diff options
Diffstat (limited to 'src/GF/Infra/CheckM.hs')
| -rw-r--r-- | src/GF/Infra/CheckM.hs | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/src/GF/Infra/CheckM.hs b/src/GF/Infra/CheckM.hs deleted file mode 100644 index 251ed2b8b..000000000 --- a/src/GF/Infra/CheckM.hs +++ /dev/null @@ -1,89 +0,0 @@ ----------------------------------------------------------------------- --- | --- Module : CheckM --- Maintainer : (Maintainer) --- Stability : (stable) --- Portability : (portable) --- --- > CVS $Date: 2005/04/21 16:22:33 $ --- > CVS $Author: bringert $ --- > CVS $Revision: 1.5 $ --- --- (Description of the module) ------------------------------------------------------------------------------ - -module GF.Infra.CheckM (Check, - checkError, checkCond, checkWarn, checkUpdate, checkInContext, - checkUpdates, checkReset, checkResets, checkGetContext, - checkLookup, checkStart, checkErr, checkVal, checkIn, - prtFail - ) where - -import GF.Data.Operations -import GF.Grammar.Grammar -import GF.Infra.Ident -import GF.Grammar.PrGrammar - --- | the strings are non-fatal warnings -type Check a = STM (Context,[String]) a - -checkError :: String -> Check a -checkError = raise - -checkCond :: String -> Bool -> Check () -checkCond s b = if b then return () else checkError s - --- | warnings should be reversed in the end -checkWarn :: String -> Check () -checkWarn s = updateSTM (\ (cont,msg) -> (cont, s:msg)) - -checkUpdate :: Decl -> Check () -checkUpdate d = updateSTM (\ (cont,msg) -> (d:cont, msg)) - -checkInContext :: [Decl] -> Check r -> Check r -checkInContext g ch = do - i <- checkUpdates g - r <- ch - checkResets i - return r - -checkUpdates :: [Decl] -> Check Int -checkUpdates ds = mapM checkUpdate ds >> return (length ds) - -checkReset :: Check () -checkReset = checkResets 1 - -checkResets :: Int -> Check () -checkResets i = updateSTM (\ (cont,msg) -> (drop i cont, msg)) - -checkGetContext :: Check Context -checkGetContext = do - (co,_) <- readSTM - return co - -checkLookup :: Ident -> Check Type -checkLookup x = do - co <- checkGetContext - checkErr $ maybe (prtBad "unknown variable" x) return $ lookup x co - -checkStart :: Check a -> Err (a,(Context,[String])) -checkStart c = appSTM c ([],[]) - -checkErr :: Err a -> Check a -checkErr e = stm (\s -> do - v <- e - return (v,s) - ) - -checkVal :: a -> Check a -checkVal v = return v - -prtFail :: Print a => String -> a -> Check b -prtFail s t = checkErr $ prtBad s t - -checkIn :: String -> Check a -> Check a -checkIn msg c = stm $ \s@(g,ws) -> case appSTM c s of - Bad e -> Bad $ msg ++++ e - Ok (v,(g',ws')) -> Ok (v,(g',ws2)) where - new = take (length ws' - length ws) ws' - ws2 = [msg ++++ w | w <- new] ++ ws |
