--- a/tools/pas2c.hs Sun Nov 04 06:11:39 2012 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1085 +0,0 @@
-{-# LANGUAGE ScopedTypeVariables #-}
-module Pas2C where
-
-import Text.PrettyPrint.HughesPJ
-import Data.Maybe
-import Data.Char
-import Text.Parsec.Prim hiding (State)
-import Control.Monad.State
-import System.IO
-import System.Directory
-import Control.Monad.IO.Class
-import PascalPreprocessor
-import Control.Exception
-import System.IO.Error
-import qualified Data.Map as Map
-import qualified Data.Set as Set
-import Data.List (find)
-import Numeric
-
-import PascalParser(pascalUnit)
-import PascalUnitSyntaxTree
-
-
-data InsertOption =
- IOInsert
- | IOInsertWithType Doc
- | IOLookup
- | IOLookupLast
- | IOLookupFunction Int
- | IODeferred
-
-data Record = Record
- {
- lcaseId :: String,
- baseType :: BaseType,
- typeDecl :: Doc
- }
- deriving Show
-type Records = Map.Map String [Record]
-data RenderState = RenderState
- {
- currentScope :: Records,
- lastIdentifier :: String,
- lastType :: BaseType,
- lastIdTypeDecl :: Doc,
- stringConsts :: [(String, String)],
- uniqCounter :: Int,
- toMangle :: Set.Set String,
- currentUnit :: String,
- currentFunctionResult :: String,
- namespaces :: Map.Map String Records
- }
-
-rec2Records = map (\(a, b) -> Record a b empty)
-
-emptyState = RenderState Map.empty "" BTUnknown empty [] 0 Set.empty "" ""
-
-getUniq :: State RenderState Int
-getUniq = do
- i <- gets uniqCounter
- modify(\s -> s{uniqCounter = uniqCounter s + 1})
- return i
-
-addStringConst :: String -> State RenderState Doc
-addStringConst str = do
- strs <- gets stringConsts
- let a = find ((==) str . snd) strs
- if isJust a then
- do
- modify (\s -> s{lastType = BTString})
- return . text . fst . fromJust $ a
- else
- do
- i <- getUniq
- let sn = "__str" ++ show i
- modify (\s -> s{lastType = BTString, stringConsts = (sn, str) : strs})
- return $ text sn
-
-escapeStr :: String -> String
-escapeStr = foldr escapeChar []
-
-escapeChar :: Char -> ShowS
-escapeChar '"' s = "\\\"" ++ s
-escapeChar '\\' s = "\\\\" ++ s
-escapeChar a s = a : s
-
-strInit :: String -> Doc
-strInit a = text "STRINIT" <> parens (doubleQuotes (text $ escapeStr a))
-
-renderStringConsts :: State RenderState Doc
-renderStringConsts = liftM (vcat . map (\(a, b) -> text "static const string255" <+> (text a) <+> text "=" <+> strInit b <> semi))
- $ gets stringConsts
-
-docToLower :: Doc -> Doc
-docToLower = text . map toLower . render
-
-pas2C :: String -> String -> String -> String -> IO ()
-pas2C fn inputPath alternateInputPath outputPath = do
- s <- flip execStateT initState $ f fn
- renderCFiles s outputPath
- where
- printLn = liftIO . hPutStrLn stdout
- print = liftIO . hPutStr stdout
- initState = Map.empty
- f :: String -> StateT (Map.Map String PascalUnit) IO ()
- f fileName = do
- processed <- gets $ Map.member fileName
- unless processed $ do
- print ("Preprocessing '" ++ fileName ++ ".pas'... ")
- fc' <- liftIO
- $ tryJust (guard . isDoesNotExistError)
- $ preprocess inputPath alternateInputPath (fileName ++ ".pas")
- case fc' of
- (Left a) -> do
- modify (Map.insert fileName (System []))
- printLn "doesn't exist"
- (Right fc) -> do
- print "ok, parsing... "
- let ptree = parse pascalUnit fileName fc
- case ptree of
- (Left a) -> do
- liftIO $ writeFile (outputPath ++ "preprocess.out") fc
- printLn $ show a ++ "\nsee preprocess.out for preprocessed source"
- fail "stop"
- (Right a) -> do
- printLn "ok"
- modify (Map.insert fileName a)
- mapM_ f (usesFiles a)
-
-
-renderCFiles :: Map.Map String PascalUnit -> String -> IO ()
-renderCFiles units outputPath = do
- let u = Map.toList units
- let nss = Map.map (toNamespace nss) units
- --hPutStrLn stderr $ "Units: " ++ (show . Map.keys . Map.filter (not . Map.null) $ nss)
- --writeFile "pas2c.log" $ unlines . map (\t -> show (fst t) ++ "\n" ++ (unlines . map ((:) '\t' . show) . snd $ t)) . Map.toList $ nss
- mapM_ (toCFiles outputPath nss) u
- where
- toNamespace :: Map.Map String Records -> PascalUnit -> Records
- toNamespace nss (System tvs) =
- currentScope $ execState f (emptyState nss)
- where
- f = do
- checkDuplicateFunDecls tvs
- mapM_ (tvar2C True False True False) tvs
- toNamespace nss (Redo tvs) = -- functions that are re-implemented, add prefix to all of them
- currentScope $ execState f (emptyState nss){currentUnit = "fpcrtl_"}
- where
- f = do
- checkDuplicateFunDecls tvs
- mapM_ (tvar2C True False True False) tvs
- toNamespace _ (Program {}) = Map.empty
- toNamespace nss (Unit (Identifier i _) interface _ _ _) =
- currentScope $ execState (interface2C interface True) (emptyState nss){currentUnit = map toLower i ++ "_"}
-
-
-withState' :: (RenderState -> RenderState) -> State RenderState a -> State RenderState a
-withState' f sf = do
- st <- liftM f get
- let (a, s) = runState sf st
- modify(\st -> st{
- lastType = lastType s
- , uniqCounter = uniqCounter s
- , stringConsts = stringConsts s
- })
- return a
-
-withLastIdNamespace f = do
- li <- gets lastIdentifier
- nss <- gets namespaces
- withState' (\st -> st{currentScope = fromMaybe Map.empty $ Map.lookup li (namespaces st)}) f
-
-withRecordNamespace :: String -> [Record] -> State RenderState Doc -> State RenderState Doc
-withRecordNamespace _ [] = error "withRecordNamespace: empty record"
-withRecordNamespace prefix recs = withState' f
- where
- f st = st{currentScope = Map.unionWith un records (currentScope st), currentUnit = ""}
- records = Map.fromList $ map (\(Record a b d) -> (map toLower a, [Record (prefix ++ a) b d])) recs
- un [a] b = a : b
-
-toCFiles :: String -> Map.Map String Records -> (String, PascalUnit) -> IO ()
-toCFiles _ _ (_, System _) = return ()
-toCFiles _ _ (_, Redo _) = return ()
-toCFiles outputPath ns p@(fn, pu) = do
- hPutStrLn stdout $ "Rendering '" ++ fn ++ "'..."
- toCFiles' p
- where
- toCFiles' (fn, p@(Program {})) = writeFile (outputPath ++ fn ++ ".c") $ "#include \"fpcrtl.h\"\n" ++ (render2C initialState . pascal2C) p
- toCFiles' (fn, (Unit unitId@(Identifier i _) interface implementation _ _)) = do
- let (a, s) = runState (id2C IOInsert (setBaseType BTUnit unitId) >> interface2C interface True) initialState{currentUnit = map toLower i ++ "_"}
- (a', s') = runState (id2C IOInsert (setBaseType BTUnit unitId) >> interface2C interface False) initialState{currentUnit = map toLower i ++ "_"}
- writeFile (outputPath ++ fn ++ ".h") $ "#pragma once\n\n#include \"pas2c.h\"\n\n" ++ (render (a $+$ text ""))
- writeFile (outputPath ++ fn ++ ".c") $ "#include \"fpcrtl.h\"\n\n#include \"" ++ fn ++ ".h\"\n" ++ render (a' $+$ text "") ++ (render2C s . implementation2C) implementation
- initialState = emptyState ns
-
- render2C :: RenderState -> State RenderState Doc -> String
- render2C a = render . ($+$ empty) . flip evalState a
-
-
-usesFiles :: PascalUnit -> [String]
-usesFiles (Program _ (Implementation uses _) _) = ["pas2cSystem", "pas2cRedo"] ++ uses2List uses
-usesFiles (Unit _ (Interface uses1 _) (Implementation uses2 _) _ _) = ["pas2cSystem", "pas2cRedo"] ++ uses2List uses1 ++ uses2List uses2
-usesFiles (System {}) = []
-usesFiles (Redo {}) = []
-
-pascal2C :: PascalUnit -> State RenderState Doc
-pascal2C (Unit _ interface implementation init fin) =
- liftM2 ($+$) (interface2C interface True) (implementation2C implementation)
-
-pascal2C (Program _ implementation mainFunction) = do
- impl <- implementation2C implementation
- [main] <- tvar2C True False True True (FunctionDeclaration (Identifier "main" BTInt) False (SimpleType $ Identifier "int" BTInt) [VarDeclaration False False ([Identifier "argc" BTInt], SimpleType (Identifier "Integer" BTInt)) Nothing, VarDeclaration False False ([Identifier "argv" BTUnknown], SimpleType (Identifier "PPChar" BTUnknown)) Nothing] (Just (TypesAndVars [], mainFunction)))
- return $ impl $+$ main
-
-
--- the second bool indicates whether do normal interface translation or generate variable declarations
--- that will be inserted into implementation files
-interface2C :: Interface -> Bool -> State RenderState Doc
-interface2C (Interface uses tvars) True = do
- u <- uses2C uses
- tv <- typesAndVars2C True True True tvars
- r <- renderStringConsts
- return (u $+$ r $+$ tv)
-interface2C (Interface uses tvars) False = do
- u <- uses2C uses
- tv <- typesAndVars2C True False False tvars
- r <- renderStringConsts
- return tv
-
-implementation2C :: Implementation -> State RenderState Doc
-implementation2C (Implementation uses tvars) = do
- u <- uses2C uses
- tv <- typesAndVars2C True False True tvars
- r <- renderStringConsts
- return (u $+$ r $+$ tv)
-
-checkDuplicateFunDecls :: [TypeVarDeclaration] -> State RenderState ()
-checkDuplicateFunDecls tvs =
- modify $ \s -> s{toMangle = Map.keysSet . Map.filter (> 1) . foldr ins initMap $ tvs}
- where
- initMap = Map.empty
- --initMap = Map.fromList [("reset", 2)]
- ins (FunctionDeclaration (Identifier i _) _ _ _ _) m = Map.insertWith (+) (map toLower i) 1 m
- ins _ m = m
-
--- the second bool indicates whether declare variable as extern or not
--- the third bool indicates whether include types or not
-
-typesAndVars2C :: Bool -> Bool -> Bool -> TypesAndVars -> State RenderState Doc
-typesAndVars2C b externVar includeType(TypesAndVars ts) = do
- checkDuplicateFunDecls ts
- liftM (vcat . map (<> semi) . concat) $ mapM (tvar2C b externVar includeType False) ts
-
-setBaseType :: BaseType -> Identifier -> Identifier
-setBaseType bt (Identifier i _) = Identifier i bt
-
-uses2C :: Uses -> State RenderState Doc
-uses2C uses@(Uses unitIds) = do
-
- mapM_ injectNamespace (Identifier "pas2cSystem" undefined : unitIds)
- mapM_ injectNamespace (Identifier "pas2cRedo" undefined : unitIds)
- mapM_ (id2C IOInsert . setBaseType BTUnit) unitIds
- return $ vcat . map (\i -> text $ "#include \"" ++ i ++ ".h\"") $ uses2List uses
- where
- injectNamespace (Identifier i _) = do
- getNS <- gets (flip Map.lookup . namespaces)
- modify (\s -> s{currentScope = Map.unionWith (++) (fromMaybe Map.empty (getNS i)) $ currentScope s})
-
-uses2List :: Uses -> [String]
-uses2List (Uses ids) = map (\(Identifier i _) -> i) ids
-
-
-setLastIdValues vv = (\s -> s{lastType = baseType vv, lastIdentifier = lcaseId vv, lastIdTypeDecl = typeDecl vv})
-
-id2C :: InsertOption -> Identifier -> State RenderState Doc
-id2C IOInsert i = id2C (IOInsertWithType empty) i
-id2C (IOInsertWithType d) (Identifier i t) = do
- ns <- gets currentScope
- tom <- gets (Set.member n . toMangle)
- cu <- gets currentUnit
- let (i', t') = case (t, tom) of
- (BTFunction _ p _, True) -> (cu ++ i ++ ('_' : show p), t)
- (BTFunction _ _ _, _) -> (cu ++ i, t)
- (BTVarParam t', _) -> ('(' : '*' : i ++ ")" , t')
- _ -> (i, t)
- modify (\s -> s{currentScope = Map.insertWith (++) n [Record i' t' d] (currentScope s), lastIdentifier = n})
- return $ text i'
- where
- n = map toLower i
-
-id2C IOLookup i = id2CLookup head i
-id2C IOLookupLast i = id2CLookup last i
-id2C (IOLookupFunction params) (Identifier i t) = do
- let i' = map toLower i
- v <- gets $ Map.lookup i' . currentScope
- lt <- gets lastType
- if isNothing v then
- error $ "Not defined: '" ++ i' ++ "'\n" ++ show lt ++ "\nwith num of params = " ++ show params ++ "\n" ++ show v
- else
- let vv = fromMaybe (head $ fromJust v) . find checkParam $ fromJust v in
- modify (setLastIdValues vv) >> (return . text . lcaseId $ vv)
- where
- checkParam (Record _ (BTFunction _ p _) _) = p == params
- checkParam _ = False
-id2C IODeferred (Identifier i t) = do
- let i' = map toLower i
- v <- gets $ Map.lookup i' . currentScope
- if (isNothing v) then
- modify (\s -> s{lastType = BTUnknown, lastIdentifier = i}) >> return (text i)
- else
- let vv = head $ fromJust v in modify (setLastIdValues vv) >> (return . text . lcaseId $ vv)
-
-id2CLookup :: ([Record] -> Record) -> Identifier -> State RenderState Doc
-id2CLookup f (Identifier i t) = do
- let i' = map toLower i
- v <- gets $ Map.lookup i' . currentScope
- lt <- gets lastType
- if isNothing v then
- error $ "Not defined: '" ++ i' ++ "'\n" ++ show lt
- else
- let vv = f $ fromJust v in modify (setLastIdValues vv) >> (return . text . lcaseId $ vv)
-
-
-id2CTyped :: TypeDecl -> Identifier -> State RenderState Doc
-id2CTyped = id2CTyped2 Nothing
-
-id2CTyped2 :: Maybe Doc -> TypeDecl -> Identifier -> State RenderState Doc
-id2CTyped2 md t (Identifier i _) = do
- tb <- resolveType t
- case (t, tb) of
- (_, BTUnknown) -> do
- error $ "id2CTyped: type BTUnknown for " ++ show i ++ "\ntype: " ++ show t
- (SimpleType {}, BTRecord _ r) -> do
- ts <- type2C t
- id2C (IOInsertWithType $ ts empty) (Identifier i (BTRecord (render $ ts empty) r))
- (_, BTRecord _ r) -> do
- ts <- type2C t
- id2C (IOInsertWithType $ ts empty) (Identifier i (BTRecord i r))
- _ -> case md of
- Nothing -> id2C IOInsert (Identifier i tb)
- Just ts -> id2C (IOInsertWithType ts) (Identifier i tb)
-
-
-resolveType :: TypeDecl -> State RenderState BaseType
-resolveType st@(SimpleType (Identifier i _)) = do
- let i' = map toLower i
- v <- gets $ Map.lookup i' . currentScope
- if isJust v then return . baseType . head $ fromJust v else return $ f i'
- where
- f "integer" = BTInt
- f "pointer" = BTPointerTo BTVoid
- f "boolean" = BTBool
- f "float" = BTFloat
- f "char" = BTChar
- f "string" = BTString
- f _ = error $ "Unknown system type: " ++ show st
-resolveType (PointerTo (SimpleType (Identifier i _))) = return . BTPointerTo $ BTUnresolved (map toLower i)
-resolveType (PointerTo t) = liftM BTPointerTo $ resolveType t
-resolveType (RecordType tv mtvs) = do
- tvs <- mapM f (concat $ tv : fromMaybe [] mtvs)
- return . BTRecord "" . concat $ tvs
- where
- f :: TypeVarDeclaration -> State RenderState [(String, BaseType)]
- f (VarDeclaration _ _ (ids, td) _) = mapM (\(Identifier i _) -> liftM ((,) i) $ resolveType td) ids
-resolveType (ArrayDecl (Just i) t) = do
- t' <- resolveType t
- return $ BTArray i BTInt t'
-resolveType (ArrayDecl Nothing t) = liftM (BTArray RangeInfinite BTInt) $ resolveType t
-resolveType (FunctionType t a) = liftM (BTFunction False (length a)) $ resolveType t
-resolveType (DeriveType (InitHexNumber _)) = return BTInt
-resolveType (DeriveType (InitNumber _)) = return BTInt
-resolveType (DeriveType (InitFloat _)) = return BTFloat
-resolveType (DeriveType (InitString _)) = return BTString
-resolveType (DeriveType (InitBinOp {})) = return BTInt
-resolveType (DeriveType (InitPrefixOp _ e)) = initExpr2C e >> gets lastType
-resolveType (DeriveType (BuiltInFunction{})) = return BTInt
-resolveType (DeriveType (InitReference (Identifier{}))) = return BTBool -- TODO: derive from actual type
-resolveType (DeriveType _) = return BTUnknown
-resolveType (String _) = return BTString
-resolveType VoidType = return BTVoid
-resolveType (Sequence ids) = return $ BTEnum $ map (\(Identifier i _) -> map toLower i) ids
-resolveType (RangeType _) = return $ BTVoid
-resolveType (Set t) = liftM BTSet $ resolveType t
-resolveType (VarParamType t) = liftM BTVarParam $ resolveType t
-
-
-resolve :: String -> BaseType -> State RenderState BaseType
-resolve s (BTUnresolved t) = do
- v <- gets $ Map.lookup t . currentScope
- if isJust v then
- resolve s . baseType . head . fromJust $ v
- else
- error $ "Unknown type " ++ show t ++ "\n" ++ s
-resolve _ t = return t
-
-fromPointer :: String -> BaseType -> State RenderState BaseType
-fromPointer s (BTPointerTo t) = resolve s t
-fromPointer s t = do
- error $ "Dereferencing from non-pointer type " ++ show t ++ "\n" ++ s
-
-
-functionParams2C params = liftM (hcat . punctuate comma . concat) $ mapM (tvar2C False False True True) params
-
-numberOfDeclarations :: [TypeVarDeclaration] -> Int
-numberOfDeclarations = sum . map cnt
- where
- cnt (VarDeclaration _ _ (ids, _) _) = length ids
- cnt _ = 1
-
-hasPassByReference :: [TypeVarDeclaration] -> Bool
-hasPassByReference = or . map isVar
- where
- isVar (VarDeclaration v _ (_, _) _) = v
- isVar _ = error $ "hasPassByReference called not on function parameters"
-
-toIsVarList :: [TypeVarDeclaration] -> [Bool]
-toIsVarList = concatMap isVar
- where
- isVar (VarDeclaration v _ (p, _) _) = replicate (length p) v
- isVar _ = error $ "toIsVarList called not on function parameters"
-
-
-funWithVarsToDefine :: String -> [TypeVarDeclaration] -> Doc
-funWithVarsToDefine n params = text "#define" <+> text n <> parens abc <+> text (n ++ "__vars") <> parens cparams
- where
- abc = hcat . punctuate comma . map (char . fst) $ ps
- cparams = hcat . punctuate comma . map (\(c, v) -> if v then char '&' <> parens (char c) else char c) $ ps
- ps = zip ['a'..] (toIsVarList params)
-
-fun2C :: Bool -> String -> TypeVarDeclaration -> State RenderState [Doc]
-fun2C _ _ (FunctionDeclaration name inline returnType params Nothing) = do
- t <- type2C returnType
- t'<- gets lastType
- p <- withState' id $ functionParams2C params
- n <- liftM render . id2C IOInsert $ setBaseType (BTFunction hasVars (numberOfDeclarations params) t') name
- let decor = if inline then text "inline" else empty
- if hasVars then
- return [funWithVarsToDefine n params $+$ decor <+> t empty <+> text (n ++ "__vars") <> parens p]
- else
- return [decor <+> t empty <+> text n <> parens p]
- where
- hasVars = hasPassByReference params
-
-
-fun2C True rv (FunctionDeclaration name@(Identifier i _) inline returnType params (Just (tvars, phrase))) = do
- let res = docToLower $ text rv <> text "_result"
- t <- type2C returnType
- t'<- gets lastType
-
- notDeclared <- liftM isNothing . gets $ Map.lookup (map toLower i) . currentScope
-
- n <- liftM render . id2C IOInsert $ setBaseType (BTFunction hasVars (numberOfDeclarations params) t') name
-
- let isVoid = case returnType of
- VoidType -> True
- _ -> False
-
- (p, ph) <- withState' (\st -> st{currentScope = Map.insertWith un (map toLower rv) [Record (render res) t' empty] $ currentScope st
- , currentFunctionResult = if isVoid then [] else render res}) $ do
- p <- functionParams2C params
- ph <- liftM2 ($+$) (typesAndVars2C False False True tvars) (phrase2C' phrase)
- return (p, ph)
-
- let phrasesBlock = if isVoid then ph else t empty <+> res <> semi $+$ ph $+$ text "return" <+> res <> semi
- let define = if hasVars then text "#ifndef" <+> text n $+$ funWithVarsToDefine n params $+$ text "#endif" else empty
- let decor = if inline then text "inline" else empty
- return [
- define
- $+$
- --(if notDeclared && hasVars then funWithVarsToDefine n params else empty) $+$
- decor <+> t empty <+> text (if hasVars then n ++ "__vars" else n) <> parens p
- $+$
- text "{"
- $+$
- nest 4 phrasesBlock
- $+$
- text "}"]
- where
- phrase2C' (Phrases p) = liftM vcat $ mapM phrase2C p
- phrase2C' p = phrase2C p
- un [a] b = a : b
- hasVars = hasPassByReference params
-
-fun2C False _ (FunctionDeclaration (Identifier name _) _ _ _ _) = error $ "nested functions not allowed: " ++ name
-fun2C _ tv _ = error $ "fun2C: I don't render " ++ show tv
-
--- the second bool indicates whether declare variable as extern or not
--- the third bool indicates whether include types or not
--- the fourth bool indicates whether ignore initialization or not (basically for dynamic arrays since we cannot do initialization in function params)
-tvar2C :: Bool -> Bool -> Bool -> Bool -> TypeVarDeclaration -> State RenderState [Doc]
-tvar2C b _ includeType _ f@(FunctionDeclaration (Identifier name _) _ _ _ _) = do
- t <- fun2C b name f
- if includeType then return t else return []
-tvar2C _ _ includeType _ td@(TypeDeclaration i' t) = do
- i <- id2CTyped t i'
- tp <- type2C t
- return $ if includeType then [text "typedef" <+> tp i] else []
-
-tvar2C _ _ _ _ (VarDeclaration True _ (ids, t) Nothing) = do
- t' <- liftM ((empty <+>) . ) $ type2C t
- liftM (map(\i -> t' i)) $ mapM (id2CTyped2 (Just $ t' empty) (VarParamType t)) ids
-
-tvar2C _ externVar includeType ignoreInit (VarDeclaration _ isConst (ids, t) mInitExpr) = do
- t' <- liftM (((if isConst then text "static const" else if externVar
- then text "extern"
- else empty)
- <+>) . ) $ type2C t
- ie <- initExpr mInitExpr
- lt <- gets lastType
- case (isConst, lt, ids, mInitExpr) of
- (True, BTInt, [i], Just _) -> do
- i' <- id2CTyped t i
- return $ if includeType then [text "enum" <> braces (i' <+> ie)] else []
- (True, BTFloat, [i], Just e) -> do
- i' <- id2CTyped t i
- ie <- initExpr2C e
- return $ if includeType then [text "#define" <+> i' <+> parens ie <> text "\n"] else []
- (_, BTFunction{}, _, Nothing) -> liftM (map(\i -> t' i)) $ mapM (id2CTyped t) ids
- (_, BTArray r _ _, [i], _) -> do
- i' <- id2CTyped t i
- ie' <- return $ case (r, mInitExpr, ignoreInit) of
- (RangeInfinite, Nothing, False) -> text "= NULL" -- force dynamic array to be initialized as NULL if not initialized at all
- (_, _, _) -> ie
- result <- liftM (map(\i -> varDeclDecision isConst includeType (t' i) ie')) $ mapM (id2CTyped t) ids
- case (r, ignoreInit) of
- (RangeInfinite, False) ->
- -- if the array is dynamic, add dimension info to it
- return $ [dimDecl] ++ result
- where
- arrayDimStr = show $ arrayDimension t
- arrayDimInitExp = text ("={" ++ ".dim = " ++ arrayDimStr ++ ", .a = {0, 0, 0, 0}}")
- dimDecl = varDeclDecision isConst includeType (text "fpcrtl_dimension_t" <+> i' <> text "_dimension_info") arrayDimInitExp
-
- (_, _) -> return result
-
- _ -> liftM (map(\i -> varDeclDecision isConst includeType (t' i) ie)) $ mapM (id2CTyped2 (Just $ t' empty) t) ids
- where
- initExpr Nothing = return $ empty
- initExpr (Just e) = liftM (text "=" <+>) (initExpr2C e)
- varDeclDecision True True varStr expStr = varStr <+> expStr
- varDeclDecision False True varStr expStr = if externVar then varStr else varStr <+> expStr
- varDeclDecision False False varStr expStr = varStr <+> expStr
- varDeclDecision True False varStr expStr = empty
- arrayDimension a = case a of
- ArrayDecl Nothing t -> let a = arrayDimension t in if a > 3 then error "Dynamic array with dimension > 4 is not supported." else 1 + arrayDimension t
- ArrayDecl _ _ -> error "Mixed dynamic array and static array are not supported."
- _ -> 0
-
-tvar2C f _ _ _ (OperatorDeclaration op (Identifier i _) inline ret params body) = do
- r <- op2CTyped op (extractTypes params)
- fun2C f i (FunctionDeclaration r inline ret params body)
-
-
-op2CTyped :: String -> [TypeDecl] -> State RenderState Identifier
-op2CTyped op t = do
- t' <- liftM (render . hcat . punctuate (char '_') . map (\t -> t empty)) $ mapM type2C t
- bt <- gets lastType
- return $ Identifier (t' ++ "_op_" ++ opStr) bt
- where
- opStr = case op of
- "+" -> "add"
- "-" -> "sub"
- "*" -> "mul"
- "/" -> "div"
- "/(float)" -> "div"
- "=" -> "eq"
- "<" -> "lt"
- ">" -> "gt"
- "<>" -> "neq"
- _ -> error $ "op2CTyped: unknown op '" ++ op ++ "'"
-
-extractTypes :: [TypeVarDeclaration] -> [TypeDecl]
-extractTypes = concatMap f
- where
- f (VarDeclaration _ _ (ids, t) _) = replicate (length ids) t
- f a = error $ "extractTypes: can't extract from " ++ show a
-
-initExpr2C, initExpr2C' :: InitExpression -> State RenderState Doc
-initExpr2C (InitArray values) = liftM (braces . vcat . punctuate comma) $ mapM initExpr2C values
-initExpr2C a = initExpr2C' a
-initExpr2C' InitNull = return $ text "NULL"
-initExpr2C' (InitAddress expr) = do
- ie <- initExpr2C' expr
- lt <- gets lastType
- case lt of
- BTFunction True _ _ -> return $ text "&" <> ie <> text "__vars"
- _ -> return $ text "&" <> ie
-initExpr2C' (InitPrefixOp op expr) = liftM (text (op2C op) <>) (initExpr2C' expr)
-initExpr2C' (InitBinOp op expr1 expr2) = do
- e1 <- initExpr2C' expr1
- e2 <- initExpr2C' expr2
- return $ parens $ e1 <+> text (op2C op) <+> e2
-initExpr2C' (InitNumber s) = return $ text s
-initExpr2C' (InitFloat s) = return $ text s
-initExpr2C' (InitHexNumber s) = return $ text "0x" <> (text . map toLower $ s)
-initExpr2C' (InitString [a]) = return . quotes $ text [a]
-initExpr2C' (InitString s) = return $ strInit s
-initExpr2C' (InitChar a) = return $ quotes $ text "\\x" <> text (showHex (read a) "")
-initExpr2C' (InitReference i) = id2C IOLookup i
-initExpr2C' (InitRecord fields) = do
- (fs :: [Doc]) <- mapM (\(Identifier a _, b) -> liftM (text "." <> text a <+> equals <+>) $ initExpr2C b) fields
- return $ lbrace $+$ (nest 4 . vcat . punctuate comma $ fs) $+$ rbrace
-initExpr2C' (InitArray [value]) = initExpr2C value
-initExpr2C' r@(InitRange (Range i@(Identifier i' _))) = do
- id2C IOLookup i
- t <- gets lastType
- case t of
- BTEnum s -> return . int $ length s
- BTInt -> case i' of
- "byte" -> return $ int 256
- _ -> error $ "InitRange identifier: " ++ i'
- _ -> error $ "InitRange: " ++ show r
-initExpr2C' (InitRange (RangeFromTo (InitNumber "0") r)) = initExpr2C $ BuiltInFunction "succ" [r]
-initExpr2C' (InitRange (RangeFromTo (InitChar "0") (InitChar r))) = initExpr2C $ BuiltInFunction "succ" [InitNumber r]
-initExpr2C' (InitRange a) = error $ show a --return $ text "<<range>>"
-initExpr2C' (InitSet []) = return $ text "0"
-initExpr2C' (InitSet a) = return $ text "<<set>>"
-initExpr2C' (BuiltInFunction "low" [InitReference e]) = return $
- case e of
- (Identifier "LongInt" _) -> int (-2^31)
- (Identifier "SmallInt" _) -> int (-2^15)
- _ -> error $ "BuiltInFunction 'low': " ++ show e
-initExpr2C' (BuiltInFunction "high" [e]) = do
- initExpr2C e
- t <- gets lastType
- case t of
- (BTArray i _ _) -> initExpr2C' $ BuiltInFunction "pred" [InitRange i]
- a -> error $ "BuiltInFunction 'high': " ++ show a
-initExpr2C' (BuiltInFunction "succ" [BuiltInFunction "pred" [e]]) = initExpr2C' e
-initExpr2C' (BuiltInFunction "pred" [BuiltInFunction "succ" [e]]) = initExpr2C' e
-initExpr2C' (BuiltInFunction "succ" [e]) = liftM (<> text " + 1") $ initExpr2C' e
-initExpr2C' (BuiltInFunction "pred" [e]) = liftM (<> text " - 1") $ initExpr2C' e
-initExpr2C' b@(BuiltInFunction _ _) = error $ show b
-initExpr2C' a = error $ "initExpr2C: don't know how to render " ++ show a
-
-
-range2C :: InitExpression -> State RenderState [Doc]
-range2C (InitString [a]) = return [quotes $ text [a]]
-range2C (InitRange (Range i)) = liftM (flip (:) []) $ id2C IOLookup i
-range2C (InitRange (RangeFromTo (InitString [a]) (InitString [b]))) = return $ map (\i -> quotes $ text [i]) [a..b]
-range2C a = liftM (flip (:) []) $ initExpr2C a
-
-baseType2C :: String -> BaseType -> Doc
-baseType2C _ BTFloat = text "float"
-baseType2C _ BTBool = text "bool"
-baseType2C _ BTString = text "string255"
-baseType2C s a = error $ "baseType2C: " ++ show a ++ "\n" ++ s
-
-type2C :: TypeDecl -> State RenderState (Doc -> Doc)
-type2C (SimpleType i) = liftM (\i a -> i <+> a) $ id2C IOLookup i
-type2C t = do
- r <- type2C' t
- rt <- resolveType t
- modify (\st -> st{lastType = rt})
- return r
- where
- type2C' VoidType = return (text "void" <+>)
- type2C' (String l) = return (text "string255" <+>)--return (text ("string" ++ show l) <+>)
- type2C' (PointerTo (SimpleType i)) = do
- i' <- id2C IODeferred i
- lt <- gets lastType
- case lt of
- BTRecord _ _ -> return $ \a -> text "struct __" <> i' <+> text "*" <+> a
- BTUnknown -> return $ \a -> text "struct __" <> i' <+> text "*" <+> a
- _ -> return $ \a -> i' <+> text "*" <+> a
- type2C' (PointerTo t) = liftM (\t a -> t (parens $ text "*" <> a)) $ type2C t
- type2C' (RecordType tvs union) = do
- t <- withState' f $ mapM (tvar2C False False True False) tvs
- u <- unions
- return $ \i -> text "struct __" <> i <+> lbrace $+$ nest 4 ((vcat . map (<> semi) . concat $ t) $$ u) $+$ rbrace <+> i
- where
- f s = s{currentUnit = ""}
- unions = case union of
- Nothing -> return empty
- Just a -> do
- structs <- mapM struct2C a
- return $ text "union" $+$ braces (nest 4 $ vcat structs) <> semi
- struct2C tvs = do
- t <- withState' f $ mapM (tvar2C False False True False) tvs
- return $ text "struct" $+$ braces (nest 4 (vcat . map (<> semi) . concat $ t)) <> semi
- type2C' (RangeType r) = return (text "int" <+>)
- type2C' (Sequence ids) = do
- is <- mapM (id2C IOInsert . setBaseType bt) ids
- return (text "enum" <+> (braces . vcat . punctuate comma . map (\(a, b) -> a <+> equals <+> text "0x" <> text (showHex b "")) $ zip is [0..]) <+>)
- where
- bt = BTEnum $ map (\(Identifier i _) -> map toLower i) ids
- type2C' (ArrayDecl Nothing t) = type2C (PointerTo t)
- type2C' (ArrayDecl (Just r) t) = do
- t' <- type2C t
- lt <- gets lastType
- ft <- case lt of
- -- BTFunction {} -> type2C (PointerTo t)
- _ -> return t'
- r' <- initExpr2C (InitRange r)
- return $ \i -> ft i <> brackets r'
- type2C' (Set t) = return (text "<<set>>" <+>)
- type2C' (FunctionType returnType params) = do
- t <- type2C returnType
- p <- withState' id $ functionParams2C params
- return (\i -> (t empty <> (parens $ text "*" <> i) <> parens p))
- type2C' (DeriveType (InitBinOp _ _ i)) = type2C' (DeriveType i)
- type2C' (DeriveType (InitPrefixOp _ i)) = type2C' (DeriveType i)
- type2C' (DeriveType (InitNumber _)) = return (text "int" <+>)
- type2C' (DeriveType (InitHexNumber _)) = return (text "int" <+>)
- type2C' (DeriveType (InitFloat _)) = return (text "float" <+>)
- type2C' (DeriveType (BuiltInFunction {})) = return (text "int" <+>)
- type2C' (DeriveType (InitString {})) = return (text "string255" <+>)
- type2C' (DeriveType r@(InitReference {})) = do
- initExpr2C r
- t <- gets lastType
- return (baseType2C (show r) t <+>)
- type2C' (DeriveType a) = error $ "Can't derive type from " ++ show a
-
-phrase2C :: Phrase -> State RenderState Doc
-phrase2C (Phrases p) = do
- ps <- mapM phrase2C p
- return $ text "{" $+$ (nest 4 . vcat $ ps) $+$ text "}"
-phrase2C (ProcCall f@(FunCall {}) []) = liftM (<> semi) $ ref2C f
-phrase2C (ProcCall ref []) = liftM (<> semi) $ ref2CF ref
-phrase2C (ProcCall ref params) = error $ "ProcCall"{-do
- r <- ref2C ref
- ps <- mapM expr2C params
- return $ r <> parens (hsep . punctuate (char ',') $ ps) <> semi -}
-phrase2C (IfThenElse (expr) phrase1 mphrase2) = do
- e <- expr2C expr
- p1 <- (phrase2C . wrapPhrase) phrase1
- el <- elsePart
- return $
- text "if" <> parens e $+$ p1 $+$ el
- where
- elsePart | isNothing mphrase2 = return $ empty
- | otherwise = liftM (text "else" $$) $ (phrase2C . wrapPhrase) (fromJust mphrase2)
-phrase2C (Assignment ref expr) = do
- r <- ref2C ref
- t <- gets lastType
- case (t, expr) of
- (BTFunction {}, (Reference r')) -> do
- e <- ref2C r'
- return $ r <+> text "=" <+> e <> semi
- (BTString, _) -> do
- e <- expr2C expr
- lt <- gets lastType
- case lt of
- -- assume pointer to char for simplicity
- BTPointerTo _ -> do
- e <- expr2C $ Reference $ FunCall [Reference $ RefExpression expr] (SimpleReference (Identifier "pchar2str" BTUnknown))
- return $ r <+> text "=" <+> e <> semi
- BTString -> do
- e <- expr2C expr
- return $ r <+> text "=" <+> e <> semi
- _ -> error $ "Assignment to string from " ++ show lt
- (BTArray _ _ _, _) -> do
- case expr of
- Reference er -> do
- exprRef <- ref2C er
- exprT <- gets lastType
- case exprT of
- BTArray RangeInfinite _ _ ->
- return $ text "FIXME: assign a dynamic array to an array"
- BTArray _ _ _ -> phrase2C $
- ProcCall (FunCall
- [
- Reference $ ref
- , Reference $ RefExpression expr
- , Reference $ FunCall [expr] (SimpleReference (Identifier "sizeof" BTUnknown))
- ]
- (SimpleReference (Identifier "memcpy" BTUnknown))
- ) []
- _ -> return $ text "FIXME: assign a non-specific value to an array"
-
- _ -> return $ text "FIXME: dynamic array assignment 2"
- _ -> do
- e <- expr2C expr
- return $ r <+> text "=" <+> e <> semi
-phrase2C (WhileCycle expr phrase) = do
- e <- expr2C expr
- p <- phrase2C $ wrapPhrase phrase
- return $ text "while" <> parens e $$ p
-phrase2C (SwitchCase expr cases mphrase) = do
- e <- expr2C expr
- cs <- mapM case2C cases
- d <- dflt
- return $
- text "switch" <> parens e $+$ braces (nest 4 . vcat $ cs ++ d)
- where
- case2C :: ([InitExpression], Phrase) -> State RenderState Doc
- case2C (e, p) = do
- ies <- mapM range2C e
- ph <- phrase2C p
- return $
- vcat (map (\i -> text "case" <+> i <> colon) . concat $ ies) <> nest 4 (ph $+$ text "break;")
- dflt | isNothing mphrase = return [text "default: break;"] -- avoid compiler warning
- | otherwise = do
- ph <- mapM phrase2C $ fromJust mphrase
- return [text "default:" <+> nest 4 (vcat ph)]
-
-phrase2C wb@(WithBlock ref p) = do
- r <- ref2C ref
- t <- gets lastType
- case t of
- (BTRecord _ rs) -> withRecordNamespace (render r ++ ".") (rec2Records rs) $ phrase2C $ wrapPhrase p
- a -> do
- error $ "'with' block referencing non-record type " ++ show a ++ "\n" ++ show wb
-phrase2C (ForCycle i' e1' e2' p up) = do
- i <- id2C IOLookup i'
- iType <- gets lastIdTypeDecl
- e1 <- expr2C e1'
- e2 <- expr2C e2'
- let inc = if up then "inc" else "dec"
- let add = if up then "+ 1" else "- 1"
- let iEnd = i <> text "__end__"
- ph <- phrase2C . appendPhrase (BuiltInFunctionCall [Reference $ SimpleReference i'] (SimpleReference (Identifier inc BTUnknown))) $ wrapPhrase p
- return . braces $
- i <+> text "=" <+> e1 <> semi
- $$
- iType <+> iEnd <+> text "=" <+> e2 <> semi
- $$
- text "if" <+> (parens $ i <+> text "<=" <+> iEnd) <+> text "do" <+> ph <+>
- text "while" <> parens (i <+> text "!=" <+> iEnd <+> text add) <> semi
- where
- appendPhrase p (Phrases ps) = Phrases $ ps ++ [p]
-phrase2C (RepeatCycle e' p') = do
- e <- expr2C e'
- p <- phrase2C (Phrases p')
- return $ text "do" <+> p <+> text "while" <> parens (text "!" <> parens e) <> semi
-phrase2C NOP = return $ text ";"
-
-phrase2C (BuiltInFunctionCall [] (SimpleReference (Identifier "exit" BTUnknown))) = do
- f <- gets currentFunctionResult
- if null f then
- return $ text "return" <> semi
- else
- return $ text "return" <+> text f <> semi
-phrase2C (BuiltInFunctionCall [] (SimpleReference (Identifier "break" BTUnknown))) = return $ text "break" <> semi
-phrase2C (BuiltInFunctionCall [] (SimpleReference (Identifier "continue" BTUnknown))) = return $ text "continue" <> semi
-phrase2C (BuiltInFunctionCall [e] (SimpleReference (Identifier "exit" BTUnknown))) = liftM (\e -> text "return" <+> e <> semi) $ expr2C e
-phrase2C (BuiltInFunctionCall [e] (SimpleReference (Identifier "dec" BTUnknown))) = liftM (\e -> text "--" <> e <> semi) $ expr2C e
-phrase2C (BuiltInFunctionCall [e1, e2] (SimpleReference (Identifier "dec" BTUnknown))) = liftM2 (\a b -> a <> text " -= " <> b <> semi) (expr2C e1) (expr2C e2)
-phrase2C (BuiltInFunctionCall [e] (SimpleReference (Identifier "inc" BTUnknown))) = liftM (\e -> text "++" <> e <> semi) $ expr2C e
-phrase2C (BuiltInFunctionCall [e1, e2] (SimpleReference (Identifier "inc" BTUnknown))) = liftM2 (\a b -> a <+> text "+=" <+> b <> semi) (expr2C e1) (expr2C e2)
-phrase2C a = error $ "phrase2C: " ++ show a
-
-wrapPhrase p@(Phrases _) = p
-wrapPhrase p = Phrases [p]
-
-expr2C :: Expression -> State RenderState Doc
-expr2C (Expression s) = return $ text s
-expr2C b@(BinOp op expr1 expr2) = do
- e1 <- expr2C expr1
- t1 <- gets lastType
- e2 <- expr2C expr2
- t2 <- gets lastType
- case (op2C op, t1, t2) of
- ("+", BTString, BTString) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strconcat" (BTFunction False 2 BTString))
- ("+", BTString, BTChar) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strappend" (BTFunction False 2 BTString))
- ("+", BTChar, BTString) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strprepend" (BTFunction False 2 BTString))
- ("+", BTChar, BTChar) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_chrconcat" (BTFunction False 2 BTString))
- ("==", BTString, BTChar) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strcomparec" (BTFunction False 2 BTBool))
- ("==", BTString, BTString) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strcompare" (BTFunction False 2 BTBool))
- ("!=", BTString, _) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strncompare" (BTFunction False 2 BTBool))
- ("&", BTBool, _) -> return $ parens e1 <+> text "&&" <+> parens e2
- ("|", BTBool, _) -> return $ parens e1 <+> text "||" <+> parens e2
- (_, BTRecord t1 _, BTRecord t2 _) -> do
- i <- op2CTyped op [SimpleType (Identifier t1 undefined), SimpleType (Identifier t2 undefined)]
- ref2C $ FunCall [expr1, expr2] (SimpleReference i)
- (_, BTRecord t1 _, BTInt) -> do
- -- aw, "LongInt" here is hwengine-specific hack
- i <- op2CTyped op [SimpleType (Identifier t1 undefined), SimpleType (Identifier "LongInt" undefined)]
- ref2C $ FunCall [expr1, expr2] (SimpleReference i)
- ("in", _, _) ->
- case expr2 of
- SetExpression set -> do
- ids <- mapM (id2C IOLookup) set
- modify(\s -> s{lastType = BTBool})
- return . parens . hcat . punctuate (text " || ") . map (\i -> parens $ e1 <+> text "==" <+> i) $ ids
- _ -> error "'in' against not set expression"
- (o, _, _) | o `elem` boolOps -> do
- modify(\s -> s{lastType = BTBool})
- return $ parens e1 <+> text o <+> parens e2
- | otherwise -> do
- o' <- return $ case o of
- "/(float)" -> text "/(float)" -- pascal returns real value
- _ -> text o
- e1' <- return $ case (o, t1, t2) of
- ("-", BTInt, BTInt) -> parens $ text "(int64_t)" <+> parens e1
- _ -> parens e1
- e2' <- return $ case (o, t1, t2) of
- ("-", BTInt, BTInt) -> parens $ text "(int64_t)" <+> parens e2
- _ -> parens e2
- return $ e1' <+> o' <+> e2'
- where
- boolOps = ["==", "!=", "<", ">", "<=", ">="]
-expr2C (NumberLiteral s) = do
- modify(\s -> s{lastType = BTInt})
- return $ text s
-expr2C (FloatLiteral s) = return $ text s
-expr2C (HexNumber s) = return $ text "0x" <> (text . map toLower $ s)
-{-expr2C (StringLiteral [a]) = do
- modify(\s -> s{lastType = BTChar})
- return . quotes . text $ escape a
- where
- escape '\'' = "\\\'"
- escape a = [a]-}
-expr2C (StringLiteral s) = addStringConst s
-expr2C (PCharLiteral s) = return . doubleQuotes $ text s
-expr2C (Reference ref) = ref2CF ref
-expr2C (PrefixOp op expr) = do
- e <- expr2C expr
- lt <- gets lastType
- case lt of
- BTRecord t _ -> do
- i <- op2CTyped op [SimpleType (Identifier t undefined)]
- ref2C $ FunCall [expr] (SimpleReference i)
- BTBool -> do
- o <- return $ case op of
- "not" -> text "!"
- _ -> text (op2C op)
- return $ o <> parens e
- _ -> return $ text (op2C op) <> parens e
-expr2C Null = return $ text "NULL"
-expr2C (CharCode a) = do
- modify(\s -> s{lastType = BTChar})
- return $ quotes $ text "\\x" <> text (showHex (read a) "")
-expr2C (HexCharCode a) = if length a <= 2 then return $ quotes $ text "\\x" <> text (map toLower a) else expr2C $ HexNumber a
-expr2C (SetExpression ids) = mapM (id2C IOLookup) ids >>= return . parens . hcat . punctuate (text " | ")
-
-expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "low" _))) = do
- e' <- liftM (map toLower . render) $ expr2C e
- lt <- gets lastType
- case lt of
- BTEnum a -> return $ int 0
- BTInt -> case e' of
- "longint" -> return $ int (-2147483648)
- BTArray {} -> return $ int 0
- _ -> error $ "BuiltInFunCall 'low' from " ++ show e ++ "\ntype: " ++ show lt
-expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "high" _))) = do
- e' <- liftM (map toLower . render) $ expr2C e
- lt <- gets lastType
- case lt of
- BTEnum a -> return . int $ length a - 1
- BTInt -> case e' of
- "longint" -> return $ int (2147483647)
- BTString -> return $ int 255
- BTArray (RangeFromTo _ n) _ _ -> initExpr2C n
- _ -> error $ "BuiltInFunCall 'high' from " ++ show e ++ "\ntype: " ++ show lt
-expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "ord" _))) = liftM parens $ expr2C e
-expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "succ" _))) = liftM (<> text " + 1") $ expr2C e
-expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "pred" _))) = liftM (<> text " - (int64_t)1") $ expr2C e
-expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "length" _))) = do
- e' <- expr2C e
- lt <- gets lastType
- modify (\s -> s{lastType = BTInt})
- case lt of
- BTString -> return $ text "fpcrtl_Length" <> parens e'
- BTArray RangeInfinite _ _ -> error $ "length() called on variable size array " ++ show e'
- BTArray (RangeFromTo _ n) _ _ -> initExpr2C (BuiltInFunction "succ" [n])
- _ -> error $ "length() called on " ++ show lt
-expr2C (BuiltInFunCall params ref) = do
- r <- ref2C ref
- t <- gets lastType
- ps <- mapM expr2C params
- case t of
- BTFunction _ _ t' -> do
- modify (\s -> s{lastType = t'})
- _ -> error $ "BuiltInFunCall lastType: " ++ show t
- return $
- r <> parens (hsep . punctuate (char ',') $ ps)
-expr2C a = error $ "Don't know how to render " ++ show a
-
-ref2CF :: Reference -> State RenderState Doc
-ref2CF (SimpleReference name) = do
- i <- id2C IOLookup name
- t <- gets lastType
- case t of
- BTFunction _ _ rt -> do
- modify(\s -> s{lastType = rt})
- return $ i <> parens empty --xymeng: removed parens
- _ -> return $ i
-ref2CF r@(RecordField (SimpleReference _) (SimpleReference _)) = do
- i <- ref2C r
- t <- gets lastType
- case t of
- BTFunction _ _ rt -> do
- modify(\s -> s{lastType = rt})
- return $ i <> parens empty
- _ -> return $ i
-ref2CF r = ref2C r
-
-ref2C :: Reference -> State RenderState Doc
--- rewrite into proper form
-ref2C (RecordField ref1 (ArrayElement exprs ref2)) = ref2C $ ArrayElement exprs (RecordField ref1 ref2)
-ref2C (RecordField ref1 (Dereference ref2)) = ref2C $ Dereference (RecordField ref1 ref2)
-ref2C (RecordField ref1 (RecordField ref2 ref3)) = ref2C $ RecordField (RecordField ref1 ref2) ref3
-ref2C (RecordField ref1 (FunCall params ref2)) = ref2C $ FunCall params (RecordField ref1 ref2)
-ref2C (ArrayElement (a:b:xs) ref) = ref2C $ ArrayElement (b:xs) (ArrayElement [a] ref)
--- conversion routines
-ref2C ae@(ArrayElement [expr] ref) = do
- e <- expr2C expr
- r <- ref2C ref
- t <- gets lastType
- case t of
- (BTArray _ _ t') -> modify (\st -> st{lastType = t'})
--- (BTFunctionReturn _ (BTArray _ _ t')) -> modify (\st -> st{lastType = t'})
--- (BTFunctionReturn _ (BTString)) -> modify (\st -> st{lastType = BTChar})
- (BTString) -> modify (\st -> st{lastType = BTChar})
- (BTPointerTo t) -> do
- t'' <- fromPointer (show t) =<< gets lastType
- case t'' of
- BTChar -> modify (\st -> st{lastType = BTChar})
- a -> error $ "Getting element of " ++ show a ++ "\nReference: " ++ show ae
- a -> error $ "Getting element of " ++ show a ++ "\nReference: " ++ show ae
- case t of
- BTString -> return $ r <> text ".s" <> brackets e
- _ -> return $ r <> brackets e
-ref2C (SimpleReference name) = id2C IOLookup name
-ref2C rf@(RecordField (Dereference ref1) ref2) = do
- r1 <- ref2C ref1
- t <- fromPointer (show ref1) =<< gets lastType
- r2 <- case t of
- BTRecord _ rs -> withRecordNamespace "" (rec2Records rs) $ ref2C ref2
- BTUnit -> error "What??"
- a -> error $ "dereferencing from " ++ show a ++ "\n" ++ show rf
- return $
- r1 <> text "->" <> r2
-ref2C rf@(RecordField ref1 ref2) = do
- r1 <- ref2C ref1
- t <- gets lastType
- case t of
- BTRecord _ rs -> do
- r2 <- withRecordNamespace "" (rec2Records rs) $ ref2C ref2
- return $ r1 <> text "." <> r2
- BTUnit -> withLastIdNamespace $ ref2C ref2
- a -> error $ "dereferencing from " ++ show a ++ "\n" ++ show rf
-ref2C d@(Dereference ref) = do
- r <- ref2C ref
- t <- fromPointer (show d) =<< gets lastType
- modify (\st -> st{lastType = t})
- return $ (parens $ text "*" <> r)
-ref2C f@(FunCall params ref) = do
- r <- fref2C ref
- t <- gets lastType
- case t of
- BTFunction _ _ t' -> do
- ps <- liftM (parens . hsep . punctuate (char ',')) $ mapM expr2C params
- modify (\s -> s{lastType = t'})
- return $ r <> ps
- _ -> case (ref, params) of
- (SimpleReference i, [p]) -> ref2C $ TypeCast i p
- _ -> error $ "ref2C FunCall erroneous type cast detected: " ++ show f ++ "\nType detected: " ++ show t
- where
- fref2C (SimpleReference name) = id2C (IOLookupFunction $ length params) name
- fref2C a = ref2C a
-
-ref2C (Address ref) = do
- r <- ref2C ref
- lt <- gets lastType
- case lt of
- BTFunction True _ _ -> return $ text "&" <> parens (r <> text "__vars")
- _ -> return $ text "&" <> parens r
-ref2C (TypeCast t'@(Identifier i _) expr) = do
- lt <- expr2C expr >> gets lastType
- case (map toLower i, lt) of
- ("pchar", BTString) -> ref2C $ FunCall [expr] (SimpleReference (Identifier "_pchar" $ BTPointerTo BTChar))
- ("shortstring", BTPointerTo _) -> ref2C $ FunCall [expr] (SimpleReference (Identifier "pchar2str" $ BTString))
- (a, _) -> do
- e <- expr2C expr
- t <- id2C IOLookup t'
- return . parens $ parens t <> e
-ref2C (RefExpression expr) = expr2C expr
-
-
-op2C :: String -> String
-op2C "or" = "|"
-op2C "and" = "&"
-op2C "not" = "~"
-op2C "xor" = "^"
-op2C "div" = "/"
-op2C "mod" = "%"
-op2C "shl" = "<<"
-op2C "shr" = ">>"
-op2C "<>" = "!="
-op2C "=" = "=="
-op2C "/" = "/(float)"
-op2C a = a
-