module Development.Shake.ATS (
cgen
, cgenPretty
, cleanATS
, atsBin
, atsLex
, ghcExport
, patsHome
, Version (..)
) where
import Control.Monad
import Control.Monad.IO.Class
import Data.Bool (bool)
import Data.Either (fromRight)
import Data.List (intercalate)
import Data.Maybe (fromMaybe)
import Data.Semigroup (Semigroup (..))
import qualified Data.Text.Lazy as TL
import Development.Shake
import Development.Shake.FilePath
import Language.ATS
import Language.ATS.Generate
import System.Directory (copyFile, createDirectoryIfMissing)
import System.Exit (ExitCode (ExitSuccess))
newtype Version = Version [Integer]
deriving (Eq)
instance Show Version where
show (Version is) = intercalate "." (show <$> is)
genATS :: FilePath -> FilePath -> Rules ()
genATS src target =
target %> \out -> liftIO $ do
contents <- readFile src
writeFile out (generateATS contents)
ghcExport :: String -> Rules ()
ghcExport m =
[ m ++ "_stub.h", m ++ ".o" ] &%> \[_,out] ->
command [Cwd (takeDirectory out)] "ghc" ["-c", "-O", takeBaseName out -<.> "hs" ]
pkgHome :: Action String
pkgHome = fromMaybe "/usr/local/" <$> mh
where mh = fmap (++ "/.atspkg/") <$> getEnv "HOME"
patsHome :: Version -> Action String
patsHome v = fmap (++ (show v ++ "/")) pkgHome
atsCommand :: CmdResult r => Version -> Version -> String -> String -> Action r
atsCommand v v' sourceFile out = do
h <- patsHome v'
let home = h ++ "lib/ats2-postiats-" ++ show v
let atsArgs = [EchoStderr False, AddEnv "PATSHOME" home]
patsc = home ++ "/bin/patsopt"
command atsArgs patsc ["--output", out, "-dd", sourceFile, "-cc"]
gcFlag :: Bool -> String
gcFlag False = "-DATS_MEMALLOC_LIBC"
gcFlag True = "-DATS_MEMALLOC_GCBDW"
copySources :: Version -> Version -> [FilePath] -> Action ()
copySources v v' sources =
forM_ sources $ \dep -> do
h <- patsHome v'
let home = h ++ "lib/ats2-postiats-" ++ show v
liftIO $ createDirectoryIfMissing True (home ++ "/" ++ takeDirectory dep)
liftIO $ copyFile dep (home ++ "/" ++ dep)
patsHomeLocs :: Int -> String
patsHomeLocs n = intercalate ":" $ (<> ".atspkg/contrib") . ("./" <>) <$> g
where g = [ join $ replicate i "../" | i <- [1..n] ]
atsBin :: String
-> [String]
-> Version
-> Version
-> Bool
-> [String]
-> String
-> [String]
-> [(String, String)]
-> String
-> Rules ()
atsBin cc cFlags v v' gc libs sourceFile hs atg out = do
unless (null atg) $
mapM_ (uncurry genATS) atg
unless (null hs) $
mapM_ ghcExport ((-<.> "") <$> hs)
out %> \_ -> do
sources <- transitiveDeps [sourceFile]
h <- patsHome v'
h' <- pkgHome
let home = h ++ "lib/ats2-postiats-" ++ show v
need (sources ++ hs)
copySources v v' sources
cmd_ ["mkdir", "-p", dropDirectory1 out]
path <- fromMaybe "" <$> getEnv "PATH"
let toLibs = fmap ("-l" <>)
let libs' = bool libs ("gc" : libs) gc
command
[EchoStderr False, AddEnv "PATSHOME" home, AddEnv "PATH" (home ++ "/bin:" ++ path), AddEnv "PATSHOMELOCS" $ patsHomeLocs 5]
(home ++ "/bin/patscc")
([sourceFile, "-atsccomp", cc ++ " -I" ++ h ++ "/ccomp/runtime/ -I" ++ h ++ " -L" ++ h' ++ "/lib", gcFlag gc, "-o", out, "-cleanaft"] <> cFlags <> toLibs libs')
atsLex :: Rules ()
atsLex =
"*.dats" %> \out -> do
lats <- liftIO $ readFile (out -<.> "lats")
(Stdout contents) <- command [Stdin lats] "atslex" []
liftIO $ writeFile out contents
cleanATS :: Rules ()
cleanATS =
"clean" ~> do
removeFilesAfter "." ["//*.c", "//tags"]
removeFilesAfter ".atspkg" ["//*"]
removeFilesAfter "ats-deps" ["//*"]
handleSource :: Version -> Version -> FilePath -> Action ()
handleSource v v' sourceFile = do
sources <- transitiveDeps [sourceFile]
need sources
copySources v v' sources
cgen :: Version
-> Version
-> FilePath
-> Rules ()
cgen v v' dir =
"//*.c" %> \out -> do
let sourceFile = dir ++ "/" ++ (takeBaseName out -<.> "dats")
handleSource v v' sourceFile
atsCommand v v' sourceFile out
fixDir :: FilePath -> String -> String
fixDir p =
TL.unpack
. TL.replace (TL.pack "./") (TL.pack $ p ++ "/")
. TL.replace (TL.pack "../") (TL.pack $ joinPath (init $ splitPath p) ++ "/")
. TL.pack
trim :: String -> String
trim = init . drop 1
transitiveDeps :: [FilePath] -> Action [FilePath]
transitiveDeps [] = pure []
transitiveDeps ps = fmap join $ forM ps $ \p -> do
contents <- liftIO $ readFile p
let ats = fromRight mempty . parseATS . lexATS $ contents
let dir = takeDirectory p
deps <- filterM doesFileExist $ fixDir dir . trim <$> getDependencies ats
deps' <- transitiveDeps deps
pure $ (p:deps) ++ deps'
cgenPretty :: Version
-> Version
-> FilePath
-> Rules ()
cgenPretty v v' dir =
"//*.c" %> \out -> do
let sourceFile = dir ++ "/" ++ (takeBaseName out -<.> "dats")
handleSource v v' sourceFile
(Exit c, Stderr err) :: (Exit, Stderr String) <- atsCommand v v' sourceFile out
cmd_ [Stdin err] Shell "pats-filter"
if c /= ExitSuccess
then error "patscc failure"
else pure ()