeeded"
- return (senv'',modules ++ [m'])
- FailC s ->
- do putStrLn ("Recheck failed: " ++ s)
- error "quit"
- FailC s ->
- do putStrLn ("Check failed: " ++ s)
- error "quit"
- Left err -> do putStrLn ("Parse failed: " ++ show err)
- error "quit"
-
-main = do args <- getArgs
- let (doTest, fname) =
- case args of
- (f:fn:_) | f == testFlag -> (True,fn)
- (fn:_) -> (False,fn)
- _ -> error $
- "usage: ./Driver [filename]"
- mapM_ (process doTest (initialEnv,[])) (libs ++ [fname])
- (_,modules) <- foldM (process doTest) (initialEnv,[]) (libs ++ [fname])
- let result = evalProgram modules
- putStrLn ("Result = " ++ show result)
- putStrLn "All done"
- where libs = map (baseDir ++) ["./ghc-prim/GHC/Generics.hcr",
- "./ghc-prim/GHC/PrimopWrappers.hcr",
- "./ghc-prim/GHC/Bool.hcr",
- "./ghc-prim/GHC/IntWord64.hcr",
- "./base/GHC/Base.hcr",
- "./base/GHC/List.hcr",
- "./base/GHC/Enum.hcr",
- "./base/GHC/Show.hcr",
- "./base/GHC/Num.hcr",
- "./base/GHC/ST.hcr",
- "./base/GHC/Real.hcr",
- "./base/GHC/STRef.hcr",
- "./base/GHC/Arr.hcr",
- "./base/GHC/Float.hcr",
- "./base/GHC/Read.hcr",
- "./base/GHC/Ptr.hcr",
- "./base/GHC/Word.hcr",
- "./base/GHC/Int.hcr",
- "./base/GHC/Unicode.hcr",
- "./base/GHC/IOBase.hcr",
- "./base/GHC/Err.hcr",
- "./base/GHC/Exception.hcr",
- "./base/GHC/Stable.hcr",
- "./base/GHC/Storable.hcr",
- "./base/GHC/Pack.hcr",
- "./base/GHC/Weak.hcr",
- "./base/GHC/Handle.hcr",
- "./base/GHC/IO.hcr",
- "./base/GHC/Dotnet.hcr",
- "./base/GHC/Environment.hcr",
- "./base/GHC/Exts.hcr",
- "./base/GHC/PArr.hcr",
- "./base/GHC/TopHandler.hcr",
- "./base/GHC/Desugar.hcr",
- "./base/Data/Ord.hcr",
- "./base/Data/Maybe.hcr",
- "./base/Data/Bits.hcr",
- "./base/Data/STRef/Lazy.hcr",
- "./base/Data/Generics/Basics.hcr",
- "./base/Data/Generics/Aliases.hcr",
- "./base/Data/Generics/Twins.hcr",
- "./base/Data/Generics/Instances.hcr",
- "./base/Data/Generics/Text.hcr",
- "./base/Data/Generics/Schemes.hcr",
- "./base/Data/Tuple.hcr",
- "./base/Data/String.hcr",
- "./base/Data/Either.hcr",
- "./base/Data/Char.hcr",
- "./base/Data/List.hcr",
- "./base/Data/HashTable.hcr",
- "./base/Data/Typeable.hcr",
- "./base/Data/Dynamic.hcr",
- "./base/Data/Function.hcr",
- "./base/Data/IORef.hcr",
- "./base/Data/Fixed.hcr",
- "./base/Data/Monoid.hcr",
- "./base/Data/Ratio.hcr",
- "./base/Data/STRef.hcr",
- "./base/Data/Version.hcr",
- "./base/Data/Complex.hcr",
- "./base/Data/Unique.hcr",
- "./base/Data/Foldable.hcr",
- "./base/Data/Traversable.hcr"]
\ No newline at end of file
+data Flag = Test | NoDeps
+ deriving Eq
+
+options :: [OptDescr Flag]
+options =
+ [Option ['t'] ["test"] (NoArg Test) "validate prettyprinted code",
+ Option ['n'] ["no-deps"] (NoArg NoDeps) "don't compute dependencies automatically"
+ ]
+
+process :: Bool -> (Check.Menv,[Module]) -> (FilePath, Module)
+ -> IO (Check.Menv,[Module])
+process _ (senv,modules) p@(f,m) | isLib p && not typecheckLibs = do
+ -- if it's a library and we set typecheckLibs to False:
+ -- prep, but don't typecheck
+ m' <- prepM senv m f
+ return (senv, modules ++ [m'])
+ where isLib (fp,_) = baseDir `isPrefixOf` fp
+process doTest (senv,modules) (f, m@(Module mn _ _)) = catch (do
+ when doTest $ validateResults f m
+ (case checkModule senv m of
+ OkC senv' ->
+ do putStrLn $ "Check succeeded for " ++ show mn
+ m' <- prepM senv' m f
+ case checkModule senv' m' of
+ OkC senv'' ->
+ do putStrLn "Recheck succeeded"
+ return (senv'',modules ++ [m'])
+ FailC s ->
+ do putStrLn ("Recheck failed: " ++ s)
+ error "quit"
+ FailC s -> error ("Typechecking failed: " ++ s))) handler
+ where handler e = do
+ putStrLn ("WARNING: we caught an exception " ++ show e
+ ++ " while processing " ++ f)
+ return (senv, modules)
+
+prepM :: Check.Menv -> Module -> FilePath -> IO Module
+prepM senv' m _f = do
+ let m' = prepModule senv' m
+ --writeFile (f </> ".prepped") (show m')
+ return m'
+
+main :: IO ()
+main = do
+ args <- getArgs
+ case getOpt Permute options args of
+ (opts, fnames@(_:_), _) ->
+ let doTest = Test `elem` opts
+ computeDeps = NoDeps `notElem` opts in
+ doOneProgram computeDeps doTest fnames
+ _ -> error "usage: ./Driver [filename]"
+ where doOneProgram :: Bool -> Bool -> [FilePath] -> IO ()
+ doOneProgram computeDeps doTest fns = do
+ putStrLn $ "========== Program " ++ (show fns) ++ " ============="
+ deps <- if computeDeps
+ then
+ getDependencies fns
+ else (liftM catMaybes) (mapM findModuleDirect fns)
+ putStrLn $ "deps = " ++ show (fst (unzip deps))
+ {-
+ Note that we scan over the libraries twice:
+ first to gather together all type sigs, then to typecheck them
+ (the latter of which doesn't necessarily have to be done every time.)
+ This is a hack to avoid dealing with circular dependencies.
+ -}
+ -- notice: scan over libraries *and* input modules first, not just libs
+ topEnv <- mkInitialEnv (snd (unzip deps))
+ (_,modules) <- foldM (process doTest) (topEnv,[]) deps
+ let succeeded = length modules
+ putStrLn ("Finished typechecking. Successfully checked "
+ ++ show succeeded)
+ overridden <- override modules
+ result <- evalProgram overridden
+ putStrLn ("Result = " ++ show result)
+ putStrLn "All done\n============================================="
+
+ mkInitialEnv :: [Module] -> IO Menv
+ mkInitialEnv libs = foldM mkTypeEnv initialEnv libs
+
+ mkTypeEnv :: Menv -> Module -> IO Menv
+ mkTypeEnv globalEnv m@(Module mn _ _) =
+ catch (return (envsModule globalEnv m)) handler
+ where handler e = do
+ putStrLn ("WARNING: mkTypeEnv caught an exception " ++ show e
+ ++ " while processing " ++ show mn)
+ return globalEnv
+
+findModuleDirect :: FilePath -> IO (Maybe (FilePath, Module))
+-- kludge to let us run "make libtest" --
+-- this module (in the Cabal package) causes an uncaught exception
+-- from Prelude.chr, which I haven't been able to track down
+findModuleDirect fn | "PackageDescription.hcr" `isSuffixOf` fn = return Nothing
+findModuleDirect fn = do
+ putStrLn $ "Finding " ++ show fn
+ res <- parseCore fn
+ case res of
+ Left err -> error (show err)
+ Right m -> return $ Just (fn,m)
\ No newline at end of file
projects / ghc-hetmet.git / blobdiff