{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE ViewPatterns #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE CPP #-}
{-# LANGUAGE FlexibleContexts #-}
module Language.R.QQ
( r
, rsafe
) where
import Control.Memory.Region
import Control.Monad.R.Class
import qualified Data.Vector.SEXP as Vector
import qualified Foreign.R as R
import qualified Foreign.R.Parse as R
import Foreign.R (SEXP, SomeSEXP(..))
import Foreign.R.Error
import Internal.Error
import Language.R (eval)
import Language.R.Globals (nilValue, globalEnv)
import Language.R.GC (automaticSome)
import Language.R.HExp
import Language.R.Instance
import Language.R.Literal (mkSEXPIO)
import Language.Haskell.TH (Q, runIO)
import Language.Haskell.TH.Quote
import qualified Language.Haskell.TH.Syntax as TH
import qualified Language.Haskell.TH.Lib as TH
import Control.Concurrent (MVar, newMVar, takeMVar, putMVar)
import Control.Exception (throwIO)
import Control.Monad (unless)
import Data.List (intercalate, isSuffixOf)
import qualified Data.Set as Set
import Data.Set (Set)
import Foreign (alloca, peek)
import Foreign.C.String (withCString)
import System.IO.Unsafe (unsafePerformIO)
r :: QuasiQuoter
r :: QuasiQuoter
r = QuasiQuoter :: (String -> Q Exp)
-> (String -> Q Pat)
-> (String -> Q Type)
-> (String -> Q [Dec])
-> QuasiQuoter
QuasiQuoter
{ quoteExp :: String -> Q Exp
quoteExp = \txt :: String
txt -> [| eval =<< $(expQQ txt) |]
, quotePat :: String -> Q Pat
quotePat = String -> String -> Q Pat
forall a. String -> a
unimplemented "quotePat"
, quoteType :: String -> Q Type
quoteType = String -> String -> Q Type
forall a. String -> a
unimplemented "quoteType"
, quoteDec :: String -> Q [Dec]
quoteDec = String -> String -> Q [Dec]
forall a. String -> a
unimplemented "quoteDec"
}
rsafe :: QuasiQuoter
rsafe :: QuasiQuoter
rsafe = QuasiQuoter :: (String -> Q Exp)
-> (String -> Q Pat)
-> (String -> Q Type)
-> (String -> Q [Dec])
-> QuasiQuoter
QuasiQuoter
{ quoteExp :: String -> Q Exp
quoteExp = \txt :: String
txt -> [| unsafePerformIO $ runRegion $ automaticSome =<< eval =<< $(expQQ txt) |]
, quotePat :: String -> Q Pat
quotePat = String -> String -> Q Pat
forall a. String -> a
unimplemented "quotePat"
, quoteType :: String -> Q Type
quoteType = String -> String -> Q Type
forall a. String -> a
unimplemented "quoteType"
, quoteDec :: String -> Q [Dec]
quoteDec = String -> String -> Q [Dec]
forall a. String -> a
unimplemented "quoteDec"
}
qqLock :: MVar ()
qqLock :: MVar ()
qqLock = IO (MVar ()) -> MVar ()
forall a. IO a -> a
unsafePerformIO (IO (MVar ()) -> MVar ()) -> IO (MVar ()) -> MVar ()
forall a b. (a -> b) -> a -> b
$ () -> IO (MVar ())
forall a. a -> IO (MVar a)
newMVar ()
{-# NOINLINE qqLock #-}
parse :: String -> IO (R.SEXP V 'R.Expr)
parse :: String -> IO (SEXP V 'Expr)
parse txt :: String
txt = do
Config -> IO ()
initialize Config
defaultConfig
String -> (CString -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr)
forall a. String -> (CString -> IO a) -> IO a
withCString String
txt ((CString -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr))
-> (CString -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr)
forall a b. (a -> b) -> a -> b
$ \ctxt :: CString
ctxt ->
IO (SEXP V 'String)
-> (SEXP V 'String -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr)
forall (a :: SEXPTYPE) s b.
IO (SEXP V a) -> (SEXP s a -> IO b) -> IO b
R.withProtected (CString -> IO (SEXP V 'String)
R.mkString CString
ctxt) ((SEXP V 'String -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr))
-> (SEXP V 'String -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr)
forall a b. (a -> b) -> a -> b
$ \rtxt :: SEXP V 'String
rtxt ->
(Ptr CInt -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr)
forall a b. Storable a => (Ptr a -> IO b) -> IO b
alloca ((Ptr CInt -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr))
-> (Ptr CInt -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr)
forall a b. (a -> b) -> a -> b
$ \status :: Ptr CInt
status -> do
IO (SEXP V 'Expr)
-> (SEXP V 'Expr -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr)
forall (a :: SEXPTYPE) s b.
IO (SEXP V a) -> (SEXP s a -> IO b) -> IO b
R.withProtected (SEXP V 'String
-> Int -> Ptr CInt -> SEXP V 'Nil -> IO (SEXP V 'Expr)
forall (a :: SEXPTYPE) s.
In a '[ 'Nil, 'String] =>
SEXP s 'String -> Int -> Ptr CInt -> SEXP s a -> IO (SEXP s 'Expr)
R.parseVector SEXP V 'String
rtxt (-1) Ptr CInt
status (SEXP G 'Nil -> SEXP V 'Nil
forall t s (a :: SEXPTYPE). (t <= s) => SEXP s a -> SEXP t a
R.release SEXP G 'Nil
nilValue)) ((SEXP V 'Expr -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr))
-> (SEXP V 'Expr -> IO (SEXP V 'Expr)) -> IO (SEXP V 'Expr)
forall a b. (a -> b) -> a -> b
$ \exprs :: SEXP V 'Expr
exprs -> do
Int
rc <- CInt -> Int
forall a b. (Integral a, Num b) => a -> b
fromIntegral (CInt -> Int) -> IO CInt -> IO Int
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Ptr CInt -> IO CInt
forall a. Storable a => Ptr a -> IO a
peek Ptr CInt
status
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless (ParseStatus
R.PARSE_OK ParseStatus -> ParseStatus -> Bool
forall a. Eq a => a -> a -> Bool
== Int -> ParseStatus
forall a. Enum a => Int -> a
toEnum Int
rc) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
RError -> IO ()
forall e a. Exception e => e -> IO a
throwIO (RError -> IO ()) -> (String -> RError) -> String -> IO ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> RError
RError (String -> IO ()) -> String -> IO ()
forall a b. (a -> b) -> a -> b
$ "Parse error in: " String -> String -> String
forall a. [a] -> [a] -> [a]
++ String
txt
SEXP V 'Expr -> IO (SEXP V 'Expr)
forall (m :: * -> *) a. Monad m => a -> m a
return SEXP V 'Expr
exprs
antiSuffix :: String
antiSuffix :: String
antiSuffix = "_hs"
isAnti :: SEXP s 'R.Char -> Bool
isAnti :: SEXP s 'Char -> Bool
isAnti (SEXP s 'Char -> HExp s 'Char
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> Char (Vector 'Char Word8 -> String
Vector.toString -> String
name)) = String
antiSuffix String -> String -> Bool
forall a. Eq a => [a] -> [a] -> Bool
`isSuffixOf` String
name
isAnti _ = String -> Bool
forall a. HasCallStack => String -> a
error "Impossible"
chop :: String -> String
chop :: String -> String
chop name :: String
name = Int -> String -> String
forall a. Int -> [a] -> [a]
take (String -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length String
name Int -> Int -> Int
forall a. Num a => a -> a -> a
- String -> Int
forall (t :: * -> *) a. Foldable t => t a -> Int
length String
antiSuffix) String
name
collectAntis :: R.SEXP s a -> Set (SEXP s 'R.Char)
collectAntis :: SEXP s a -> Set (SEXP s 'Char)
collectAntis (SEXP s a -> HExp s a
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> Symbol (SEXP s a -> SEXP s 'Char
forall s (a :: SEXPTYPE) (b :: SEXPTYPE). SEXP s a -> SEXP s b
R.unsafeCoerce -> SEXP s 'Char
name) _ _)
| SEXP s 'Char -> Bool
forall s. SEXP s 'Char -> Bool
isAnti SEXP s 'Char
name = SEXP s 'Char -> Set (SEXP s 'Char)
forall a. a -> Set a
Set.singleton SEXP s 'Char
name
collectAntis (SEXP s a -> HExp s a
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> (List sxa :: SEXP s a
sxa sxb :: SEXP s b
sxb sxc :: SEXP s c
sxc)) = do
[Set (SEXP s 'Char)] -> Set (SEXP s 'Char)
forall (f :: * -> *) a. (Foldable f, Ord a) => f (Set a) -> Set a
Set.unions [SEXP s a -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s a
sxa, SEXP s b -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s b
sxb, SEXP s c -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s c
sxc]
collectAntis (SEXP s a -> HExp s a
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> (Lang (SEXP s a -> HExp s a
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> Symbol (SEXP s a -> SEXP s 'Char
forall s (a :: SEXPTYPE) (b :: SEXPTYPE). SEXP s a -> SEXP s b
R.unsafeCoerce -> SEXP s 'Char
name) _ _) sxb :: SEXP s b
sxb))
| SEXP s 'Char -> Bool
forall s. SEXP s 'Char -> Bool
isAnti SEXP s 'Char
name = SEXP s 'Char -> Set (SEXP s 'Char) -> Set (SEXP s 'Char)
forall a. Ord a => a -> Set a -> Set a
Set.insert SEXP s 'Char
name (SEXP s b -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s b
sxb)
collectAntis (SEXP s a -> HExp s a
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> (Lang sxa :: SEXP s a
sxa sxb :: SEXP s b
sxb)) =
Set (SEXP s 'Char) -> Set (SEXP s 'Char) -> Set (SEXP s 'Char)
forall a. Ord a => Set a -> Set a -> Set a
Set.union (SEXP s a -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s a
sxa) (SEXP s b -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s b
sxb)
collectAntis (SEXP s a -> HExp s a
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> (Closure sxa :: SEXP s a
sxa sxb :: SEXP s b
sxb sxc :: SEXP s 'Env
sxc)) =
[Set (SEXP s 'Char)] -> Set (SEXP s 'Char)
forall (f :: * -> *) a. (Foldable f, Ord a) => f (Set a) -> Set a
Set.unions [SEXP s a -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s a
sxa, SEXP s b -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s b
sxb, SEXP s 'Env -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP s 'Env
sxc]
collectAntis (SEXP s a -> HExp s a
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> (Vector _ sxv :: Vector 'Vector (SomeSEXP V)
sxv)) =
[Set (SEXP s 'Char)] -> Set (SEXP s 'Char)
forall (f :: * -> *) a. (Foldable f, Ord a) => f (Set a) -> Set a
Set.unions [SEXP s a -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis (SEXP V a -> SEXP s a
forall s (a :: SEXPTYPE) r. SEXP s a -> SEXP r a
R.unsafeRelease SEXP V a
sx) | SomeSEXP sx :: SEXP V a
sx <- Vector 'Vector (SomeSEXP V) -> [SomeSEXP V]
forall (ty :: SEXPTYPE) a. SVECTOR ty a => Vector ty a -> [a]
Vector.toList Vector 'Vector (SomeSEXP V)
sxv]
collectAntis (SEXP s a -> HExp s a
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> (Expr _ sxv :: Vector 'Expr (SomeSEXP V)
sxv)) =
[Set (SEXP s 'Char)] -> Set (SEXP s 'Char)
forall (f :: * -> *) a. (Foldable f, Ord a) => f (Set a) -> Set a
Set.unions [SEXP s a -> Set (SEXP s 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis (SEXP V a -> SEXP s a
forall s (a :: SEXPTYPE) r. SEXP s a -> SEXP r a
R.unsafeRelease SEXP V a
sx) | SomeSEXP sx :: SEXP V a
sx <- Vector 'Expr (SomeSEXP V) -> [SomeSEXP V]
forall (ty :: SEXPTYPE) a. SVECTOR ty a => Vector ty a -> [a]
Vector.toList Vector 'Expr (SomeSEXP V)
sxv]
collectAntis _ = Set (SEXP s 'Char)
forall a. Set a
Set.empty
expQQ :: String -> Q TH.Exp
expQQ :: String -> Q Exp
expQQ input :: String
input = do
()
_ <- IO () -> Q ()
forall a. IO a -> Q a
runIO (IO () -> Q ()) -> IO () -> Q ()
forall a b. (a -> b) -> a -> b
$ MVar () -> IO ()
forall a. MVar a -> IO a
takeMVar MVar ()
qqLock
SEXP G 'Expr
expr <- IO (SEXP G 'Expr) -> Q (SEXP G 'Expr)
forall a. IO a -> Q a
runIO (IO (SEXP G 'Expr) -> Q (SEXP G 'Expr))
-> IO (SEXP G 'Expr) -> Q (SEXP G 'Expr)
forall a b. (a -> b) -> a -> b
$ SEXP V 'Expr -> IO (SEXP G 'Expr)
forall s (a :: SEXPTYPE). SEXP s a -> IO (SEXP G a)
R.protect (SEXP V 'Expr -> IO (SEXP G 'Expr))
-> IO (SEXP V 'Expr) -> IO (SEXP G 'Expr)
forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< String -> IO (SEXP V 'Expr)
parse String
input
let antis :: [String]
antis = [String
x | (SEXP G 'Char -> HExp G 'Char
forall s (a :: SEXPTYPE). SEXP s a -> HExp s a
hexp -> Char (Vector 'Char Word8 -> String
Vector.toString -> String
x))
<- Set (SEXP G 'Char) -> [SEXP G 'Char]
forall a. Set a -> [a]
Set.toList (SEXP G 'Expr -> Set (SEXP G 'Char)
forall s (a :: SEXPTYPE). SEXP s a -> Set (SEXP s 'Char)
collectAntis SEXP G 'Expr
expr)]
args :: [Q Exp]
args = (String -> Q Exp) -> [String] -> [Q Exp]
forall a b. (a -> b) -> [a] -> [b]
map (String -> Q Exp
TH.dyn (String -> Q Exp) -> (String -> String) -> String -> Q Exp
forall b c a. (b -> c) -> (a -> b) -> a -> c
. String -> String
chop) [String]
antis
closure :: String
closure = "function(" String -> String -> String
forall a. [a] -> [a] -> [a]
++ String -> [String] -> String
forall a. [a] -> [[a]] -> [a]
intercalate "," [String]
antis String -> String -> String
forall a. [a] -> [a] -> [a]
++ "){" String -> String -> String
forall a. [a] -> [a] -> [a]
++ String
input String -> String -> String
forall a. [a] -> [a] -> [a]
++ "}"
z :: Q Exp
z = [| return (R.release nilValue) |]
[Name]
vars <- (String -> Q Name) -> [String] -> Q [Name]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (\_ -> String -> Q Name
TH.newName "x") [String]
antis
Exp
x <- (\body :: Q Exp
body -> (Q Exp -> Q Exp -> Q Exp) -> Q Exp -> [Q Exp] -> Q Exp
forall (t :: * -> *) b a.
Foldable t =>
(b -> a -> b) -> b -> t a -> b
foldl Q Exp -> Q Exp -> Q Exp
TH.appE Q Exp
body [Q Exp]
args) (Q Exp -> Q Exp) -> Q Exp -> Q Exp
forall a b. (a -> b) -> a -> b
$ [Q Pat] -> Q Exp -> Q Exp
TH.lamE ((Name -> Q Pat) -> [Name] -> [Q Pat]
forall a b. (a -> b) -> [a] -> [b]
map Name -> Q Pat
TH.varP [Name]
vars)
[|
let sx = unsafePerformIO $ do
exprs <- parse closure
SomeSEXP e <- R.readVector exprs 0
clos <- R.eval e (R.release globalEnv)
R.unSomeSEXP clos R.preserveObject
return clos
in io $ case sx of
SomeSEXP f ->
R.lcons f =<<
$(foldr (\x xs -> [| R.withProtected $xs $ \cdr -> do
car <- mkSEXPIO $(TH.varE x)
R.lcons car cdr |]) z vars)
|]
IO () -> Q ()
forall a. IO a -> Q a
runIO (IO () -> Q ()) -> IO () -> Q ()
forall a b. (a -> b) -> a -> b
$ Int -> IO ()
R.unprotect 1
IO () -> Q ()
forall a. IO a -> Q a
runIO (IO () -> Q ()) -> IO () -> Q ()
forall a b. (a -> b) -> a -> b
$ MVar () -> () -> IO ()
forall a. MVar a -> a -> IO ()
putMVar MVar ()
qqLock ()
Exp -> Q Exp
forall (f :: * -> *) a. Applicative f => a -> f a
pure Exp
x