tools/pas2c.hs
author unc0rr
Sat, 05 May 2012 00:01:12 +0400
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permissions -rw-r--r--
Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
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{-# LANGUAGE ScopedTypeVariables #-}
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module Pas2C where
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import Text.PrettyPrint.HughesPJ
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import Data.Maybe
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import Data.Char
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import Text.Parsec.Prim hiding (State)
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import Control.Monad.State
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import System.IO
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import System.Directory
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import Control.Monad.IO.Class
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import PascalPreprocessor
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import Control.Exception
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import System.IO.Error
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import qualified Data.Map as Map
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import Data.List (find)
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import Numeric
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import PascalParser
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import PascalUnitSyntaxTree
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data InsertOption = 
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    IOInsert
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    | IOLookup
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    | IODeferred
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type Records = Map.Map String [(String, BaseType)]
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data RenderState = RenderState 
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    {
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        currentScope :: Records,
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        lastIdentifier :: String,
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        lastType :: BaseType,
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        stringConsts :: [(String, String)],
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        uniqCounter :: Int,
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        namespaces :: Map.Map String Records
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    }
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emptyState = RenderState Map.empty "" BTUnknown [] 0
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getUniq :: State RenderState Int
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getUniq = do
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    i <- gets uniqCounter
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    modify(\s -> s{uniqCounter = uniqCounter s + 1})
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    return i
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addStringConst :: String -> State RenderState Doc
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addStringConst str = do
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    strs <- gets stringConsts
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    let a = find ((==) str . snd) strs
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    if isJust a then
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        do
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        modify (\s -> s{lastType = BTString})
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        return . text . fst . fromJust $ a
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    else
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        do
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        i <- getUniq
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        let sn = "__str" ++ show i
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        modify (\s -> s{lastType = BTString, stringConsts = (sn, str) : strs})
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        return $ text sn
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escapeStr :: String -> String
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escapeStr = foldr escapeChar []
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escapeChar :: Char -> ShowS
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escapeChar '"' s = "\\\"" ++ s
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escapeChar a s = a : s
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strInit :: String -> Doc
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strInit a = text "STRINIT" <> parens (doubleQuotes (text $ escapeStr a))
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renderStringConsts :: State RenderState Doc
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renderStringConsts = liftM (vcat . map (\(a, b) -> text "const string255" <+> (text a) <+> text "=" <+> strInit b <> semi)) 
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    $ gets stringConsts
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docToLower :: Doc -> Doc
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docToLower = text . map toLower . render
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pas2C :: String -> IO ()
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pas2C fn = do
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    setCurrentDirectory "../hedgewars/"
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    s <- flip execStateT initState $ f fn
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    renderCFiles s
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    where
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    printLn = liftIO . hPutStrLn stderr
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    print = liftIO . hPutStr stderr
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    initState = Map.empty
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    f :: String -> StateT (Map.Map String PascalUnit) IO ()
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    f fileName = do
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        processed <- gets $ Map.member fileName
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        unless processed $ do
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            print ("Preprocessing '" ++ fileName ++ ".pas'... ")
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            fc' <- liftIO 
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                $ tryJust (guard . isDoesNotExistError) 
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                $ preprocess (fileName ++ ".pas")
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            case fc' of
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                (Left a) -> do
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                    modify (Map.insert fileName (System []))
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                    printLn "doesn't exist"
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                (Right fc) -> do
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                    print "ok, parsing... "
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                    let ptree = parse pascalUnit fileName fc
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                    case ptree of
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                         (Left a) -> do
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                            liftIO $ writeFile "preprocess.out" fc
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                            printLn $ show a ++ "\nsee preprocess.out for preprocessed source"
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                            fail "stop"
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                         (Right a) -> do
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                            printLn "ok"
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                            modify (Map.insert fileName a)
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                            mapM_ f (usesFiles a)
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renderCFiles :: Map.Map String PascalUnit -> IO ()
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renderCFiles units = do
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    let u = Map.toList units
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    let nss = Map.map (toNamespace nss) units
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    hPutStrLn stderr $ "Units: " ++ (show . Map.keys . Map.filter (not . Map.null) $ nss)
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    --writeFile "pas2c.log" $ unlines . map (\t -> show (fst t) ++ "\n" ++ (unlines . map ((:) '\t' . show) . snd $ t)) . Map.toList $ nss
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    mapM_ (toCFiles nss) u
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    where
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    toNamespace :: Map.Map String Records -> PascalUnit -> Records
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    toNamespace nss (System tvs) = 
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        currentScope $ execState (mapM_ (tvar2C True) tvs) (emptyState nss)
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    toNamespace _ (Program {}) = Map.empty
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    toNamespace nss (Unit _ interface _ _ _) = 
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        currentScope $ execState (interface2C interface) (emptyState nss)
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withState' :: (RenderState -> RenderState) -> State RenderState a -> State RenderState a
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withState' f sf = do
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    st <- liftM f get
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    let (a, s) = runState sf st
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    modify(\st -> st{
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        lastType = lastType s
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        , uniqCounter = uniqCounter s
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        , stringConsts = stringConsts s
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        })
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    return a
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withLastIdNamespace :: State RenderState Doc -> State RenderState Doc
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withLastIdNamespace f = do
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    li <- gets lastIdentifier
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    nss <- gets namespaces
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    withState' (\st -> st{currentScope = fromMaybe Map.empty $ Map.lookup li (namespaces st)}) f
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   146
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withRecordNamespace :: String -> [(String, BaseType)] -> State RenderState Doc -> State RenderState Doc
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withRecordNamespace _ [] = error "withRecordNamespace: empty record"
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withRecordNamespace prefix recs = withState' f
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    where
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        f st = st{currentScope = Map.unionWith un records (currentScope st)}
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        records = Map.fromList $ map (\(a, b) -> (map toLower a, [(prefix ++ a, b)])) recs
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        un [a] b = a : b
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toCFiles :: Map.Map String Records -> (String, PascalUnit) -> IO ()
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toCFiles _ (_, System _) = return ()
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toCFiles ns p@(fn, pu) = do
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    hPutStrLn stderr $ "Rendering '" ++ fn ++ "'..."
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    toCFiles' p
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    where
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    toCFiles' (fn, p@(Program {})) = writeFile (fn ++ ".c") $ (render2C initialState . pascal2C) p
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    toCFiles' (fn, (Unit unitId interface implementation _ _)) = do
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        let (a, s) = runState (id2C IOInsert (setBaseType BTUnit unitId) >> interface2C interface) initialState
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        writeFile (fn ++ ".h") $ "#pragma once\n\n#include \"pas2c.h\"\n\n" ++ (render (a $+$ text ""))
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        writeFile (fn ++ ".c") $ "#include \"" ++ fn ++ ".h\"\n" ++ (render2C s . implementation2C) implementation
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    initialState = emptyState ns
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   167
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    render2C :: RenderState -> State RenderState Doc -> String
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    render2C a = render . ($+$ empty) . flip evalState a
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usesFiles :: PascalUnit -> [String]
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usesFiles (Program _ (Implementation uses _) _) = "pas2cSystem" : uses2List uses
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usesFiles (Unit _ (Interface uses1 _) (Implementation uses2 _) _ _) = "pas2cSystem" : uses2List uses1 ++ uses2List uses2
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usesFiles (System {}) = []
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   176
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pascal2C :: PascalUnit -> State RenderState Doc
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pascal2C (Unit _ interface implementation init fin) =
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    liftM2 ($+$) (interface2C interface) (implementation2C implementation)
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pascal2C (Program _ implementation mainFunction) = do
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    impl <- implementation2C implementation
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    [main] <- tvar2C True 
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        (FunctionDeclaration (Identifier "main" BTInt) (SimpleType $ Identifier "int" BTInt) [] (Just (TypesAndVars [], mainFunction)))
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    return $ impl $+$ main
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   186
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interface2C :: Interface -> State RenderState Doc
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interface2C (Interface uses tvars) = do
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    u <- uses2C uses
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    tv <- typesAndVars2C True tvars
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    r <- renderStringConsts
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    return (u $+$ r $+$ tv)
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   195
    
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implementation2C :: Implementation -> State RenderState Doc
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implementation2C (Implementation uses tvars) = do
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    u <- uses2C uses
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    tv <- typesAndVars2C True tvars
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    r <- renderStringConsts
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    return (u $+$ r $+$ tv)
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13262c6e5027 Starting pas2C using library called 'pretty'
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typesAndVars2C :: Bool -> TypesAndVars -> State RenderState Doc
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typesAndVars2C b (TypesAndVars ts) = liftM (vcat . map (<> semi) . concat) $ mapM (tvar2C b) ts
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setBaseType :: BaseType -> Identifier -> Identifier
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setBaseType bt (Identifier i _) = Identifier i bt
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   209
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uses2C :: Uses -> State RenderState Doc
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uses2C uses@(Uses unitIds) = do
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    mapM_ injectNamespace (Identifier "pas2cSystem" undefined : unitIds)
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    mapM_ (id2C IOInsert . setBaseType BTUnit) unitIds
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    return $ vcat . map (\i -> text $ "#include \"" ++ i ++ ".h\"") $ uses2List uses
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   215
    where
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    injectNamespace (Identifier i _) = do
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        getNS <- gets (flip Map.lookup . namespaces)
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        modify (\s -> s{currentScope = Map.unionWith (++) (fromMaybe Map.empty (getNS i)) $ currentScope s})
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uses2List :: Uses -> [String]
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uses2List (Uses ids) = map (\(Identifier i _) -> i) ids
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648caa66991b Convert into Reader monad
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   223
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id2C :: InsertOption -> Identifier -> State RenderState Doc
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id2C IOInsert (Identifier i t) = do
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    ns <- gets currentScope
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{--    case t of 
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        BTUnknown -> do
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   229
            ns <- gets currentScope
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            error $ "id2C IOInsert: type BTUnknown for " ++ show i ++ "\nnamespace: " ++ show (take 100 ns)
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        _ -> do --}
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    modify (\s -> s{currentScope = Map.insertWith (++) n [(i, t)] (currentScope s), lastIdentifier = n})
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    return $ text i
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    where
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   235
        n = map toLower i
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id2C IOLookup (Identifier i t) = do
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    let i' = map toLower i
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   238
    v <- gets $ Map.lookup i' . currentScope
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   239
    lt <- gets lastType
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   240
    if isNothing v then 
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        error $ "Not defined: '" ++ i' ++ "'\n" ++ show lt
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        else 
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   243
        let vv = head $ fromJust v in modify (\s -> s{lastType = snd vv, lastIdentifier = fst vv}) >> (return . text . fst $ vv)
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   244
id2C IODeferred (Identifier i t) = do
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   245
    let i' = map toLower i
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   246
    v <- gets $ Map.lookup i' . currentScope
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   247
    if (isNothing v) then
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   248
        return $ text i
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diff changeset
   249
        else
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   250
        return . text . fst . head . fromJust $ v
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   251
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   252
id2CTyped :: TypeDecl -> Identifier -> State RenderState Doc
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   253
id2CTyped t (Identifier i _) = do
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   254
    tb <- resolveType t
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    case tb of 
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   256
        BTUnknown -> do
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            error $ "id2CTyped: type BTUnknown for " ++ show i ++ "\ntype: " ++ show t
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   258
        _ -> return ()
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   259
    id2C IOInsert (Identifier i tb)
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   260
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
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   261
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
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   262
resolveType :: TypeDecl -> State RenderState BaseType
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   263
resolveType st@(SimpleType (Identifier i _)) = do
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    let i' = map toLower i
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   265
    v <- gets $ Map.lookup i' . currentScope
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   266
    if isJust v then return . snd . head $ fromJust v else return $ f i'
6626
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   267
    where
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   268
    f "integer" = BTInt
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
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   269
    f "pointer" = BTPointerTo BTVoid
6635
c2fa29fe2a58 Some progress, still can't find the source of bad behavior
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   270
    f "boolean" = BTBool
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   271
    f "float" = BTFloat
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    f "char" = BTChar
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   273
    f "string" = BTString
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c2fa29fe2a58 Some progress, still can't find the source of bad behavior
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   274
    f _ = error $ "Unknown system type: " ++ show st
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   275
resolveType (PointerTo (SimpleType (Identifier i _))) = return . BTPointerTo $ BTUnresolved (map toLower i)
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   276
resolveType (PointerTo t) = liftM BTPointerTo $ resolveType t
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   277
resolveType (RecordType tv mtvs) = do
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diff changeset
   278
    tvs <- mapM f (concat $ tv : fromMaybe [] mtvs)
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   279
    return . BTRecord . concat $ tvs
6626
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
unc0rr
parents: 6618
diff changeset
   280
    where
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   281
        f :: TypeVarDeclaration -> State RenderState [(String, BaseType)]
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   282
        f (VarDeclaration _ (ids, td) _) = mapM (\(Identifier i _) -> liftM ((,) i) $ resolveType td) ids
6893
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   283
resolveType (ArrayDecl (Just i) t) = do
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   284
    t' <- resolveType t
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   285
    return $ BTArray i BTInt t' 
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   286
resolveType (ArrayDecl Nothing t) = liftM (BTArray RangeInfinite BTInt) $ resolveType t
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   287
resolveType (FunctionType t a) = liftM (BTFunction (length a)) $ resolveType t
6835
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   288
resolveType (DeriveType (InitHexNumber _)) = return BTInt
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   289
resolveType (DeriveType (InitNumber _)) = return BTInt
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   290
resolveType (DeriveType (InitFloat _)) = return BTFloat
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   291
resolveType (DeriveType (InitString _)) = return BTString
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   292
resolveType (DeriveType (InitBinOp {})) = return BTInt
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   293
resolveType (DeriveType (InitPrefixOp {})) = return BTInt
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   294
resolveType (DeriveType (BuiltInFunction{})) = return BTInt
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   295
resolveType (DeriveType (InitReference (Identifier{}))) = return BTBool -- TODO: derive from actual type
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   296
resolveType (DeriveType _) = return BTUnknown
6635
c2fa29fe2a58 Some progress, still can't find the source of bad behavior
unc0rr
parents: 6626
diff changeset
   297
resolveType (String _) = return BTString
6826
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   298
resolveType VoidType = return BTVoid
6653
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   299
resolveType (Sequence ids) = return $ BTEnum $ map (\(Identifier i _) -> map toLower i) ids
6843
59da15acb2f2 Finally fix the bug with pointer declarations polluting namespace with bad records
unc0rr
parents: 6838
diff changeset
   300
resolveType (RangeType _) = return $ BTVoid
6653
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   301
resolveType (Set t) = liftM BTSet $ resolveType t
6843
59da15acb2f2 Finally fix the bug with pointer declarations polluting namespace with bad records
unc0rr
parents: 6838
diff changeset
   302
   
6834
2af81d3b176d Resolve deferred type on dereference
unc0rr
parents: 6827
diff changeset
   303
6967
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   304
resolve :: String -> BaseType -> State RenderState BaseType
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   305
resolve s (BTUnresolved t) = do
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   306
    v <- gets $ Map.lookup t . currentScope
6967
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   307
    if isJust v then
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   308
        resolve s . snd . head . fromJust $ v
6967
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   309
        else
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   310
        error $ "Unknown type " ++ show t ++ "\n" ++ s
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   311
resolve _ t = return t
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   312
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   313
fromPointer :: String -> BaseType -> State RenderState BaseType
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   314
fromPointer s (BTPointerTo t) = resolve s t
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   315
fromPointer s (BTFunctionReturn _ (BTPointerTo t)) = resolve s t
6855
807156c01475 Finish the toughest part of the converter. Now it knows types of everything, so could correctly recognize bitwise operators and type convertions.
unc0rr
parents: 6854
diff changeset
   316
fromPointer s t = do
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   317
    error $ "Dereferencing from non-pointer type " ++ show t ++ "\n" ++ s
6834
2af81d3b176d Resolve deferred type on dereference
unc0rr
parents: 6827
diff changeset
   318
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   319
    
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   320
functionParams2C params = liftM (hcat . punctuate comma . concat) $ mapM (tvar2C False) params
6834
2af81d3b176d Resolve deferred type on dereference
unc0rr
parents: 6827
diff changeset
   321
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   322
fun2C :: Bool -> String -> TypeVarDeclaration -> State RenderState [Doc]
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   323
fun2C _ _ (FunctionDeclaration name returnType params Nothing) = do
6499
33180b479efa Start converting into monadic code using Reader monad (will be used to store information about namespace)
unc0rr
parents: 6489
diff changeset
   324
    t <- type2C returnType 
6855
807156c01475 Finish the toughest part of the converter. Now it knows types of everything, so could correctly recognize bitwise operators and type convertions.
unc0rr
parents: 6854
diff changeset
   325
    t'<- gets lastType
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   326
    p <- withState' id $ functionParams2C params
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   327
    n <- id2C IOInsert $ setBaseType (BTFunction (length params) t') name
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   328
    return [t empty <+> n <> parens p]
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   329
    
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   330
fun2C True rv (FunctionDeclaration name returnType params (Just (tvars, phrase))) = do
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   331
    let res = docToLower $ text rv <> text "_result"
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6835
diff changeset
   332
    t <- type2C returnType
6837
a137733c5776 Much better types handling, work correctly with functions
unc0rr
parents: 6836
diff changeset
   333
    t'<- gets lastType
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   334
    n <- id2C IOInsert $ setBaseType (BTFunction (length params) t') name
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   335
    (p, ph) <- withState' (\st -> st{currentScope = Map.insertWith un (map toLower rv) [(render res, BTFunctionReturn (render n) t')] $ currentScope st}) $ do
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   336
        p <- functionParams2C params
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   337
        ph <- liftM2 ($+$) (typesAndVars2C False tvars) (phrase2C' phrase)
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   338
        return (p, ph)
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6835
diff changeset
   339
    let phrasesBlock = case returnType of
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6835
diff changeset
   340
            VoidType -> ph
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   341
            _ -> t empty <+> res <> semi $+$ ph $+$ text "return" <+> res <> semi
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   342
    return [ 
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   343
        t empty <+> n <> parens p
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   344
        $+$
6499
33180b479efa Start converting into monadic code using Reader monad (will be used to store information about namespace)
unc0rr
parents: 6489
diff changeset
   345
        text "{" 
33180b479efa Start converting into monadic code using Reader monad (will be used to store information about namespace)
unc0rr
parents: 6489
diff changeset
   346
        $+$ 
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6835
diff changeset
   347
        nest 4 phrasesBlock
6499
33180b479efa Start converting into monadic code using Reader monad (will be used to store information about namespace)
unc0rr
parents: 6489
diff changeset
   348
        $+$
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   349
        text "}"]
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   350
    where
6499
33180b479efa Start converting into monadic code using Reader monad (will be used to store information about namespace)
unc0rr
parents: 6489
diff changeset
   351
    phrase2C' (Phrases p) = liftM vcat $ mapM phrase2C p
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   352
    phrase2C' p = phrase2C p
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   353
    un [a] b = a : b
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   354
    
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   355
fun2C False _ (FunctionDeclaration (Identifier name _) _ _ _) = error $ "nested functions not allowed: " ++ name
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   356
fun2C _ tv _ = error $ "fun2C: I don't render " ++ show tv
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   357
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   358
tvar2C :: Bool -> TypeVarDeclaration -> State RenderState [Doc]
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   359
tvar2C b f@(FunctionDeclaration (Identifier name _) _ _ _) =
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   360
    fun2C b name f
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   361
tvar2C _ td@(TypeDeclaration i' t) = do
6653
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   362
    i <- id2CTyped t i'
6891
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   363
    tp <- case t of
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   364
        FunctionType {} -> type2C (PointerTo t)
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   365
        _ -> type2C t
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   366
    return [text "typedef" <+> tp i]
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   367
    
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   368
tvar2C _ (VarDeclaration isConst (ids, t) mInitExpr) = do
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   369
    t' <- liftM (((if isConst then text "const" else empty) <+>) . ) $ type2C t
6980
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   370
    ie <- initExpr mInitExpr
6979
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   371
    lt <- gets lastType
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   372
    case (isConst, lt, ids, mInitExpr) of
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   373
         (True, BTInt, [i], Just _) -> do
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   374
             i' <- id2CTyped t i
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   375
             return [text "enum" <> braces (i' <+> ie)]
7002
5d817ba976f7 Render float consts into defines
unc0rr
parents: 6980
diff changeset
   376
         (True, BTFloat, [i], Just e) -> do
5d817ba976f7 Render float consts into defines
unc0rr
parents: 6980
diff changeset
   377
             i' <- id2CTyped t i
5d817ba976f7 Render float consts into defines
unc0rr
parents: 6980
diff changeset
   378
             ie <- initExpr2C e
5d817ba976f7 Render float consts into defines
unc0rr
parents: 6980
diff changeset
   379
             return [text "#define" <+> i' <+> parens ie <> text "\n"]
6979
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   380
         _ -> liftM (map(\i -> t' i <+> ie)) $ mapM (id2CTyped t) ids
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   381
    where
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   382
    initExpr Nothing = return $ empty
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   383
    initExpr (Just e) = liftM (text "=" <+>) (initExpr2C e)
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   384
    
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   385
tvar2C f (OperatorDeclaration op (Identifier i _) ret params body) = do
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   386
    r <- op2CTyped op (extractTypes params)
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   387
    fun2C f i (FunctionDeclaration r ret params body)
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   388
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   389
    
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   390
op2CTyped :: String -> [TypeDecl] -> State RenderState Identifier
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   391
op2CTyped op t = do
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   392
    t' <- liftM (render . hcat . punctuate (char '_') . map (\t -> t empty)) $ mapM type2C t
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   393
    bt <- gets lastType
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   394
    return $ case bt of
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   395
         BTRecord {} -> Identifier (t' ++ "_op_" ++ opStr) bt
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   396
         _ -> Identifier t' bt
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   397
    where 
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   398
    opStr = case op of
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   399
                    "+" -> "add"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   400
                    "-" -> "sub"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   401
                    "*" -> "mul"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   402
                    "/" -> "div"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   403
                    "=" -> "eq"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   404
                    "<" -> "lt"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   405
                    ">" -> "gt"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   406
                    _ -> error $ "op2CTyped: unknown op '" ++ op ++ "'"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   407
    
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   408
extractTypes :: [TypeVarDeclaration] -> [TypeDecl]
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   409
extractTypes = concatMap f
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   410
    where
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   411
        f (VarDeclaration _ (ids, t) _) = replicate (length ids) t
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   412
        f a = error $ "extractTypes: can't extract from " ++ show a
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   413
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   414
initExpr2C :: InitExpression -> State RenderState Doc
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   415
initExpr2C InitNull = return $ text "NULL"
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   416
initExpr2C (InitAddress expr) = liftM ((<>) (text "&")) (initExpr2C expr)
6860
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   417
initExpr2C (InitPrefixOp op expr) = liftM (text (op2C op) <>) (initExpr2C expr)
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   418
initExpr2C (InitBinOp op expr1 expr2) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   419
    e1 <- initExpr2C expr1
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   420
    e2 <- initExpr2C expr2
6860
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   421
    return $ parens $ e1 <+> text (op2C op) <+> e2
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   422
initExpr2C (InitNumber s) = return $ text s
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   423
initExpr2C (InitFloat s) = return $ text s
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   424
initExpr2C (InitHexNumber s) = return $ text "0x" <> (text . map toLower $ s)
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   425
initExpr2C (InitString [a]) = return . quotes $ text [a]
6965
5718ec36900c Rework string init macro
unc0rr
parents: 6923
diff changeset
   426
initExpr2C (InitString s) = return $ strInit s
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   427
initExpr2C (InitChar a) = return $ quotes $ text "\\x" <> text (showHex (read a) "")
6663
2c4151afad0c Workaround pointers to not yet defined types
unc0rr
parents: 6653
diff changeset
   428
initExpr2C (InitReference i) = id2C IOLookup i
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   429
initExpr2C (InitRecord fields) = do
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   430
    (fs :: [Doc]) <- mapM (\(Identifier a _, b) -> liftM (text "." <> text a <+> equals <+>) $ initExpr2C b) fields
6886
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   431
    return $ lbrace $+$ (nest 4 . vcat . punctuate comma $ fs) $+$ rbrace
6859
cd0697c7e88b Unwind 'with' construction
unc0rr
parents: 6858
diff changeset
   432
initExpr2C (InitArray [value]) = initExpr2C value
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   433
initExpr2C (InitArray values) = liftM (braces . vcat . punctuate comma) $ mapM initExpr2C values
6891
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   434
initExpr2C r@(InitRange (Range i@(Identifier i' _))) = do
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   435
    id2C IOLookup i
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   436
    t <- gets lastType
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   437
    case t of
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   438
         BTEnum s -> return . int $ length s
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   439
         BTInt -> case i' of
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   440
                       "byte" -> return $ int 256
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   441
                       _ -> error $ "InitRange identifier: " ++ i'
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   442
         _ -> error $ "InitRange: " ++ show r
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   443
initExpr2C (InitRange (RangeFromTo (InitNumber "0") r)) = initExpr2C $ BuiltInFunction "succ" [r]
6893
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   444
initExpr2C (InitRange (RangeFromTo (InitChar "0") (InitChar r))) = initExpr2C $ BuiltInFunction "succ" [InitNumber r]
6891
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   445
initExpr2C (InitRange a) = error $ show a --return $ text "<<range>>"
6872
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   446
initExpr2C (InitSet []) = return $ text "0"
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   447
initExpr2C (InitSet a) = return $ text "<<set>>"
6887
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   448
initExpr2C (BuiltInFunction "low" [InitReference e]) = return $ 
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   449
    case e of
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   450
         (Identifier "LongInt" _) -> int (-2^31)
6893
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   451
         (Identifier "SmallInt" _) -> int (-2^15)
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   452
         _ -> error $ "BuiltInFunction 'low': " ++ show e
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   453
initExpr2C (BuiltInFunction "high" [e]) = do
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   454
    initExpr2C e
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   455
    t <- gets lastType
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   456
    case t of
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   457
         (BTArray i _ _) -> initExpr2C $ BuiltInFunction "pred" [InitRange i]
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   458
         a -> error $ "BuiltInFunction 'high': " ++ show a
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   459
initExpr2C (BuiltInFunction "succ" [BuiltInFunction "pred" [e]]) = initExpr2C e
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   460
initExpr2C (BuiltInFunction "pred" [BuiltInFunction "succ" [e]]) = initExpr2C e
6891
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   461
initExpr2C (BuiltInFunction "succ" [e]) = liftM (<> text " + 1") $ initExpr2C e
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   462
initExpr2C (BuiltInFunction "pred" [e]) = liftM (<> text " - 1") $ initExpr2C e
6887
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   463
initExpr2C b@(BuiltInFunction _ _) = error $ show b    
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   464
initExpr2C a = error $ "initExpr2C: don't know how to render " ++ show a
6391
bd5851ab3157 - Parse sets initialization
unc0rr
parents: 6355
diff changeset
   465
6887
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   466
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   467
range2C :: InitExpression -> State RenderState [Doc]
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   468
range2C (InitString [a]) = return [quotes $ text [a]]
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   469
range2C (InitRange (Range i)) = liftM (flip (:) []) $ id2C IOLookup i
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   470
range2C (InitRange (RangeFromTo (InitString [a]) (InitString [b]))) = return $ map (\i -> quotes $ text [i]) [a..b]
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   471
range2C a = liftM (flip (:) []) $ initExpr2C a
6391
bd5851ab3157 - Parse sets initialization
unc0rr
parents: 6355
diff changeset
   472
6980
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   473
baseType2C :: String -> BaseType -> Doc
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   474
baseType2C _ BTFloat = text "float"
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   475
baseType2C _ BTBool = text "bool"
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   476
baseType2C _ BTString = text "string255"
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   477
baseType2C s a = error $ "baseType2C: " ++ show a ++ "\n" ++ s
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   478
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   479
type2C :: TypeDecl -> State RenderState (Doc -> Doc)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   480
type2C (SimpleType i) = liftM (\i a -> i <+> a) $ id2C IOLookup i
6838
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   481
type2C t = do
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   482
    r <- type2C' t
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   483
    rt <- resolveType t
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   484
    modify (\st -> st{lastType = rt})
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   485
    return r
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   486
    where
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   487
    type2C' VoidType = return (text "void" <+>)
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   488
    type2C' (String l) = return (text "string255" <+>)--return (text ("string" ++ show l) <+>)
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   489
    type2C' (PointerTo (SimpleType i)) = liftM (\i a -> text "struct __" <> i <+> text "*" <+> a) $ id2C IODeferred i
6891
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   490
    type2C' (PointerTo t) = liftM (\t a -> t (parens $ text "*" <> a)) $ type2C t
6838
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   491
    type2C' (RecordType tvs union) = do
6843
59da15acb2f2 Finally fix the bug with pointer declarations polluting namespace with bad records
unc0rr
parents: 6838
diff changeset
   492
        t <- withState' id $ mapM (tvar2C False) tvs
6886
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   493
        u <- unions
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   494
        return $ \i -> text "struct __" <> i <+> lbrace $+$ nest 4 ((vcat . map (<> semi) . concat $ t) $$ u) $+$ rbrace <+> i
6886
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   495
        where
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   496
            unions = case union of
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   497
                     Nothing -> return empty
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   498
                     Just a -> do
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   499
                         structs <- mapM struct2C a
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   500
                         return $ text "union" $+$ braces (nest 4 $ vcat structs) <> semi
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   501
            struct2C tvs = do
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   502
                t <- withState' id $ mapM (tvar2C False) tvs
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   503
                return $ text "struct" $+$ braces (nest 4 (vcat . map (<> semi) . concat $ t)) <> semi
6894
555a8d8db228 Some more progress with pas2c
unc0rr
parents: 6893
diff changeset
   504
    type2C' (RangeType r) = return (text "int" <+>)
6838
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   505
    type2C' (Sequence ids) = do
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   506
        is <- mapM (id2C IOInsert . setBaseType bt) ids
6887
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   507
        return (text "enum" <+> (braces . vcat . punctuate comma . map (\(a, b) -> a <+> equals <+> text "0x" <> text (showHex b "")) $ zip is [1..]) <+>)
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   508
        where
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   509
            bt = BTEnum $ map (\(Identifier i _) -> map toLower i) ids
6894
555a8d8db228 Some more progress with pas2c
unc0rr
parents: 6893
diff changeset
   510
    type2C' (ArrayDecl Nothing t) = type2C (PointerTo t)
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   511
    type2C' (ArrayDecl (Just r) t) = do
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   512
        t' <- type2C t
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   513
        r' <- initExpr2C (InitRange r)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   514
        return $ \i -> t' i <> brackets r'
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   515
    type2C' (Set t) = return (text "<<set>>" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   516
    type2C' (FunctionType returnType params) = do
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   517
        t <- type2C returnType
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   518
        p <- withState' id $ functionParams2C params
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   519
        return (\i -> t empty <+> i <> parens p)
6980
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   520
    type2C' (DeriveType (InitBinOp _ _ i)) = type2C' (DeriveType i)
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   521
    type2C' (DeriveType (InitPrefixOp _ i)) = type2C' (DeriveType i)
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   522
    type2C' (DeriveType (InitNumber _)) = return (text "int" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   523
    type2C' (DeriveType (InitHexNumber _)) = return (text "int" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   524
    type2C' (DeriveType (InitFloat _)) = return (text "float" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   525
    type2C' (DeriveType (BuiltInFunction {})) = return (text "int" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   526
    type2C' (DeriveType (InitString {})) = return (text "string255" <+>)
6980
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   527
    type2C' (DeriveType r@(InitReference {})) = do
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   528
        initExpr2C r
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   529
        t <- gets lastType
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   530
        return (baseType2C (show r) t <+>)
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   531
    type2C' (DeriveType a) = error $ "Can't derive type from " ++ show a
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   532
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   533
phrase2C :: Phrase -> State RenderState Doc
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   534
phrase2C (Phrases p) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   535
    ps <- mapM phrase2C p
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   536
    return $ text "{" $+$ (nest 4 . vcat $ ps) $+$ text "}"
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   537
phrase2C (ProcCall f@(FunCall {}) []) = liftM (<> semi) $ ref2C f
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   538
phrase2C (ProcCall ref []) = liftM (<> semi) $ ref2CF ref
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   539
phrase2C (ProcCall ref params) = error $ "ProcCall"{-do
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   540
    r <- ref2C ref
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   541
    ps <- mapM expr2C params
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   542
    return $ r <> parens (hsep . punctuate (char ',') $ ps) <> semi -}
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   543
phrase2C (IfThenElse (expr) phrase1 mphrase2) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   544
    e <- expr2C expr
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   545
    p1 <- (phrase2C . wrapPhrase) phrase1
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   546
    el <- elsePart
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   547
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   548
        text "if" <> parens e $+$ p1 $+$ el
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   549
    where
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   550
    elsePart | isNothing mphrase2 = return $ empty
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   551
             | otherwise = liftM (text "else" $$) $ (phrase2C . wrapPhrase) (fromJust mphrase2)
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   552
phrase2C (Assignment ref expr) = do
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   553
    r <- ref2C ref
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   554
    t <- gets lastType
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   555
    e <- case (t, expr) of
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   556
         (BTFunction {}, (Reference r')) -> ref2C r'
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   557
         _ -> expr2C expr
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   558
    return $ r <+> text "=" <+> e <> semi
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   559
phrase2C (WhileCycle expr phrase) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   560
    e <- expr2C expr
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   561
    p <- phrase2C $ wrapPhrase phrase
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   562
    return $ text "while" <> parens e $$ p
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   563
phrase2C (SwitchCase expr cases mphrase) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   564
    e <- expr2C expr
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   565
    cs <- mapM case2C cases
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   566
    d <- dflt
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   567
    return $ 
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   568
        text "switch" <> parens e $+$ braces (nest 4 . vcat $ cs ++ d)
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   569
    where
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   570
    case2C :: ([InitExpression], Phrase) -> State RenderState Doc
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   571
    case2C (e, p) = do
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   572
        ies <- mapM range2C e
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   573
        ph <- phrase2C p
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   574
        return $ 
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   575
             vcat (map (\i -> text "case" <+> i <> colon) . concat $ ies) <> nest 4 (ph $+$ text "break;")
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   576
    dflt | isNothing mphrase = return []
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   577
         | otherwise = do
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   578
             ph <- mapM phrase2C $ fromJust mphrase
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   579
             return [text "default:" <+> nest 4 (vcat ph)]
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   580
                                         
6845
3cbfc35f6c2e - Handle multidimensional arrays better
unc0rr
parents: 6843
diff changeset
   581
phrase2C wb@(WithBlock ref p) = do
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   582
    r <- ref2C ref 
6845
3cbfc35f6c2e - Handle multidimensional arrays better
unc0rr
parents: 6843
diff changeset
   583
    t <- gets lastType
3cbfc35f6c2e - Handle multidimensional arrays better
unc0rr
parents: 6843
diff changeset
   584
    case t of
6859
cd0697c7e88b Unwind 'with' construction
unc0rr
parents: 6858
diff changeset
   585
        (BTRecord rs) -> withRecordNamespace (render r ++ ".") rs $ phrase2C $ wrapPhrase p
6845
3cbfc35f6c2e - Handle multidimensional arrays better
unc0rr
parents: 6843
diff changeset
   586
        a -> do
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   587
            error $ "'with' block referencing non-record type " ++ show a ++ "\n" ++ show wb
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   588
phrase2C (ForCycle i' e1' e2' p) = do
6663
2c4151afad0c Workaround pointers to not yet defined types
unc0rr
parents: 6653
diff changeset
   589
    i <- id2C IOLookup i'
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   590
    e1 <- expr2C e1'
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   591
    e2 <- expr2C e2'
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   592
    ph <- phrase2C (wrapPhrase p)
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   593
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   594
        text "for" <> (parens . hsep . punctuate (char ';') $ [i <+> text "=" <+> e1, i <+> text "<=" <+> e2, text "++" <> i])
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   595
        $$
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   596
        ph
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   597
phrase2C (RepeatCycle e' p') = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   598
    e <- expr2C e'
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   599
    p <- phrase2C (Phrases p')
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   600
    return $ text "do" <+> p <+> text "while" <> parens (text "!" <> parens e) <> semi
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   601
phrase2C NOP = return $ text ";"
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   602
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   603
phrase2C (BuiltInFunctionCall [] (SimpleReference (Identifier "exit" BTUnknown))) = return $ text "return" <> semi
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   604
phrase2C (BuiltInFunctionCall [e] (SimpleReference (Identifier "exit" BTUnknown))) = liftM (\e -> text "return" <> e <> semi) $ expr2C e
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   605
phrase2C (BuiltInFunctionCall [e] (SimpleReference (Identifier "dec" BTUnknown))) = liftM (\e -> text "--" <> e <> semi) $ expr2C e
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   606
phrase2C (BuiltInFunctionCall [e1, e2] (SimpleReference (Identifier "dec" BTUnknown))) = liftM2 (\a b -> a <> text " -= " <> b <> semi) (expr2C e1) (expr2C e2)
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   607
phrase2C (BuiltInFunctionCall [e] (SimpleReference (Identifier "inc" BTUnknown))) = liftM (\e -> text "++" <> e <> semi) $ expr2C e
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   608
phrase2C (BuiltInFunctionCall [e1, e2] (SimpleReference (Identifier "inc" BTUnknown))) = liftM2 (\a b -> a <+> text "+=" <+> b <> semi) (expr2C e1) (expr2C e2)
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   609
phrase2C a = error $ "phrase2C: " ++ show a
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   610
6307
25cfd9f4a567 Even more improvements to the parser and converter
unc0rr
parents: 6277
diff changeset
   611
wrapPhrase p@(Phrases _) = p
25cfd9f4a567 Even more improvements to the parser and converter
unc0rr
parents: 6277
diff changeset
   612
wrapPhrase p = Phrases [p]
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   613
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   614
expr2C :: Expression -> State RenderState Doc
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   615
expr2C (Expression s) = return $ text s
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   616
expr2C (BinOp op expr1 expr2) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   617
    e1 <- expr2C expr1
6860
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   618
    t1 <- gets lastType
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   619
    e2 <- expr2C expr2
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   620
    t2 <- gets lastType
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   621
    case (op2C op, t1, t2) of
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   622
        ("+", BTString, BTString) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strconcat" (BTFunction 2 BTString))
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   623
        ("+", BTString, BTChar) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strappend" (BTFunction 2 BTString))
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   624
        ("+", BTChar, BTString) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strprepend" (BTFunction 2 BTString))
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   625
        ("==", BTString, _) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strcompare" (BTFunction 2 BTBool))
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   626
        ("!=", BTString, _) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strncompare" (BTFunction 2 BTBool))
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   627
        ("&", BTBool, _) -> return $ parens e1 <+> text "&&" <+> parens e2
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   628
        ("|", BTBool, _) -> return $ parens e1 <+> text "||" <+> parens e2
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   629
        (o, _, _) | o `elem` boolOps -> do
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   630
                        modify(\s -> s{lastType = BTBool})
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   631
                        return $ parens e1 <+> text o <+> parens e2
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   632
                  | otherwise -> return $ parens e1 <+> text o <+> parens e2
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   633
    where
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   634
        boolOps = ["==", "!=", "<", ">", "<=", ">="]
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   635
expr2C (NumberLiteral s) = return $ text s
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   636
expr2C (FloatLiteral s) = return $ text s
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   637
expr2C (HexNumber s) = return $ text "0x" <> (text . map toLower $ s)
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   638
expr2C (StringLiteral [a]) = do
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   639
    modify(\s -> s{lastType = BTChar})
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   640
    return . quotes $ text [a]
6896
23b38e530967 Move all strings into constants to make them of string255 type
unc0rr
parents: 6895
diff changeset
   641
expr2C (StringLiteral s) = addStringConst s
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   642
expr2C (Reference ref) = ref2CF ref
6860
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   643
expr2C (PrefixOp op expr) = liftM (text (op2C op) <>) (expr2C expr)
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   644
expr2C Null = return $ text "NULL"
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   645
expr2C (CharCode a) = do
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   646
    modify(\s -> s{lastType = BTChar})
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   647
    return $ quotes $ text "\\x" <> text (showHex (read a) "")
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   648
expr2C (HexCharCode a) = return $ quotes $ text "\\x" <> text (map toLower a)
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   649
expr2C (SetExpression ids) = mapM (id2C IOLookup) ids >>= return . parens . hcat . punctuate (text " | ")
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   650
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   651
expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "ord" _))) = liftM parens $ expr2C e
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   652
expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "succ" _))) = liftM (<> text " + 1") $ expr2C e
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   653
expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "pred" _))) = liftM (<> text " - 1") $ expr2C e
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   654
expr2C (BuiltInFunCall params ref) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   655
    r <- ref2C ref 
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   656
    t <- gets lastType
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   657
    ps <- mapM expr2C params
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   658
    case t of
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   659
        BTFunction _ t' -> do
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   660
            modify (\s -> s{lastType = t'})
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   661
        _ -> error $ "BuiltInFunCall lastType: " ++ show t
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   662
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   663
        r <> parens (hsep . punctuate (char ',') $ ps)
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   664
expr2C a = error $ "Don't know how to render " ++ show a
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   665
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   666
ref2CF :: Reference -> State RenderState Doc
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   667
ref2CF (SimpleReference name) = do
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   668
    i <- id2C IOLookup name
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   669
    t <- gets lastType
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   670
    case t of
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   671
         BTFunction {} -> return $ i <> parens empty
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   672
         _ -> return $ i
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   673
ref2CF r = ref2C r
6307
25cfd9f4a567 Even more improvements to the parser and converter
unc0rr
parents: 6277
diff changeset
   674
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   675
ref2C :: Reference -> State RenderState Doc
6854
873929cbd54b Normalize RecordFields before conversion. Helps with namespaces problem.
unc0rr
parents: 6853
diff changeset
   676
-- rewrite into proper form
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   677
ref2C (RecordField ref1 (ArrayElement exprs ref2)) = ref2C $ ArrayElement exprs (RecordField ref1 ref2)
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   678
ref2C (RecordField ref1 (Dereference ref2)) = ref2C $ Dereference (RecordField ref1 ref2)
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   679
ref2C (RecordField ref1 (RecordField ref2 ref3)) = ref2C $ RecordField (RecordField ref1 ref2) ref3
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   680
ref2C (RecordField ref1 (FunCall params ref2)) = ref2C $ FunCall params (RecordField ref1 ref2)
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   681
ref2C (ArrayElement (a:b:xs) ref) = ref2C $ ArrayElement (b:xs) (ArrayElement [a] ref)
6854
873929cbd54b Normalize RecordFields before conversion. Helps with namespaces problem.
unc0rr
parents: 6853
diff changeset
   682
-- conversion routines
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   683
ref2C ae@(ArrayElement [expr] ref) = do
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   684
    e <- expr2C expr
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   685
    r <- ref2C ref 
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   686
    t <- gets lastType
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   687
    case t of
6893
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   688
         (BTArray _ _ t') -> modify (\st -> st{lastType = t'})
6967
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   689
         (BTFunctionReturn _ (BTArray _ _ t')) -> modify (\st -> st{lastType = t'})
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   690
         (BTFunctionReturn _ (BTString)) -> modify (\st -> st{lastType = BTChar})
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6835
diff changeset
   691
         (BTString) -> modify (\st -> st{lastType = BTChar})
6872
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   692
         (BTPointerTo t) -> do
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   693
                t'' <- fromPointer (show t) =<< gets lastType
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   694
                case t'' of
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   695
                     BTChar -> modify (\st -> st{lastType = BTChar})
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   696
                     a -> error $ "Getting element of " ++ show a ++ "\nReference: " ++ show ae
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   697
         a -> error $ "Getting element of " ++ show a ++ "\nReference: " ++ show ae
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   698
    case t of
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   699
         BTString ->  return $ r <> text ".s" <> brackets e
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   700
         _ -> return $ r <> brackets e
6663
2c4151afad0c Workaround pointers to not yet defined types
unc0rr
parents: 6653
diff changeset
   701
ref2C (SimpleReference name) = id2C IOLookup name
6843
59da15acb2f2 Finally fix the bug with pointer declarations polluting namespace with bad records
unc0rr
parents: 6838
diff changeset
   702
ref2C rf@(RecordField (Dereference ref1) ref2) = do
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   703
    r1 <- ref2C ref1 
6855
807156c01475 Finish the toughest part of the converter. Now it knows types of everything, so could correctly recognize bitwise operators and type convertions.
unc0rr
parents: 6854
diff changeset
   704
    t <- fromPointer (show ref1) =<< gets lastType
6843
59da15acb2f2 Finally fix the bug with pointer declarations polluting namespace with bad records
unc0rr
parents: 6838
diff changeset
   705
    r2 <- case t of
6859
cd0697c7e88b Unwind 'with' construction
unc0rr
parents: 6858
diff changeset
   706
        BTRecord rs -> withRecordNamespace "" rs $ ref2C ref2
6843
59da15acb2f2 Finally fix the bug with pointer declarations polluting namespace with bad records
unc0rr
parents: 6838
diff changeset
   707
        BTUnit -> withLastIdNamespace $ ref2C ref2
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   708
        a -> error $ "dereferencing from " ++ show a ++ "\n" ++ show rf
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   709
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   710
        r1 <> text "->" <> r2
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   711
ref2C rf@(RecordField ref1 ref2) = do
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   712
    r1 <- ref2C ref1
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   713
    t <- gets lastType
6817
daaf0834c4d2 - Apply unit's namespace to current scope when referencing unit name
unc0rr
parents: 6816
diff changeset
   714
    r2 <- case t of
6967
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   715
        BTFunctionReturn s (BTRecord rs) -> withRecordNamespace "" rs $ ref2C ref2       
6859
cd0697c7e88b Unwind 'with' construction
unc0rr
parents: 6858
diff changeset
   716
        BTRecord rs -> withRecordNamespace "" rs $ ref2C ref2
6967
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   717
        BTUnit -> withLastIdNamespace $ ref2C ref2        
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   718
        a -> error $ "dereferencing from " ++ show a ++ "\n" ++ show rf
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   719
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   720
        r1 <> text "." <> r2
6855
807156c01475 Finish the toughest part of the converter. Now it knows types of everything, so could correctly recognize bitwise operators and type convertions.
unc0rr
parents: 6854
diff changeset
   721
ref2C d@(Dereference ref) = do
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   722
    r <- ref2C ref
6855
807156c01475 Finish the toughest part of the converter. Now it knows types of everything, so could correctly recognize bitwise operators and type convertions.
unc0rr
parents: 6854
diff changeset
   723
    t <- fromPointer (show d) =<< gets lastType
6834
2af81d3b176d Resolve deferred type on dereference
unc0rr
parents: 6827
diff changeset
   724
    modify (\st -> st{lastType = t})
6859
cd0697c7e88b Unwind 'with' construction
unc0rr
parents: 6858
diff changeset
   725
    return $ (parens $ text "*" <> r)
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   726
ref2C f@(FunCall params ref) = do
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   727
    r <- ref2C ref
6826
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   728
    t <- gets lastType
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   729
    case t of
7019
333afe233886 Convert namespace from list into map in preparation for implementation of overloaded functions support. Greatly improve speed of rendering as a side effect (parse + render time reduced from 5:20 to 0:20)
unc0rr
parents: 7002
diff changeset
   730
        BTFunction _ t' -> do
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   731
            ps <- liftM (parens . hsep . punctuate (char ',')) $ mapM expr2C params
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   732
            modify (\s -> s{lastType = t'})
6826
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   733
            return $ r <> ps
6967
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   734
        BTFunctionReturn r t' -> do
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   735
            ps <- liftM (parens . hsep . punctuate (char ',')) $ mapM expr2C params
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   736
            modify (\s -> s{lastType = t'})
1224c6fb36c3 Support recurrent function calls. The code is kinda hackish and ugly, but I really spent a few hours thinking on a good solution.
unc0rr
parents: 6965
diff changeset
   737
            return $ text r <> ps
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   738
        _ -> case (ref, params) of
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   739
                  (SimpleReference i, [p]) -> ref2C $ TypeCast i p
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   740
                  _ -> error $ "ref2C FunCall erroneous type cast detected: " ++ show f ++ "\nType detected: " ++ show t
6826
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   741
        
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   742
ref2C (Address ref) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   743
    r <- ref2C ref
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   744
    return $ text "&" <> parens r
6902
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   745
ref2C (TypeCast t'@(Identifier i _) expr) = do
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   746
    case map toLower i of
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   747
        "pchar" -> ref2C $ FunCall [expr] (SimpleReference (Identifier "_pchar" $ BTPointerTo BTChar))
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   748
        a -> do
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   749
            e <- expr2C expr
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   750
            t <- id2C IOLookup t'    
7d4e5ce73b98 Make pas2c even smarter. Now uIO.c compiles fine, and only 1 warning when compiled with -Wall (clang).
unc0rr
parents: 6896
diff changeset
   751
            return $ parens t <> e
6467
090269e528df - Improve parsing of prefix operators
unc0rr
parents: 6455
diff changeset
   752
ref2C (RefExpression expr) = expr2C expr
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   753
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   754
6860
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   755
op2C :: String -> String
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   756
op2C "or" = "|"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   757
op2C "and" = "&"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   758
op2C "not" = "!"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   759
op2C "xor" = "^"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   760
op2C "div" = "/"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   761
op2C "mod" = "%"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   762
op2C "shl" = "<<"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   763
op2C "shr" = ">>"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   764
op2C "<>" = "!="
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   765
op2C "=" = "=="
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   766
op2C a = a
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   767