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authorkrasimir <krasimir@chalmers.se>2009-12-13 18:50:29 +0000
committerkrasimir <krasimir@chalmers.se>2009-12-13 18:50:29 +0000
commitf85232947e74ee7ef8c7b0ad2338212e7e68f1be (patch)
tree667b886a5e3a4b026a63d4e3597f32497d824761 /src/compiler/GF/Compile/Refresh.hs
parentd88a865faff59c98fc91556ff8700b10ee5f2df8 (diff)
reorganize the directories under src, and rescue the JavaScript interpreter from deprecated
Diffstat (limited to 'src/compiler/GF/Compile/Refresh.hs')
-rw-r--r--src/compiler/GF/Compile/Refresh.hs133
1 files changed, 133 insertions, 0 deletions
diff --git a/src/compiler/GF/Compile/Refresh.hs b/src/compiler/GF/Compile/Refresh.hs
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+----------------------------------------------------------------------
+-- |
+-- Module : Refresh
+-- Maintainer : AR
+-- Stability : (stable)
+-- Portability : (portable)
+--
+-- > CVS $Date: 2005/04/21 16:22:27 $
+-- > CVS $Author: bringert $
+-- > CVS $Revision: 1.6 $
+--
+-- (Description of the module)
+-----------------------------------------------------------------------------
+
+module GF.Compile.Refresh (refreshTerm, refreshTermN,
+ refreshModule
+ ) where
+
+import GF.Data.Operations
+import GF.Grammar.Grammar
+import GF.Infra.Ident
+import GF.Infra.Modules
+import GF.Grammar.Macros
+import Control.Monad
+
+refreshTerm :: Term -> Err Term
+refreshTerm = refreshTermN 0
+
+refreshTermN :: Int -> Term -> Err Term
+refreshTermN i e = liftM snd $ refreshTermKN i e
+
+refreshTermKN :: Int -> Term -> Err (Int,Term)
+refreshTermKN i e = liftM (\ (t,(_,i)) -> (i,t)) $
+ appSTM (refresh e) (initIdStateN i)
+
+refresh :: Term -> STM IdState Term
+refresh e = case e of
+
+ Vr x -> liftM Vr (lookVar x)
+ Abs b x t -> liftM2 (Abs b) (refVarPlus x) (refresh t)
+
+ Prod b x a t -> do
+ a' <- refresh a
+ x' <- refVar x
+ t' <- refresh t
+ return $ Prod b x' a' t'
+
+ Let (x,(mt,a)) b -> do
+ a' <- refresh a
+ mt' <- case mt of
+ Just t -> refresh t >>= (return . Just)
+ _ -> return mt
+ x' <- refVar x
+ b' <- refresh b
+ return (Let (x',(mt',a')) b')
+
+ R r -> liftM R $ refreshRecord r
+
+ ExtR r s -> liftM2 ExtR (refresh r) (refresh s)
+
+ T i cc -> liftM2 T (refreshTInfo i) (mapM refreshCase cc)
+
+ _ -> composOp refresh e
+
+refreshCase :: (Patt,Term) -> STM IdState (Patt,Term)
+refreshCase (p,t) = liftM2 (,) (refreshPatt p) (refresh t)
+
+refreshPatt p = case p of
+ PV x -> liftM PV (refVar x)
+ PC c ps -> liftM (PC c) (mapM refreshPatt ps)
+ PP q c ps -> liftM (PP q c) (mapM refreshPatt ps)
+ PR r -> liftM PR (mapPairsM refreshPatt r)
+ PT t p' -> liftM2 PT (refresh t) (refreshPatt p')
+
+ PAs x p' -> liftM2 PAs (refVar x) (refreshPatt p')
+
+ PSeq p' q' -> liftM2 PSeq (refreshPatt p') (refreshPatt q')
+ PAlt p' q' -> liftM2 PAlt (refreshPatt p') (refreshPatt q')
+ PRep p' -> liftM PRep (refreshPatt p')
+ PNeg p' -> liftM PNeg (refreshPatt p')
+
+ _ -> return p
+
+refreshRecord r = case r of
+ [] -> return r
+ (x,(mt,a)):b -> do
+ a' <- refresh a
+ mt' <- case mt of
+ Just t -> refresh t >>= (return . Just)
+ _ -> return mt
+ b' <- refreshRecord b
+ return $ (x,(mt',a')) : b'
+
+refreshTInfo i = case i of
+ TTyped t -> liftM TTyped $ refresh t
+ TComp t -> liftM TComp $ refresh t
+ TWild t -> liftM TWild $ refresh t
+ _ -> return i
+
+-- for abstract syntax
+
+refreshEquation :: Equation -> Err ([Patt],Term)
+refreshEquation pst = err Bad (return . fst) (appSTM (refr pst) initIdState) where
+ refr (ps,t) = liftM2 (,) (mapM refreshPatt ps) (refresh t)
+
+-- for concrete and resource in grammar, before optimizing
+
+refreshGrammar :: SourceGrammar -> Err SourceGrammar
+refreshGrammar = liftM (MGrammar . snd) . foldM refreshModule (0,[]) . modules
+
+refreshModule :: (Int,[SourceModule]) -> SourceModule -> Err (Int,[SourceModule])
+refreshModule (k,ms) mi@(i,mo)
+ | isModCnc mo || isModRes mo = do
+ (k',js') <- foldM refreshRes (k,[]) $ tree2list $ jments mo
+ return (k', (i, replaceJudgements mo (buildTree js')) : ms)
+ | otherwise = return (k, mi:ms)
+ where
+ refreshRes (k,cs) ci@(c,info) = case info of
+ ResOper ptyp (Just trm) -> do ---- refresh ptyp
+ (k',trm') <- refreshTermKN k trm
+ return $ (k', (c, ResOper ptyp (Just trm')):cs)
+ ResOverload os tyts -> do
+ (k',tyts') <- liftM (\ (t,(_,i)) -> (i,t)) $
+ appSTM (mapPairsM refresh tyts) (initIdStateN k)
+ return $ (k', (c, ResOverload os tyts'):cs)
+ CncCat mt (Just trm) pn -> do ---- refresh mt, pn
+ (k',trm') <- refreshTermKN k trm
+ return $ (k', (c, CncCat mt (Just trm') pn):cs)
+ CncFun mt (Just trm) pn -> do ---- refresh pn
+ (k',trm') <- refreshTermKN k trm
+ return $ (k', (c, CncFun mt (Just trm') pn):cs)
+ _ -> return (k, ci:cs)
+