{-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE ForeignFunctionInterface #-}
+{-# LANGUAGE CPP #-}
module Mate.Types where
-import Data.Char
import Data.Word
import Data.Int
import qualified Data.Map as M
import qualified Data.ByteString.Lazy as B
-import Codec.Binary.UTF8.String hiding (encode,decode)
-import Foreign.Ptr
-import Foreign.StablePtr
+import Data.IORef
+import System.IO.Unsafe
import JVM.ClassFile
import JVM.Assembler
type MapBB = M.Map BlockID BasicBlock
+data RawMethod = RawMethod {
+ rawMapBB :: MapBB,
+ rawLocals :: Int,
+ rawStackSize :: Int }
-- Word32 = point of method call in generated code
-- MethodInfo = relevant information about callee
-type TrapMap = M.Map Word32 TrapInfo
+type TrapMap = M.Map Word32 TrapCause
-data TrapInfo =
- MI MethodInfo | -- for static calls
- VI MethodInfo | -- for virtual calls
- SFI StaticFieldInfo
+data TrapCause =
+ StaticMethod MethodInfo | -- for static calls
+ VirtualMethod Bool MethodInfo | -- for virtual calls
+ InterfaceMethod Bool MethodInfo | -- for interface calls
+ StaticField StaticFieldInfo deriving Show
data StaticFieldInfo = StaticFieldInfo {
sfiClassName :: B.ByteString,
- sfiFieldName :: B.ByteString }
+ sfiFieldName :: B.ByteString } deriving Show
methSignature :: MethodSignature
} deriving (Eq, Ord)
--- TODO(bernhard): not really efficient. also, outsource that to hs-java
--- deriving should be enough?
-instance Ord MethodSignature where
- compare (MethodSignature args_a ret_a) (MethodSignature args_b ret_b)
- | cmp_args /= EQ = cmp_args
- | otherwise = (show ret_a) `compare` (show ret_b)
- where
- cmp_args = (show args_a) `compare` (show args_b)
-
instance Show MethodInfo where
show (MethodInfo method c sig) =
- (toString c) ++ "." ++ (toString method) ++ "." ++ (show sig)
+ toString c ++ "." ++ toString method ++ "." ++ show sig
data ClassInfo = ClassInfo {
ciName :: B.ByteString,
- ciFile :: Class Resolved,
+ ciFile :: Class Direct,
ciStaticMap :: FieldMap,
ciFieldMap :: FieldMap,
ciMethodMap :: FieldMap,
-- java strings are allocated only once, therefore we
-- use a hashmap to store the address for a String
-type StringsMap = M.Map B.ByteString Word32
+type StringMap = M.Map B.ByteString Word32
-- map "methodtable addr" to "classname"
type VirtualMap = M.Map Word32 B.ByteString
-toString :: B.ByteString -> String
-toString bstr = decodeString $ map (chr . fromIntegral) $ B.unpack bstr
-
-
--- those functions are for the "global map hax"
--- TODO(bernhard): other solution please
-foreign import ccall "get_trapmap"
- get_trapmap :: IO (Ptr ())
-
-foreign import ccall "set_trapmap"
- set_trapmap :: Ptr () -> IO ()
+-- store each parsed Interface upon first loading
+type InterfaceMap = M.Map B.ByteString (Class Direct)
-foreign import ccall "get_methodmap"
- get_methodmap :: IO (Ptr ())
+-- store offset for each <Interface><Method><Signature> pair
+type InterfaceMethodMap = M.Map B.ByteString Word32
-foreign import ccall "set_methodmap"
- set_methodmap :: Ptr () -> IO ()
-foreign import ccall "get_classmap"
- get_classmap :: IO (Ptr ())
-
-foreign import ccall "set_classmap"
- set_classmap :: Ptr () -> IO ()
-
-foreign import ccall "get_virtualmap"
- get_virtualmap :: IO (Ptr ())
-
-foreign import ccall "set_virtualmap"
- set_virtualmap :: Ptr () -> IO ()
+{-
+toString :: B.ByteString -> String
+toString bstr = decodeString $ map (chr . fromIntegral) $ B.unpack bstr
+-}
-foreign import ccall "get_stringsmap"
- get_stringsmap :: IO (Ptr ())
+-- better solutions for a global map hack are welcome! (typeclasses, TH, ...?)
-foreign import ccall "set_stringsmap"
- set_stringsmap :: Ptr () -> IO ()
+data MateCtx = MateCtx {
+ ctxMethodMap :: MethodMap,
+ ctxTrapMap :: TrapMap,
+ ctxClassMap :: ClassMap,
+ ctxVirtualMap :: VirtualMap,
+ ctxStringMap :: StringMap,
+ ctxInterfaceMap :: InterfaceMap,
+ ctxInterfaceMethodMap :: InterfaceMethodMap }
--- TODO(bernhard): make some typeclass magic 'n stuff
--- or remove that sh**
-methodmap2ptr :: MethodMap -> IO (Ptr ())
-methodmap2ptr methodmap = do
- ptr_methodmap <- newStablePtr methodmap
- return $ castStablePtrToPtr ptr_methodmap
+emptyMateCtx :: MateCtx
+emptyMateCtx = MateCtx M.empty M.empty M.empty M.empty M.empty M.empty M.empty
-ptr2methodmap :: Ptr () -> IO MethodMap
-ptr2methodmap methodmap = deRefStablePtr $ ((castPtrToStablePtr methodmap) :: StablePtr MethodMap)
+mateCtx :: IORef MateCtx
+{-# NOINLINE mateCtx #-}
+mateCtx = unsafePerformIO $ newIORef emptyMateCtx
-trapmap2ptr :: TrapMap -> IO (Ptr ())
-trapmap2ptr trapmap = do
- ptr_trapmap <- newStablePtr trapmap
- return $ castStablePtrToPtr ptr_trapmap
+-- TODO(bernhard): if we ever have thread support, don't forget MVars
+#define SETMAP(name) set##name :: name -> IO (); \
+ set##name m = do ctx <- readIORef mateCtx; \
+ writeIORef mateCtx $ ctx { ctx##name = m };
-ptr2trapmap :: Ptr () -> IO TrapMap
-ptr2trapmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr trapmap)
+#define GETMAP(name) get##name :: IO name ; \
+ get##name = do ctx <- readIORef mateCtx; \
+ return $ ctx##name ctx;
-classmap2ptr :: ClassMap -> IO (Ptr ())
-classmap2ptr cmap = do
- ptr_cmap <- newStablePtr cmap
- return $ castStablePtrToPtr ptr_cmap
+SETMAP(MethodMap);
+GETMAP(MethodMap)
-ptr2classmap :: Ptr () -> IO ClassMap
-ptr2classmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr cmap)
+SETMAP(TrapMap)
+GETMAP(TrapMap)
-virtualmap2ptr :: VirtualMap -> IO (Ptr ())
-virtualmap2ptr cmap = do
- ptr_cmap <- newStablePtr cmap
- return $ castStablePtrToPtr ptr_cmap
+SETMAP(ClassMap)
+GETMAP(ClassMap)
-ptr2virtualmap :: Ptr () -> IO VirtualMap
-ptr2virtualmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr cmap)
+SETMAP(VirtualMap)
+GETMAP(VirtualMap)
+SETMAP(StringMap)
+GETMAP(StringMap)
-stringsmap2ptr :: StringsMap -> IO (Ptr ())
-stringsmap2ptr cmap = do
- ptr_cmap <- newStablePtr cmap
- return $ castStablePtrToPtr ptr_cmap
+SETMAP(InterfaceMap)
+GETMAP(InterfaceMap)
-ptr2stringsmap :: Ptr () -> IO StringsMap
-ptr2stringsmap vmap = deRefStablePtr $ ((castPtrToStablePtr vmap) :: StablePtr cmap)
+SETMAP(InterfaceMethodMap)
+GETMAP(InterfaceMethodMap)
projects / mate.git / blobdiff