tools/pas2c.hs
author unc0rr
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permissions -rw-r--r--
pas2c stuff
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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 qualified Data.Set as Set
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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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    | IOLookupLast
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    | IOLookupFunction Int
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    | IODeferred
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type Record = (String, BaseType)
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type Records = Map.Map String [Record]
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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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        toMangle :: Set.Set String,
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        currentUnit :: String,
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        currentFunctionResult :: String,
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        namespaces :: Map.Map String Records
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    }
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emptyState = RenderState Map.empty "" BTUnknown [] 0 Set.empty "" ""
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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 f (emptyState nss)
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        where
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        f = do
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            checkDuplicateFunDecls tvs
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            mapM_ (tvar2C True) tvs                
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    toNamespace _ (Program {}) = Map.empty
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    toNamespace nss (Unit (Identifier i _) interface _ _ _) = 
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        currentScope $ execState (interface2C interface) (emptyState nss){currentUnit = map toLower i ++ "_"}
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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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   143
    st <- liftM f get
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   144
    let (a, s) = runState sf st
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   145
    modify(\st -> st{
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   146
        lastType = lastType s
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        , uniqCounter = uniqCounter s
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   148
        , stringConsts = stringConsts s
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   149
        })
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   150
    return a
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diff changeset
   151
6817
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   152
withLastIdNamespace :: State RenderState Doc -> State RenderState Doc
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   153
withLastIdNamespace f = do
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   154
    li <- gets lastIdentifier
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   155
    nss <- gets namespaces
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   156
    withState' (\st -> st{currentScope = fromMaybe Map.empty $ Map.lookup li (namespaces st)}) f
6827
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   157
6859
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   158
withRecordNamespace :: String -> [(String, BaseType)] -> State RenderState Doc -> State RenderState Doc
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   159
withRecordNamespace _ [] = error "withRecordNamespace: empty record"
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   160
withRecordNamespace prefix recs = withState' f
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   161
    where
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   162
        f st = st{currentScope = Map.unionWith un records (currentScope st), currentUnit = ""}
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   163
        records = Map.fromList $ map (\(a, b) -> (map toLower a, [(prefix ++ a, b)])) recs
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   164
        un [a] b = a : b
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   165
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   166
toCFiles :: Map.Map String Records -> (String, PascalUnit) -> IO ()
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   167
toCFiles _ (_, System _) = return ()
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   168
toCFiles ns p@(fn, pu) = do
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   169
    hPutStrLn stderr $ "Rendering '" ++ fn ++ "'..."
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   170
    toCFiles' p
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   171
    where
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   172
    toCFiles' (fn, p@(Program {})) = writeFile (fn ++ ".c") $ (render2C initialState . pascal2C) p
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   173
    toCFiles' (fn, (Unit unitId@(Identifier i _) interface implementation _ _)) = do
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   174
        let (a, s) = runState (id2C IOInsert (setBaseType BTUnit unitId) >> interface2C interface) initialState{currentUnit = map toLower i ++ "_"}
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   175
        writeFile (fn ++ ".h") $ "#pragma once\n\n#include \"pas2c.h\"\n\n" ++ (render (a $+$ text ""))
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   176
        writeFile (fn ++ ".c") $ "#include \"" ++ fn ++ ".h\"\n" ++ (render2C s . implementation2C) implementation
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   177
    initialState = emptyState ns
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   178
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   179
    render2C :: RenderState -> State RenderState Doc -> String
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    render2C a = render . ($+$ empty) . flip evalState a
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   181
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   182
usesFiles :: PascalUnit -> [String]
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   183
usesFiles (Program _ (Implementation uses _) _) = "pas2cSystem" : uses2List uses
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   184
usesFiles (Unit _ (Interface uses1 _) (Implementation uses2 _) _ _) = "pas2cSystem" : uses2List uses1 ++ uses2List uses2
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   185
usesFiles (System {}) = []
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   186
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
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   187
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   188
pascal2C :: PascalUnit -> State RenderState Doc
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   189
pascal2C (Unit _ interface implementation init fin) =
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   190
    liftM2 ($+$) (interface2C interface) (implementation2C implementation)
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   191
    
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   192
pascal2C (Program _ implementation mainFunction) = do
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   193
    impl <- implementation2C implementation
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   194
    [main] <- tvar2C True 
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   195
        (FunctionDeclaration (Identifier "main" BTInt) (SimpleType $ Identifier "int" BTInt) [] (Just (TypesAndVars [], mainFunction)))
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   196
    return $ impl $+$ main
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diff changeset
   197
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   198
    
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   199
    
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   200
interface2C :: Interface -> State RenderState Doc
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   201
interface2C (Interface uses tvars) = do
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   202
    u <- uses2C uses
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   203
    tv <- typesAndVars2C True tvars
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   204
    r <- renderStringConsts
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   205
    return (u $+$ r $+$ tv)
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diff changeset
   206
    
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   207
implementation2C :: Implementation -> State RenderState Doc
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   208
implementation2C (Implementation uses tvars) = do
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   209
    u <- uses2C uses
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   210
    tv <- typesAndVars2C True tvars
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   211
    r <- renderStringConsts
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   212
    return (u $+$ r $+$ tv)
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diff changeset
   213
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checkDuplicateFunDecls :: [TypeVarDeclaration] -> State RenderState ()
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   215
checkDuplicateFunDecls tvs =
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   216
    modify $ \s -> s{toMangle = Map.keysSet . Map.filter (> 1) . foldr ins initMap $ tvs}
7032
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diff changeset
   217
    where
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   218
        initMap = Map.empty
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   219
        --initMap = Map.fromList [("reset", 2)]
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   220
        ins (FunctionDeclaration (Identifier i _) _ _ _) m = Map.insertWith (+) (map toLower i) 1 m
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   221
        ins _ m = m
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parents:
diff changeset
   222
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   223
typesAndVars2C :: Bool -> TypesAndVars -> State RenderState Doc
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   224
typesAndVars2C b (TypesAndVars ts) = do
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   225
    checkDuplicateFunDecls ts
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   226
    liftM (vcat . map (<> semi) . concat) $ mapM (tvar2C b) ts
6273
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parents:
diff changeset
   227
6816
572571ea945e Fix wrong type returned from id2C
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   228
setBaseType :: BaseType -> Identifier -> Identifier
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   229
setBaseType bt (Identifier i _) = Identifier i bt
572571ea945e Fix wrong type returned from id2C
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diff changeset
   230
6512
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   231
uses2C :: Uses -> State RenderState Doc
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   232
uses2C uses@(Uses unitIds) = do
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   233
    mapM_ injectNamespace (Identifier "pas2cSystem" undefined : unitIds)
6816
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   234
    mapM_ (id2C IOInsert . setBaseType BTUnit) unitIds
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   235
    return $ vcat . map (\i -> text $ "#include \"" ++ i ++ ".h\"") $ uses2List uses
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   236
    where
6517
67ea290ea843 Format code a bit
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   237
    injectNamespace (Identifier i _) = do
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   238
        getNS <- gets (flip Map.lookup . namespaces)
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   239
        modify (\s -> s{currentScope = Map.unionWith (++) (fromMaybe Map.empty (getNS i)) $ currentScope s})
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   240
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
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   241
uses2List :: Uses -> [String]
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e1f0058cfedd Add base type tags to identifiers
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   242
uses2List (Uses ids) = map (\(Identifier i _) -> i) ids
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parents:
diff changeset
   243
6509
648caa66991b Convert into Reader monad
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diff changeset
   244
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   245
id2C :: InsertOption -> Identifier -> State RenderState Doc
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   246
id2C IOInsert (Identifier i t) = do
6843
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diff changeset
   247
    ns <- gets currentScope
7032
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   248
    tom <- gets (Set.member n . toMangle)
7033
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   249
    cu <- gets currentUnit
7032
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   250
    let i' = case (t, tom) of
7033
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   251
            (BTFunction p _, True) -> cu ++ i ++ ('_' : show p)
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   252
            (BTFunction _ _, _) -> cu ++ i
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diff changeset
   253
            _ -> i
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   254
    modify (\s -> s{currentScope = Map.insertWith (++) n [(i', t)] (currentScope s), lastIdentifier = n})
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   255
    return $ text i'
6837
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diff changeset
   256
    where
a137733c5776 Much better types handling, work correctly with functions
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   257
        n = map toLower i
7042
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unc0rr
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diff changeset
   258
id2C IOLookup i = id2CLookup head i
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
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diff changeset
   259
id2C IOLookupLast i = id2CLookup last i
7032
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   260
id2C (IOLookupFunction params) (Identifier i t) = do
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   261
    let i' = map toLower i
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   262
    v <- gets $ Map.lookup i' . currentScope
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diff changeset
   263
    lt <- gets lastType
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diff changeset
   264
    if isNothing v then 
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   265
        error $ "Not defined: '" ++ i' ++ "'\n" ++ show lt ++ "\nwith num of params = " ++ show params ++ "\n" ++ show v
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diff changeset
   266
        else 
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   267
        let vv = fromMaybe (head $ fromJust v) . find checkParam $ fromJust v in 
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   268
            modify (\s -> s{lastType = snd vv, lastIdentifier = fst vv}) >> (return . text . fst $ vv)
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
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diff changeset
   269
    where
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   270
        checkParam (_, BTFunction p _) = p == params
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   271
        checkParam _ = False
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unc0rr
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   272
id2C IODeferred (Identifier i t) = do
2c4151afad0c Workaround pointers to not yet defined types
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   273
    let i' = map toLower i
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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
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   274
    v <- gets $ Map.lookup i' . currentScope
6663
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unc0rr
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diff changeset
   275
    if (isNothing v) then
7034
e3639ce1d4f8 (PointerTo (SimpleType _)) could be a pointer to a non-struct type
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diff changeset
   276
        modify (\s -> s{lastType = BTUnknown, lastIdentifier = i}) >> return (text i)
6663
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diff changeset
   277
        else
7034
e3639ce1d4f8 (PointerTo (SimpleType _)) could be a pointer to a non-struct type
unc0rr
parents: 7033
diff changeset
   278
        let vv = head $ fromJust v in modify (\s -> s{lastType = snd vv, lastIdentifier = fst vv}) >> (return . text . fst $ vv)
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   279
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
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diff changeset
   280
id2CLookup :: ([Record] -> Record) -> Identifier -> State RenderState Doc
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
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   281
id2CLookup f (Identifier i _) = do
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
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   282
    let i' = map toLower i
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
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diff changeset
   283
    v <- gets $ Map.lookup i' . currentScope
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
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diff changeset
   284
    lt <- gets lastType
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   285
    if isNothing v then 
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   286
        error $ "Not defined: '" ++ i' ++ "'\n" ++ show lt
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   287
        else 
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   288
        let vv = f $ fromJust v in modify (\s -> s{lastType = snd vv, lastIdentifier = fst vv}) >> (return . text . fst $ vv)
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   289
        
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   290
        
6653
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   291
id2CTyped :: TypeDecl -> Identifier -> State RenderState Doc
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   292
id2CTyped t (Identifier i _) = do
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   293
    tb <- resolveType t
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   294
    case (t, tb) of 
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
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diff changeset
   295
        (_, BTUnknown) -> 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
   296
            error $ "id2CTyped: type BTUnknown for " ++ show i ++ "\ntype: " ++ show t
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   297
        (SimpleType {}, BTRecord _ r) -> do
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   298
            ts <- type2C t
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   299
            id2C IOInsert (Identifier i (BTRecord (render $ ts empty) r))
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   300
        (_, BTRecord _ r) -> do
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   301
            ts <- type2C t
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   302
            id2C IOInsert (Identifier i (BTRecord i r))
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   303
        _ -> id2C IOInsert (Identifier i tb)
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   304
    
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
   305
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
unc0rr
parents: 6618
diff changeset
   306
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
unc0rr
parents: 6618
diff changeset
   307
resolveType :: TypeDecl -> State RenderState BaseType
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
unc0rr
parents: 6618
diff changeset
   308
resolveType st@(SimpleType (Identifier i _)) = do
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
unc0rr
parents: 6618
diff changeset
   309
    let i' = map toLower i
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
   310
    v <- gets $ Map.lookup i' . currentScope
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
   311
    if isJust v then return . snd . head $ fromJust v else return $ f i'
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
   312
    where
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
unc0rr
parents: 6618
diff changeset
   313
    f "integer" = BTInt
a447993f2ad7 Further work on propagating types. Now it hopefully works fully, just need to annotate namespace with types first.
unc0rr
parents: 6618
diff changeset
   314
    f "pointer" = BTPointerTo BTVoid
6635
c2fa29fe2a58 Some progress, still can't find the source of bad behavior
unc0rr
parents: 6626
diff changeset
   315
    f "boolean" = BTBool
6649
7f78e8a6db69 Fix a bug with type declaration trying to resolve type being declared
unc0rr
parents: 6635
diff changeset
   316
    f "float" = BTFloat
7f78e8a6db69 Fix a bug with type declaration trying to resolve type being declared
unc0rr
parents: 6635
diff changeset
   317
    f "char" = BTChar
7f78e8a6db69 Fix a bug with type declaration trying to resolve type being declared
unc0rr
parents: 6635
diff changeset
   318
    f "string" = BTString
6635
c2fa29fe2a58 Some progress, still can't find the source of bad behavior
unc0rr
parents: 6626
diff changeset
   319
    f _ = error $ "Unknown system type: " ++ show st
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   320
resolveType (PointerTo (SimpleType (Identifier i _))) = return . BTPointerTo $ BTUnresolved (map toLower i)
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   321
resolveType (PointerTo t) = liftM BTPointerTo $ resolveType t
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
   322
resolveType (RecordType tv mtvs) = do
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   323
    tvs <- mapM f (concat $ tv : fromMaybe [] mtvs)
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   324
    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
   325
    where
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   326
        f :: TypeVarDeclaration -> State RenderState [(String, BaseType)]
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   327
        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
   328
resolveType (ArrayDecl (Just i) t) = do
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   329
    t' <- resolveType t
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   330
    return $ BTArray i BTInt t' 
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   331
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
   332
resolveType (FunctionType t a) = liftM (BTFunction (length a)) $ resolveType t
6835
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   333
resolveType (DeriveType (InitHexNumber _)) = return BTInt
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   334
resolveType (DeriveType (InitNumber _)) = return BTInt
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   335
resolveType (DeriveType (InitFloat _)) = return BTFloat
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   336
resolveType (DeriveType (InitString _)) = return BTString
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   337
resolveType (DeriveType (InitBinOp {})) = return BTInt
7151
ec15d9e1a7e3 pas2c stuff
unc0rr
parents: 7134
diff changeset
   338
resolveType (DeriveType (InitPrefixOp _ e)) = initExpr2C e >> gets lastType
6835
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   339
resolveType (DeriveType (BuiltInFunction{})) = return BTInt
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   340
resolveType (DeriveType (InitReference (Identifier{}))) = return BTBool -- TODO: derive from actual type
00b2fd32305d Better deriving, some fixes
unc0rr
parents: 6834
diff changeset
   341
resolveType (DeriveType _) = return BTUnknown
6635
c2fa29fe2a58 Some progress, still can't find the source of bad behavior
unc0rr
parents: 6626
diff changeset
   342
resolveType (String _) = return BTString
6826
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   343
resolveType VoidType = return BTVoid
6653
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   344
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
   345
resolveType (RangeType _) = return $ BTVoid
6653
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   346
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
   347
   
6834
2af81d3b176d Resolve deferred type on dereference
unc0rr
parents: 6827
diff changeset
   348
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
   349
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
   350
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
   351
    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
   352
    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
   353
        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
   354
        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
   355
        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
   356
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
   357
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
   358
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
   359
fromPointer s (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
   360
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
   361
    error $ "Dereferencing from non-pointer type " ++ show t ++ "\n" ++ s
6834
2af81d3b176d Resolve deferred type on dereference
unc0rr
parents: 6827
diff changeset
   362
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   363
    
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   364
functionParams2C params = liftM (hcat . punctuate comma . concat) $ mapM (tvar2C False) params
6834
2af81d3b176d Resolve deferred type on dereference
unc0rr
parents: 6827
diff changeset
   365
7032
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   366
numberOfDeclarations :: [TypeVarDeclaration] -> Int
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   367
numberOfDeclarations = sum . map cnt
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   368
    where
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   369
        cnt (VarDeclaration _ (ids, _) _) = length ids
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   370
        cnt _ = 1
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   371
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   372
fun2C :: Bool -> String -> TypeVarDeclaration -> State RenderState [Doc]
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   373
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
   374
    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
   375
    t'<- gets lastType
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   376
    p <- withState' id $ functionParams2C params
7032
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   377
    n <- id2C IOInsert $ setBaseType (BTFunction (numberOfDeclarations params) t') name
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   378
    return [t empty <+> n <> parens p]
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   379
    
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   380
fun2C True rv (FunctionDeclaration name returnType params (Just (tvars, phrase))) = do
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   381
    let res = docToLower $ text rv <> text "_result"
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6835
diff changeset
   382
    t <- type2C returnType
6837
a137733c5776 Much better types handling, work correctly with functions
unc0rr
parents: 6836
diff changeset
   383
    t'<- gets lastType
7032
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   384
    n <- id2C IOInsert $ setBaseType (BTFunction (numberOfDeclarations params) t') name
7134
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   385
    
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   386
    let isVoid = case returnType of
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   387
            VoidType -> True
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   388
            _ -> False
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   389
            
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   390
    (p, ph) <- withState' (\st -> st{currentScope = Map.insertWith un (map toLower rv) [(render res, t')] $ currentScope st
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   391
            , currentFunctionResult = if isVoid then [] else render res}) $ do
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   392
        p <- functionParams2C params
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   393
        ph <- liftM2 ($+$) (typesAndVars2C False tvars) (phrase2C' phrase)
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   394
        return (p, ph)
7134
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   395
        
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   396
    let phrasesBlock = if isVoid then ph else t empty <+> res <> semi $+$ ph $+$ text "return" <+> res <> semi
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   397
    
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   398
    return [ 
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   399
        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
   400
        $+$
6499
33180b479efa Start converting into monadic code using Reader monad (will be used to store information about namespace)
unc0rr
parents: 6489
diff changeset
   401
        text "{" 
33180b479efa Start converting into monadic code using Reader monad (will be used to store information about namespace)
unc0rr
parents: 6489
diff changeset
   402
        $+$ 
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6835
diff changeset
   403
        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
   404
        $+$
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   405
        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
   406
    where
6499
33180b479efa Start converting into monadic code using Reader monad (will be used to store information about namespace)
unc0rr
parents: 6489
diff changeset
   407
    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
   408
    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
   409
    un [a] b = a : b
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   410
    
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   411
fun2C False _ (FunctionDeclaration (Identifier name _) _ _ _) = error $ "nested functions not allowed: " ++ name
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   412
fun2C _ tv _ = error $ "fun2C: I don't render " ++ show tv
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   413
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   414
tvar2C :: Bool -> TypeVarDeclaration -> State RenderState [Doc]
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   415
tvar2C b f@(FunctionDeclaration (Identifier name _) _ _ _) =
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   416
    fun2C b name f
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   417
tvar2C _ td@(TypeDeclaration i' t) = do
6653
d45b6dbd2ad6 Move a bit further
unc0rr
parents: 6649
diff changeset
   418
    i <- id2CTyped t i'
7039
e7dc6ddd1e29 Handle function type differently
unc0rr
parents: 7038
diff changeset
   419
    tp <- type2C t
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   420
    return [text "typedef" <+> tp i]
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   421
    
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   422
tvar2C _ (VarDeclaration isConst (ids, t) mInitExpr) = do
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   423
    t' <- liftM (((if isConst then text "const" else empty) <+>) . ) $ type2C t
6980
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   424
    ie <- initExpr mInitExpr
6979
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   425
    lt <- gets lastType
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   426
    case (isConst, lt, ids, mInitExpr) of
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   427
         (True, BTInt, [i], Just _) -> do
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   428
             i' <- id2CTyped t i
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   429
             return [text "enum" <> braces (i' <+> ie)]
7002
5d817ba976f7 Render float consts into defines
unc0rr
parents: 6980
diff changeset
   430
         (True, BTFloat, [i], Just e) -> do
5d817ba976f7 Render float consts into defines
unc0rr
parents: 6980
diff changeset
   431
             i' <- id2CTyped t i
5d817ba976f7 Render float consts into defines
unc0rr
parents: 6980
diff changeset
   432
             ie <- initExpr2C e
5d817ba976f7 Render float consts into defines
unc0rr
parents: 6980
diff changeset
   433
             return [text "#define" <+> i' <+> parens ie <> text "\n"]
7039
e7dc6ddd1e29 Handle function type differently
unc0rr
parents: 7038
diff changeset
   434
         (_, BTFunction{}, _, Nothing) -> liftM (map(\i -> t' $ text "*" <+> i)) $ mapM (id2CTyped t) ids
6979
cd28fe36170a Declare const ints as enums
unc0rr
parents: 6967
diff changeset
   435
         _ -> liftM (map(\i -> t' i <+> ie)) $ mapM (id2CTyped t) ids
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   436
    where
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   437
    initExpr Nothing = return $ empty
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   438
    initExpr (Just e) = liftM (text "=" <+>) (initExpr2C e)
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   439
    
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   440
tvar2C f (OperatorDeclaration op (Identifier i _) ret params body) = do
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   441
    r <- op2CTyped op (extractTypes params)
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   442
    fun2C f i (FunctionDeclaration r ret params body)
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   443
6517
67ea290ea843 Format code a bit
unc0rr
parents: 6516
diff changeset
   444
    
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   445
op2CTyped :: String -> [TypeDecl] -> State RenderState Identifier
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   446
op2CTyped op t = do
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   447
    t' <- liftM (render . hcat . punctuate (char '_') . map (\t -> t empty)) $ mapM type2C t
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   448
    bt <- gets lastType
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   449
    return $ Identifier (t' ++ "_op_" ++ opStr) bt
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   450
    where 
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   451
    opStr = case op of
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   452
                    "+" -> "add"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   453
                    "-" -> "sub"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   454
                    "*" -> "mul"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   455
                    "/" -> "div"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   456
                    "=" -> "eq"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   457
                    "<" -> "lt"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   458
                    ">" -> "gt"
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   459
                    "<>" -> "neq"
6880
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   460
                    _ -> error $ "op2CTyped: unknown op '" ++ op ++ "'"
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   461
    
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   462
extractTypes :: [TypeVarDeclaration] -> [TypeDecl]
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   463
extractTypes = concatMap f
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   464
    where
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   465
        f (VarDeclaration _ (ids, t) _) = replicate (length ids) t
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   466
        f a = error $ "extractTypes: can't extract from " ++ show a
34d3bc7bd8b1 Support operators declarations
unc0rr
parents: 6878
diff changeset
   467
7052
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   468
initExpr2C, initExpr2C' :: InitExpression -> State RenderState Doc
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   469
initExpr2C (InitArray values) = liftM (braces . vcat . punctuate comma) $ mapM initExpr2C values
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   470
initExpr2C a = initExpr2C' a
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   471
initExpr2C' InitNull = return $ text "NULL"
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   472
initExpr2C' (InitAddress expr) = liftM ((<>) (text "&")) (initExpr2C' expr)
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   473
initExpr2C' (InitPrefixOp op expr) = liftM (text (op2C op) <>) (initExpr2C' expr)
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   474
initExpr2C' (InitBinOp op expr1 expr2) = do
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   475
    e1 <- initExpr2C' expr1
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   476
    e2 <- initExpr2C' expr2
6860
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   477
    return $ parens $ e1 <+> text (op2C op) <+> e2
7052
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   478
initExpr2C' (InitNumber s) = return $ text s
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   479
initExpr2C' (InitFloat s) = return $ text s
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   480
initExpr2C' (InitHexNumber s) = return $ text "0x" <> (text . map toLower $ s)
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   481
initExpr2C' (InitString [a]) = return . quotes $ text [a]
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   482
initExpr2C' (InitString s) = return $ strInit s
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   483
initExpr2C' (InitChar a) = return $ quotes $ text "\\x" <> text (showHex (read a) "")
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   484
initExpr2C' (InitReference i) = id2C IOLookup i
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   485
initExpr2C' (InitRecord fields) = do
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   486
    (fs :: [Doc]) <- mapM (\(Identifier a _, b) -> liftM (text "." <> text a <+> equals <+>) $ initExpr2C b) fields
6886
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   487
    return $ lbrace $+$ (nest 4 . vcat . punctuate comma $ fs) $+$ rbrace
7052
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   488
initExpr2C' (InitArray [value]) = initExpr2C value
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   489
initExpr2C' r@(InitRange (Range i@(Identifier i' _))) = do
6891
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   490
    id2C IOLookup i
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   491
    t <- gets lastType
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   492
    case t of
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   493
         BTEnum s -> return . int $ length s
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   494
         BTInt -> case i' of
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   495
                       "byte" -> return $ int 256
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   496
                       _ -> error $ "InitRange identifier: " ++ i'
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   497
         _ -> error $ "InitRange: " ++ show r
7052
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   498
initExpr2C' (InitRange (RangeFromTo (InitNumber "0") r)) = initExpr2C $ BuiltInFunction "succ" [r]
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   499
initExpr2C' (InitRange (RangeFromTo (InitChar "0") (InitChar r))) = initExpr2C $ BuiltInFunction "succ" [InitNumber r]
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   500
initExpr2C' (InitRange a) = error $ show a --return $ text "<<range>>"
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   501
initExpr2C' (InitSet []) = return $ text "0"
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   502
initExpr2C' (InitSet a) = return $ text "<<set>>"
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   503
initExpr2C' (BuiltInFunction "low" [InitReference e]) = return $ 
6887
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   504
    case e of
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   505
         (Identifier "LongInt" _) -> int (-2^31)
6893
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   506
         (Identifier "SmallInt" _) -> int (-2^15)
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   507
         _ -> error $ "BuiltInFunction 'low': " ++ show e
7052
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   508
initExpr2C' (BuiltInFunction "high" [e]) = do
6893
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   509
    initExpr2C e
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   510
    t <- gets lastType
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   511
    case t of
7052
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   512
         (BTArray i _ _) -> initExpr2C' $ BuiltInFunction "pred" [InitRange i]
6893
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   513
         a -> error $ "BuiltInFunction 'high': " ++ show a
7052
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   514
initExpr2C' (BuiltInFunction "succ" [BuiltInFunction "pred" [e]]) = initExpr2C' e
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   515
initExpr2C' (BuiltInFunction "pred" [BuiltInFunction "succ" [e]]) = initExpr2C' e
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   516
initExpr2C' (BuiltInFunction "succ" [e]) = liftM (<> text " + 1") $ initExpr2C' e
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   517
initExpr2C' (BuiltInFunction "pred" [e]) = liftM (<> text " - 1") $ initExpr2C' e
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   518
initExpr2C' b@(BuiltInFunction _ _) = error $ show b    
cefb73639f70 Be more wise about constant initialization expressions being not arrays
unc0rr
parents: 7046
diff changeset
   519
initExpr2C' a = error $ "initExpr2C: don't know how to render " ++ show a
6391
bd5851ab3157 - Parse sets initialization
unc0rr
parents: 6355
diff changeset
   520
6887
19d77932ea91 Render some builtin functions
unc0rr
parents: 6886
diff changeset
   521
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   522
range2C :: InitExpression -> State RenderState [Doc]
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   523
range2C (InitString [a]) = return [quotes $ text [a]]
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   524
range2C (InitRange (Range i)) = liftM (flip (:) []) $ id2C IOLookup i
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   525
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
   526
range2C a = liftM (flip (:) []) $ initExpr2C a
6391
bd5851ab3157 - Parse sets initialization
unc0rr
parents: 6355
diff changeset
   527
6980
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   528
baseType2C :: String -> BaseType -> Doc
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   529
baseType2C _ BTFloat = text "float"
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   530
baseType2C _ BTBool = text "bool"
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   531
baseType2C _ BTString = text "string255"
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   532
baseType2C s a = error $ "baseType2C: " ++ show a ++ "\n" ++ s
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   533
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   534
type2C :: TypeDecl -> State RenderState (Doc -> Doc)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   535
type2C (SimpleType i) = liftM (\i a -> i <+> a) $ id2C IOLookup i
6838
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   536
type2C t = do
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   537
    r <- type2C' t
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   538
    rt <- resolveType t
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   539
    modify (\st -> st{lastType = rt})
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   540
    return r
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   541
    where
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   542
    type2C' VoidType = return (text "void" <+>)
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   543
    type2C' (String l) = return (text "string255" <+>)--return (text ("string" ++ show l) <+>)
7034
e3639ce1d4f8 (PointerTo (SimpleType _)) could be a pointer to a non-struct type
unc0rr
parents: 7033
diff changeset
   544
    type2C' (PointerTo (SimpleType i)) = do
e3639ce1d4f8 (PointerTo (SimpleType _)) could be a pointer to a non-struct type
unc0rr
parents: 7033
diff changeset
   545
        i' <- id2C IODeferred i
e3639ce1d4f8 (PointerTo (SimpleType _)) could be a pointer to a non-struct type
unc0rr
parents: 7033
diff changeset
   546
        lt <- gets lastType
e3639ce1d4f8 (PointerTo (SimpleType _)) could be a pointer to a non-struct type
unc0rr
parents: 7033
diff changeset
   547
        case lt of
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   548
             BTRecord _ _ -> return $ \a -> text "struct __" <> i' <+> text "*" <+> a
7034
e3639ce1d4f8 (PointerTo (SimpleType _)) could be a pointer to a non-struct type
unc0rr
parents: 7033
diff changeset
   549
             BTUnknown -> return $ \a -> text "struct __" <> i' <+> text "*" <+> a
e3639ce1d4f8 (PointerTo (SimpleType _)) could be a pointer to a non-struct type
unc0rr
parents: 7033
diff changeset
   550
             _ -> return $ \a -> i' <+> text "*" <+> a
6891
ab9843957664 Improve rendering of function types, ranges, and more
unc0rr
parents: 6887
diff changeset
   551
    type2C' (PointerTo t) = liftM (\t a -> t (parens $ text "*" <> a)) $ type2C t
6838
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   552
    type2C' (RecordType tvs union) = do
7040
4aff2da0d0b3 Render function variables in struct with no mangling. 13 C units are compilable now.
unc0rr
parents: 7039
diff changeset
   553
        t <- withState' f $ mapM (tvar2C False) tvs
6886
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   554
        u <- unions
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   555
        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
   556
        where
7040
4aff2da0d0b3 Render function variables in struct with no mangling. 13 C units are compilable now.
unc0rr
parents: 7039
diff changeset
   557
            f s = s{currentUnit = ""}
6886
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   558
            unions = case union of
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   559
                     Nothing -> return empty
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   560
                     Just a -> do
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   561
                         structs <- mapM struct2C a
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   562
                         return $ text "union" $+$ braces (nest 4 $ vcat structs) <> semi
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   563
            struct2C tvs = do
7040
4aff2da0d0b3 Render function variables in struct with no mangling. 13 C units are compilable now.
unc0rr
parents: 7039
diff changeset
   564
                t <- withState' f $ mapM (tvar2C False) tvs
6886
4463ee51c9ec Render unions
unc0rr
parents: 6883
diff changeset
   565
                return $ text "struct" $+$ braces (nest 4 (vcat . map (<> semi) . concat $ t)) <> semi
6894
555a8d8db228 Some more progress with pas2c
unc0rr
parents: 6893
diff changeset
   566
    type2C' (RangeType r) = return (text "int" <+>)
6838
b1a0e7a52c04 More clean namespace, some fixes
unc0rr
parents: 6837
diff changeset
   567
    type2C' (Sequence ids) = do
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   568
        is <- mapM (id2C IOInsert . setBaseType bt) ids
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   569
        return (text "enum" <+> (braces . vcat . punctuate comma . map (\(a, b) -> a <+> equals <+> text "0x" <> text (showHex b "")) $ zip is [0..]) <+>)
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   570
        where
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   571
            bt = BTEnum $ map (\(Identifier i _) -> map toLower i) ids
6894
555a8d8db228 Some more progress with pas2c
unc0rr
parents: 6893
diff changeset
   572
    type2C' (ArrayDecl Nothing t) = type2C (PointerTo t)
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   573
    type2C' (ArrayDecl (Just r) t) = do
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   574
        t' <- type2C t
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   575
        lt <- gets lastType
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   576
        ft <- case lt of
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   577
                BTFunction {} -> type2C (PointerTo t)
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   578
                _ -> return t'
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   579
        r' <- initExpr2C (InitRange r)
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   580
        return $ \i -> ft i <> brackets r'
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   581
    type2C' (Set t) = return (text "<<set>>" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   582
    type2C' (FunctionType returnType params) = do
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   583
        t <- type2C returnType
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   584
        p <- withState' id $ functionParams2C params
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   585
        return (\i -> t empty <+> i <> parens p)
6980
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   586
    type2C' (DeriveType (InitBinOp _ _ i)) = type2C' (DeriveType i)
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   587
    type2C' (DeriveType (InitPrefixOp _ i)) = type2C' (DeriveType i)
6878
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   588
    type2C' (DeriveType (InitNumber _)) = return (text "int" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   589
    type2C' (DeriveType (InitHexNumber _)) = return (text "int" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   590
    type2C' (DeriveType (InitFloat _)) = return (text "float" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   591
    type2C' (DeriveType (BuiltInFunction {})) = return (text "int" <+>)
0af34406b83d Improve rendering of function types, arrays, and more
unc0rr
parents: 6875
diff changeset
   592
    type2C' (DeriveType (InitString {})) = return (text "string255" <+>)
6980
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   593
    type2C' (DeriveType r@(InitReference {})) = do
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   594
        initExpr2C r
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   595
        t <- gets lastType
07a710e22846 Better type deriving
unc0rr
parents: 6979
diff changeset
   596
        return (baseType2C (show r) t <+>)
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   597
    type2C' (DeriveType a) = error $ "Can't derive type from " ++ show a
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   598
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   599
phrase2C :: Phrase -> State RenderState Doc
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   600
phrase2C (Phrases p) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   601
    ps <- mapM phrase2C p
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   602
    return $ text "{" $+$ (nest 4 . vcat $ ps) $+$ text "}"
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   603
phrase2C (ProcCall f@(FunCall {}) []) = liftM (<> semi) $ ref2C f
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   604
phrase2C (ProcCall ref []) = liftM (<> semi) $ ref2CF ref
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   605
phrase2C (ProcCall ref params) = error $ "ProcCall"{-do
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   606
    r <- ref2C ref
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   607
    ps <- mapM expr2C params
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   608
    return $ r <> parens (hsep . punctuate (char ',') $ ps) <> semi -}
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   609
phrase2C (IfThenElse (expr) phrase1 mphrase2) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   610
    e <- expr2C expr
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   611
    p1 <- (phrase2C . wrapPhrase) phrase1
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   612
    el <- elsePart
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   613
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   614
        text "if" <> parens e $+$ p1 $+$ el
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   615
    where
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   616
    elsePart | isNothing mphrase2 = return $ empty
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   617
             | otherwise = liftM (text "else" $$) $ (phrase2C . wrapPhrase) (fromJust mphrase2)
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   618
phrase2C (Assignment ref expr) = do
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   619
    r <- ref2C ref
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   620
    t <- gets lastType
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   621
    case (t, expr) of
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   622
        (BTFunction {}, (Reference r')) -> do
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   623
            e <- ref2C r'
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   624
            return $ r <+> text "=" <+> e <> semi
7134
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   625
        (BTString, _) -> do
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   626
            e <- expr2C expr
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   627
            lt <- gets lastType
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   628
            case lt of
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   629
                -- assume pointer to char for simplicity
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   630
                BTPointerTo _ -> do
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   631
                    e <- expr2C $ Reference $ FunCall [Reference $ RefExpression expr] (SimpleReference (Identifier "pchar2str" BTUnknown))
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   632
                    return $ r <+> text "=" <+> e <> semi
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   633
                BTString -> do
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   634
                    e <- expr2C expr
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   635
                    return $ r <+> text "=" <+> e <> semi
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   636
                _ -> error $ "Assignment to string from " ++ show lt
7151
ec15d9e1a7e3 pas2c stuff
unc0rr
parents: 7134
diff changeset
   637
        (BTArray _ _ _, _) -> phrase2C $ 
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   638
            ProcCall (FunCall
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   639
                [
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   640
                Reference $ Address ref
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   641
                , Reference $ Address $ RefExpression expr
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   642
                , Reference $ FunCall [expr] (SimpleReference (Identifier "sizeof" BTUnknown))
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   643
                ]
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   644
                (SimpleReference (Identifier "memcpy" BTUnknown))
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   645
                ) []
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   646
        _ -> do
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   647
            e <- expr2C expr
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7062
diff changeset
   648
            return $ r <+> text "=" <+> e <> semi
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   649
phrase2C (WhileCycle expr phrase) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   650
    e <- expr2C expr
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   651
    p <- phrase2C $ wrapPhrase phrase
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   652
    return $ text "while" <> parens e $$ p
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   653
phrase2C (SwitchCase expr cases mphrase) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   654
    e <- expr2C expr
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   655
    cs <- mapM case2C cases
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   656
    d <- dflt
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   657
    return $ 
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   658
        text "switch" <> parens e $+$ braces (nest 4 . vcat $ cs ++ d)
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   659
    where
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   660
    case2C :: ([InitExpression], Phrase) -> State RenderState Doc
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   661
    case2C (e, p) = do
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   662
        ies <- mapM range2C e
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   663
        ph <- phrase2C p
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   664
        return $ 
6874
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   665
             vcat (map (\i -> text "case" <+> i <> colon) . concat $ ies) <> nest 4 (ph $+$ text "break;")
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   666
    dflt | isNothing mphrase = return []
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   667
         | otherwise = do
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   668
             ph <- mapM phrase2C $ fromJust mphrase
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   669
             return [text "default:" <+> nest 4 (vcat ph)]
b9e2e509a42d Better handle switch statement
unc0rr
parents: 6872
diff changeset
   670
                                         
6845
3cbfc35f6c2e - Handle multidimensional arrays better
unc0rr
parents: 6843
diff changeset
   671
phrase2C wb@(WithBlock ref p) = do
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   672
    r <- ref2C ref 
6845
3cbfc35f6c2e - Handle multidimensional arrays better
unc0rr
parents: 6843
diff changeset
   673
    t <- gets lastType
3cbfc35f6c2e - Handle multidimensional arrays better
unc0rr
parents: 6843
diff changeset
   674
    case t of
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   675
        (BTRecord _ rs) -> withRecordNamespace (render r ++ ".") rs $ phrase2C $ wrapPhrase p
6845
3cbfc35f6c2e - Handle multidimensional arrays better
unc0rr
parents: 6843
diff changeset
   676
        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
   677
            error $ "'with' block referencing non-record type " ++ show a ++ "\n" ++ show wb
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   678
phrase2C (ForCycle i' e1' e2' p) = do
6663
2c4151afad0c Workaround pointers to not yet defined types
unc0rr
parents: 6653
diff changeset
   679
    i <- id2C IOLookup i'
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   680
    e1 <- expr2C e1'
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   681
    e2 <- expr2C e2'
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   682
    ph <- phrase2C (wrapPhrase p)
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   683
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   684
        text "for" <> (parens . hsep . punctuate (char ';') $ [i <+> text "=" <+> e1, i <+> text "<=" <+> e2, text "++" <> i])
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   685
        $$
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   686
        ph
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   687
phrase2C (RepeatCycle e' p') = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   688
    e <- expr2C e'
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   689
    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
   690
    return $ text "do" <+> p <+> text "while" <> parens (text "!" <> parens e) <> semi
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   691
phrase2C NOP = return $ text ";"
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   692
7134
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   693
phrase2C (BuiltInFunctionCall [] (SimpleReference (Identifier "exit" BTUnknown))) = do
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   694
    f <- gets currentFunctionResult
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   695
    if null f then
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   696
        return $ text "return" <> semi
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   697
        else
beb16926ae5c Some improvements to pas2c
unc0rr
parents: 7075
diff changeset
   698
        return $ text "return" <+> text f <> semi
7038
d853e4385241 Some more definitions and slight fixes
unc0rr
parents: 7037
diff changeset
   699
phrase2C (BuiltInFunctionCall [] (SimpleReference (Identifier "break" BTUnknown))) = return $ text "break" <> semi
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   700
phrase2C (BuiltInFunctionCall [] (SimpleReference (Identifier "continue" BTUnknown))) = return $ text "continue" <> semi
7037
7edce323558f uAmmos.c now compiles (3 warnings though)
unc0rr
parents: 7036
diff changeset
   701
phrase2C (BuiltInFunctionCall [e] (SimpleReference (Identifier "exit" BTUnknown))) = liftM (\e -> text "return" <+> e <> semi) $ expr2C e
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   702
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
   703
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
   704
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
   705
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
   706
phrase2C a = error $ "phrase2C: " ++ show a
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   707
6307
25cfd9f4a567 Even more improvements to the parser and converter
unc0rr
parents: 6277
diff changeset
   708
wrapPhrase p@(Phrases _) = p
25cfd9f4a567 Even more improvements to the parser and converter
unc0rr
parents: 6277
diff changeset
   709
wrapPhrase p = Phrases [p]
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   710
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   711
expr2C :: Expression -> State RenderState Doc
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   712
expr2C (Expression s) = return $ text s
7060
861d6897917f Properly track type in ref2CF, this fixes issues with functions returning strings used in expression (like "a" + line())
unc0rr
parents: 7057
diff changeset
   713
expr2C b@(BinOp op expr1 expr2) = do
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   714
    e1 <- expr2C expr1
6860
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   715
    t1 <- gets lastType
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   716
    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
   717
    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
   718
    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
   719
        ("+", 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
   720
        ("+", 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
   721
        ("+", BTChar, BTString) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strprepend" (BTFunction 2 BTString))
7151
ec15d9e1a7e3 pas2c stuff
unc0rr
parents: 7134
diff changeset
   722
        ("+", BTChar, BTChar) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_chrconcat" (BTFunction 2 BTString))
7054
7e8fb07ef91c Function to compare string to char ftw
unc0rr
parents: 7052
diff changeset
   723
        ("==", BTString, BTChar) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strcomparec" (BTFunction 2 BTBool))
7e8fb07ef91c Function to compare string to char ftw
unc0rr
parents: 7052
diff changeset
   724
        ("==", BTString, BTString) -> expr2C $ BuiltInFunCall [expr1, expr2] (SimpleReference $ Identifier "_strcompare" (BTFunction 2 BTBool))
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
   725
        ("!=", 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
   726
        ("&", 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
   727
        ("|", BTBool, _) -> return $ parens e1 <+> text "||" <+> parens e2
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   728
        (_, BTRecord t1 _, BTRecord t2 _) -> do
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   729
            i <- op2CTyped op [SimpleType (Identifier t1 undefined), SimpleType (Identifier t2 undefined)]
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   730
            ref2C $ FunCall [expr1, expr2] (SimpleReference i)
7056
2884c7be6691 Recognize (hwFloat op int) expressions
unc0rr
parents: 7055
diff changeset
   731
        (_, BTRecord t1 _, BTInt) -> do
2884c7be6691 Recognize (hwFloat op int) expressions
unc0rr
parents: 7055
diff changeset
   732
            -- aw, "LongInt" here is hwengine-specific hack
2884c7be6691 Recognize (hwFloat op int) expressions
unc0rr
parents: 7055
diff changeset
   733
            i <- op2CTyped op [SimpleType (Identifier t1 undefined), SimpleType (Identifier "LongInt" undefined)]
2884c7be6691 Recognize (hwFloat op int) expressions
unc0rr
parents: 7055
diff changeset
   734
            ref2C $ FunCall [expr1, expr2] (SimpleReference i)
7057
c3eba84d1a98 Support operator 'in', replace it with equality checks against each element of set
unc0rr
parents: 7056
diff changeset
   735
        ("in", _, _) -> 
c3eba84d1a98 Support operator 'in', replace it with equality checks against each element of set
unc0rr
parents: 7056
diff changeset
   736
            case expr2 of
c3eba84d1a98 Support operator 'in', replace it with equality checks against each element of set
unc0rr
parents: 7056
diff changeset
   737
                 SetExpression set -> do
c3eba84d1a98 Support operator 'in', replace it with equality checks against each element of set
unc0rr
parents: 7056
diff changeset
   738
                     ids <- mapM (id2C IOLookup) set
c3eba84d1a98 Support operator 'in', replace it with equality checks against each element of set
unc0rr
parents: 7056
diff changeset
   739
                     return . parens . hcat . punctuate (text " || ") . map (\i -> parens $ e1 <+> text "==" <+> i) $ ids
c3eba84d1a98 Support operator 'in', replace it with equality checks against each element of set
unc0rr
parents: 7056
diff changeset
   740
                 _ -> error "'in' against not set expression"
6923
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   741
        (o, _, _) | o `elem` boolOps -> do
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   742
                        modify(\s -> s{lastType = BTBool})
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   743
                        return $ parens e1 <+> text o <+> parens e2
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   744
                  | otherwise -> return $ parens e1 <+> text o <+> parens e2
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   745
    where
d2405a6a86f5 uCommands compiles
unc0rr
parents: 6921
diff changeset
   746
        boolOps = ["==", "!=", "<", ">", "<=", ">="]
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   747
expr2C (NumberLiteral s) = do
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   748
    modify(\s -> s{lastType = BTInt})
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   749
    return $ text s
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   750
expr2C (FloatLiteral s) = return $ text s
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   751
expr2C (HexNumber s) = return $ text "0x" <> (text . map toLower $ s)
7067
f98ec3aecf4e A solution to char vs string problem: mark single-letter strings with _S macro
unc0rr
parents: 7066
diff changeset
   752
{-expr2C (StringLiteral [a]) = 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
   753
    modify(\s -> s{lastType = BTChar})
7043
7c080e5ac8d0 Some work to make more units compile after conversion to c
unc0rr
parents: 7042
diff changeset
   754
    return . quotes . text $ escape a
7c080e5ac8d0 Some work to make more units compile after conversion to c
unc0rr
parents: 7042
diff changeset
   755
    where
7c080e5ac8d0 Some work to make more units compile after conversion to c
unc0rr
parents: 7042
diff changeset
   756
        escape '\'' = "\\\'"
7067
f98ec3aecf4e A solution to char vs string problem: mark single-letter strings with _S macro
unc0rr
parents: 7066
diff changeset
   757
        escape a = [a]-}
6896
23b38e530967 Move all strings into constants to make them of string255 type
unc0rr
parents: 6895
diff changeset
   758
expr2C (StringLiteral s) = addStringConst s
7072
159616c24bb8 More magic
unc0rr
parents: 7069
diff changeset
   759
expr2C (PCharLiteral s) = return . doubleQuotes $ text 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
   760
expr2C (Reference ref) = ref2CF ref
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   761
expr2C (PrefixOp op expr) = do
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   762
    e <- expr2C expr
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   763
    lt <- gets lastType
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   764
    case lt of
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   765
        BTRecord t _ -> do
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   766
            i <- op2CTyped op [SimpleType (Identifier t undefined)]
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   767
            ref2C $ FunCall [expr] (SimpleReference i)
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   768
        _ -> return $ text (op2C op) <> e
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   769
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
   770
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
   771
    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
   772
    return $ quotes $ text "\\x" <> text (showHex (read a) "")
7075
6bd7e5ad3f2b '\xd7af' -> 0xd7af
unc0rr
parents: 7072
diff changeset
   773
expr2C (HexCharCode a) = if length a <= 2 then return $ quotes $ text "\\x" <> text (map toLower a) else expr2C $ HexNumber a
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   774
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
   775
7036
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   776
expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "low" _))) = do
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   777
    e' <- liftM (map toLower . render) $ expr2C e
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   778
    lt <- gets lastType
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   779
    case lt of
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   780
         BTEnum a -> return $ int 0
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   781
         BTInt -> case e' of
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   782
                  "longint" -> return $ int (-2147483648)
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   783
         BTArray {} -> return $ int 0
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   784
         _ -> error $ "BuiltInFunCall 'low' from " ++ show e ++ "\ntype: " ++ show lt
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   785
expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "high" _))) = do
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   786
    e' <- liftM (map toLower . render) $ expr2C e
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   787
    lt <- gets lastType
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   788
    case lt of
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   789
         BTEnum a -> return . int $ length a - 1
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   790
         BTInt -> case e' of
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   791
                  "longint" -> return $ int (2147483647)
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   792
         BTString -> return $ int 255
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   793
         BTArray (RangeFromTo _ n) _ _ -> initExpr2C n
d99934a827f0 Implement built-in functions Low() and High()
unc0rr
parents: 7034
diff changeset
   794
         _ -> error $ "BuiltInFunCall 'high' from " ++ show e ++ "\ntype: " ++ show lt
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
   795
expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "ord" _))) = liftM parens $ expr2C e
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   796
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
   797
expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "pred" _))) = liftM (<> text " - 1") $ expr2C e
7062
7efe16575779 Recognize length on arrays as a separate function
unc0rr
parents: 7060
diff changeset
   798
expr2C (BuiltInFunCall [e] (SimpleReference (Identifier "length" _))) = do
7efe16575779 Recognize length on arrays as a separate function
unc0rr
parents: 7060
diff changeset
   799
    e' <- expr2C e
7efe16575779 Recognize length on arrays as a separate function
unc0rr
parents: 7060
diff changeset
   800
    lt <- gets lastType
7069
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   801
    modify (\s -> s{lastType = BTInt})
7062
7efe16575779 Recognize length on arrays as a separate function
unc0rr
parents: 7060
diff changeset
   802
    case lt of
7069
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   803
         BTString -> return $ text "Length" <> parens e'
7062
7efe16575779 Recognize length on arrays as a separate function
unc0rr
parents: 7060
diff changeset
   804
         BTArray {} -> return $ text "length_ar" <> parens e'
7efe16575779 Recognize length on arrays as a separate function
unc0rr
parents: 7060
diff changeset
   805
         _ -> error $ "length() called on " ++ show lt
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   806
expr2C (BuiltInFunCall params ref) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   807
    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
   808
    t <- gets lastType
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   809
    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
   810
    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
   811
        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
   812
            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
   813
        _ -> error $ "BuiltInFunCall lastType: " ++ show t
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   814
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   815
        r <> parens (hsep . punctuate (char ',') $ ps)
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   816
expr2C a = error $ "Don't know how to render " ++ show a
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   817
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
   818
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
   819
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
   820
    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
   821
    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
   822
    case t of
7060
861d6897917f Properly track type in ref2CF, this fixes issues with functions returning strings used in expression (like "a" + line())
unc0rr
parents: 7057
diff changeset
   823
         BTFunction _ rt -> do
861d6897917f Properly track type in ref2CF, this fixes issues with functions returning strings used in expression (like "a" + line())
unc0rr
parents: 7057
diff changeset
   824
             modify(\s -> s{lastType = rt})
861d6897917f Properly track type in ref2CF, this fixes issues with functions returning strings used in expression (like "a" + line())
unc0rr
parents: 7057
diff changeset
   825
             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
   826
         _ -> return $ i
7055
4c495c8f02da Convert "unit.function()" properly
unc0rr
parents: 7054
diff changeset
   827
ref2CF r@(RecordField (SimpleReference _) (SimpleReference _)) = do
4c495c8f02da Convert "unit.function()" properly
unc0rr
parents: 7054
diff changeset
   828
    i <- ref2C r
4c495c8f02da Convert "unit.function()" properly
unc0rr
parents: 7054
diff changeset
   829
    t <- gets lastType
4c495c8f02da Convert "unit.function()" properly
unc0rr
parents: 7054
diff changeset
   830
    case t of
7060
861d6897917f Properly track type in ref2CF, this fixes issues with functions returning strings used in expression (like "a" + line())
unc0rr
parents: 7057
diff changeset
   831
         BTFunction _ rt -> do
861d6897917f Properly track type in ref2CF, this fixes issues with functions returning strings used in expression (like "a" + line())
unc0rr
parents: 7057
diff changeset
   832
             modify(\s -> s{lastType = rt})
861d6897917f Properly track type in ref2CF, this fixes issues with functions returning strings used in expression (like "a" + line())
unc0rr
parents: 7057
diff changeset
   833
             return $ i <> parens empty
7055
4c495c8f02da Convert "unit.function()" properly
unc0rr
parents: 7054
diff changeset
   834
         _ -> return $ i
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
   835
ref2CF r = ref2C r
6307
25cfd9f4a567 Even more improvements to the parser and converter
unc0rr
parents: 6277
diff changeset
   836
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6511
diff changeset
   837
ref2C :: Reference -> State RenderState Doc
6854
873929cbd54b Normalize RecordFields before conversion. Helps with namespaces problem.
unc0rr
parents: 6853
diff changeset
   838
-- rewrite into proper form
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   839
ref2C (RecordField ref1 (ArrayElement exprs ref2)) = ref2C $ ArrayElement exprs (RecordField ref1 ref2)
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   840
ref2C (RecordField ref1 (Dereference ref2)) = ref2C $ Dereference (RecordField ref1 ref2)
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   841
ref2C (RecordField ref1 (RecordField ref2 ref3)) = ref2C $ RecordField (RecordField ref1 ref2) ref3
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   842
ref2C (RecordField ref1 (FunCall params ref2)) = ref2C $ FunCall params (RecordField ref1 ref2)
608c8b057c3b Improve rendering into C
unc0rr
parents: 6855
diff changeset
   843
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
   844
-- conversion routines
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   845
ref2C ae@(ArrayElement [expr] ref) = do
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   846
    e <- expr2C expr
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   847
    r <- ref2C ref 
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   848
    t <- gets lastType
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   849
    case t of
6893
69cc0166be8d - Track array size to use for High function
unc0rr
parents: 6891
diff changeset
   850
         (BTArray _ _ t') -> modify (\st -> st{lastType = t'})
7032
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   851
--         (BTFunctionReturn _ (BTArray _ _ t')) -> modify (\st -> st{lastType = t'})
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   852
--         (BTFunctionReturn _ (BTString)) -> modify (\st -> st{lastType = BTChar})
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6835
diff changeset
   853
         (BTString) -> modify (\st -> st{lastType = BTChar})
6872
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   854
         (BTPointerTo t) -> do
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   855
                t'' <- fromPointer (show t) =<< gets lastType
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   856
                case t'' of
0f6eef4a07c8 Better support for strings
unc0rr
parents: 6860
diff changeset
   857
                     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
   858
                     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
   859
         a -> error $ "Getting element of " ++ show a ++ "\nReference: " ++ show ae
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   860
    case t of
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   861
         BTString ->  return $ r <> text ".s" <> brackets e
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6894
diff changeset
   862
         _ -> return $ r <> brackets e
6663
2c4151afad0c Workaround pointers to not yet defined types
unc0rr
parents: 6653
diff changeset
   863
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
   864
ref2C rf@(RecordField (Dereference ref1) ref2) = do
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   865
    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
   866
    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
   867
    r2 <- case t of
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   868
        BTRecord _ rs -> withRecordNamespace "" rs $ ref2C ref2
7055
4c495c8f02da Convert "unit.function()" properly
unc0rr
parents: 7054
diff changeset
   869
        BTUnit -> error "What??"
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
   870
        a -> error $ "dereferencing from " ++ show a ++ "\n" ++ show rf
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   871
    return $ 
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   872
        r1 <> text "->" <> r2
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   873
ref2C rf@(RecordField ref1 ref2) = do
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   874
    r1 <- ref2C ref1
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6552
diff changeset
   875
    t <- gets lastType
7033
583049a98113 Prepend unit name to function identifiers
unc0rr
parents: 7032
diff changeset
   876
    case t of
7042
de20086a6bcc Support overloaded operators on (hwFloat op hwFloat) calls
unc0rr
parents: 7040
diff changeset
   877
        BTRecord _ rs -> do
7033
583049a98113 Prepend unit name to function identifiers
unc0rr
parents: 7032
diff changeset
   878
            r2 <- withRecordNamespace "" rs $ ref2C ref2
583049a98113 Prepend unit name to function identifiers
unc0rr
parents: 7032
diff changeset
   879
            return $ r1 <> text "." <> r2
7055
4c495c8f02da Convert "unit.function()" properly
unc0rr
parents: 7054
diff changeset
   880
        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
   881
        a -> error $ "dereferencing from " ++ show a ++ "\n" ++ show rf
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
   882
ref2C d@(Dereference ref) = do
6827
a0e152e68337 Dig into namespaces even more
unc0rr
parents: 6826
diff changeset
   883
    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
   884
    t <- fromPointer (show d) =<< gets lastType
6834
2af81d3b176d Resolve deferred type on dereference
unc0rr
parents: 6827
diff changeset
   885
    modify (\st -> st{lastType = t})
6859
cd0697c7e88b Unwind 'with' construction
unc0rr
parents: 6858
diff changeset
   886
    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
   887
ref2C f@(FunCall params ref) = do
7032
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   888
    r <- fref2C ref
6826
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   889
    t <- gets lastType
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   890
    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
   891
        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
   892
            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
   893
            modify (\s -> s{lastType = t'})
6826
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   894
            return $ 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
   895
        _ -> 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
   896
                  (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
   897
                  _ -> error $ "ref2C FunCall erroneous type cast detected: " ++ show f ++ "\nType detected: " ++ show t
7032
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   898
    where
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   899
    fref2C (SimpleReference name) = id2C (IOLookupFunction $ length params) name
5685ca1ec9bf Mangle overloaded functions (only different number of parameters is supported)
unc0rr
parents: 7019
diff changeset
   900
    fref2C a = ref2C a
6826
8fadeefdd352 Just some further work
unc0rr
parents: 6817
diff changeset
   901
        
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   902
ref2C (Address ref) = do
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   903
    r <- ref2C ref
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   904
    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
   905
ref2C (TypeCast t'@(Identifier i _) expr) = do
7151
ec15d9e1a7e3 pas2c stuff
unc0rr
parents: 7134
diff changeset
   906
    lt <- expr2C expr >> gets lastType
ec15d9e1a7e3 pas2c stuff
unc0rr
parents: 7134
diff changeset
   907
    case (map toLower i, lt) of
ec15d9e1a7e3 pas2c stuff
unc0rr
parents: 7134
diff changeset
   908
        ("pchar", BTString) -> ref2C $ FunCall [expr] (SimpleReference (Identifier "_pchar" $ BTPointerTo BTChar))
ec15d9e1a7e3 pas2c stuff
unc0rr
parents: 7134
diff changeset
   909
        ("shortstring", BTPointerTo _) -> ref2C $ FunCall [expr] (SimpleReference (Identifier "pchar2str" $ BTString))
ec15d9e1a7e3 pas2c stuff
unc0rr
parents: 7134
diff changeset
   910
        (a, _) -> 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
   911
            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
   912
            t <- id2C IOLookup t'    
7038
d853e4385241 Some more definitions and slight fixes
unc0rr
parents: 7037
diff changeset
   913
            return . parens $ parens t <> e
6467
090269e528df - Improve parsing of prefix operators
unc0rr
parents: 6455
diff changeset
   914
ref2C (RefExpression expr) = expr2C expr
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   915
6509
648caa66991b Convert into Reader monad
unc0rr
parents: 6499
diff changeset
   916
6860
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   917
op2C :: String -> String
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   918
op2C "or" = "|"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   919
op2C "and" = "&"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   920
op2C "not" = "!"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   921
op2C "xor" = "^"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   922
op2C "div" = "/"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   923
op2C "mod" = "%"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   924
op2C "shl" = "<<"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   925
op2C "shr" = ">>"
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   926
op2C "<>" = "!="
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   927
op2C "=" = "=="
f4238c683ec7 Convert some operators
unc0rr
parents: 6859
diff changeset
   928
op2C a = a
6273
13262c6e5027 Starting pas2C using library called 'pretty'
unc0rr
parents:
diff changeset
   929