forked from GitHub/gf-core
-val optimization
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@@ -167,6 +167,7 @@ data Exp =
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| EQCons Ident Ident
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| EApp Exp Exp
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| ETable [Case]
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| EVTable Exp [Exp]
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| ETTable Exp [Case]
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| ECase Exp [Case]
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| EVariants [Exp]
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@@ -160,6 +160,7 @@ EQCons. Exp3 ::= "[" Ident "." Ident "]" ; -- qualified constant
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EApp. Exp2 ::= Exp2 Exp3 ;
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ETable. Exp2 ::= "table" "{" [Case] "}" ;
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ETTable. Exp2 ::= "table" Exp4 "{" [Case] "}" ;
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EVTable. Exp2 ::= "table" Exp4 "[" [Exp] "]" ;
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ECase. Exp2 ::= "case" Exp "of" "{" [Case] "}" ;
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EVariants. Exp2 ::= "variants" "{" [Exp] "}" ;
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EPre. Exp2 ::= "pre" "{" Exp ";" [Altern] "}" ;
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@@ -129,6 +129,7 @@ trt trm = case trm of
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T (TComp ty) cc -> P.ETTable (trt ty) (map trCase cc)
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T (TWild ty) cc -> P.ETTable (trt ty) (map trCase cc)
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T _ cc -> P.ETable (map trCase cc)
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V ty cc -> P.EVTable (trt ty) (map trt cc)
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Table x v -> P.ETType (trt x) (trt v)
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S f x -> P.ESelect (trt f) (trt x)
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File diff suppressed because one or more lines are too long
@@ -4,7 +4,6 @@
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module LexGF where
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import ErrM
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import SharedString
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}
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@@ -23,30 +22,27 @@ $u = [\0-\255] -- universal: any character
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"{-" ([$u # \-] | \- [$u # \}])* ("-")+ "}" ;
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$white+ ;
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@rsyms { tok (\p s -> PT p (TS $ share s)) }
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\' ($u # \')* \' { tok (\p s -> PT p (eitherResIdent (T_LString . share) s)) }
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@rsyms { tok (\p s -> PT p (TS s)) }
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\' ($u # \')* \' { tok (\p s -> PT p (eitherResIdent T_LString s)) }
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$l $i* { tok (\p s -> PT p (eitherResIdent (TV . share) s)) }
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\" ([$u # [\" \\ \n]] | (\\ (\" | \\ | \' | n | t)))* \"{ tok (\p s -> PT p (TL $ share $ unescapeInitTail s)) }
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$l $i* { tok (\p s -> PT p (eitherResIdent TV s)) }
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\" ([$u # [\" \\ \n]] | (\\ (\" | \\ | \' | n | t)))* \"{ tok (\p s -> PT p (TL $ unescapeInitTail s)) }
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$d+ { tok (\p s -> PT p (TI $ share s)) }
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$d+ { tok (\p s -> PT p (TI s)) }
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{
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tok f p s = f p s
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share :: String -> String
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share = shareString
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data Tok =
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TS !String -- reserved words
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| TL !String -- string literals
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| TI !String -- integer literals
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| TV !String -- identifiers
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| TD !String -- double precision float literals
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| TC !String -- character literals
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| T_LString !String
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TS String -- reserved words
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| TL String -- string literals
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| TI String -- integer literals
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| TV String -- identifiers
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| TD String -- double precision float literals
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| TC String -- character literals
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| T_LString String
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deriving (Eq,Show,Ord)
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@@ -72,18 +68,20 @@ prToken t = case t of
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_ -> show t
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data BTree = N | B String Tok BTree BTree deriving (Show)
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eitherResIdent :: (String -> Tok) -> String -> Tok
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eitherResIdent tv s = treeFind resWords
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where
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treeFind N = tv s
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treeFind (B a t left right) | s < a = treeFind left
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| s > a = treeFind right
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| s == a = t
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eitherResIdent tv s = if isResWord s then (TS s) else (tv s) where
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isResWord s = isInTree s $
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B "lincat" (B "def" (B "Type" (B "Str" (B "PType" (B "Lin" N N) N) (B "Tok" (B "Strs" N N) N)) (B "cat" (B "case" (B "abstract" N N) N) (B "data" (B "concrete" N N) N))) (B "include" (B "fun" (B "fn" (B "flags" N N) N) (B "in" (B "grammar" N N) N)) (B "interface" (B "instance" (B "incomplete" N N) N) (B "lin" (B "let" N N) N)))) (B "resource" (B "out" (B "of" (B "lintype" (B "lindef" N N) N) (B "oper" (B "open" N N) N)) (B "pattern" (B "param" (B "package" N N) N) (B "printname" (B "pre" N N) N))) (B "union" (B "table" (B "strs" (B "reuse" N N) N) (B "transfer" (B "tokenizer" N N) N)) (B "where" (B "variants" (B "var" N N) N) (B "with" N N))))
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resWords = b "lincat" (b "def" (b "Type" (b "Str" (b "PType" (b "Lin" N N) N) (b "Tok" (b "Strs" N N) N)) (b "cat" (b "case" (b "abstract" N N) N) (b "data" (b "concrete" N N) N))) (b "include" (b "fun" (b "fn" (b "flags" N N) N) (b "in" (b "grammar" N N) N)) (b "interface" (b "instance" (b "incomplete" N N) N) (b "lin" (b "let" N N) N)))) (b "resource" (b "out" (b "of" (b "lintype" (b "lindef" N N) N) (b "oper" (b "open" N N) N)) (b "pattern" (b "param" (b "package" N N) N) (b "printname" (b "pre" N N) N))) (b "union" (b "table" (b "strs" (b "reuse" N N) N) (b "transfer" (b "tokenizer" N N) N)) (b "where" (b "variants" (b "var" N N) N) (b "with" N N))))
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where b s = B s (TS s)
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data BTree = N | B String BTree BTree deriving (Show)
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isInTree :: String -> BTree -> Bool
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isInTree x tree = case tree of
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N -> False
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B a left right
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| x < a -> isInTree x left
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| x > a -> isInTree x right
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| x == a -> True
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unescapeInitTail :: String -> String
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unescapeInitTail = unesc . tail where
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File diff suppressed because one or more lines are too long
@@ -334,6 +334,7 @@ instance Print Exp where
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EApp exp0 exp -> prPrec i 2 (concatD [prt 2 exp0 , prt 3 exp])
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ETable cases -> prPrec i 2 (concatD [doc (showString "table") , doc (showString "{") , prt 0 cases , doc (showString "}")])
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ETTable exp cases -> prPrec i 2 (concatD [doc (showString "table") , prt 4 exp , doc (showString "{") , prt 0 cases , doc (showString "}")])
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EVTable exp exps -> prPrec i 2 (concatD [doc (showString "table") , prt 4 exp , doc (showString "[") , prt 0 exps , doc (showString "]")])
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ECase exp cases -> prPrec i 2 (concatD [doc (showString "case") , prt 0 exp , doc (showString "of") , doc (showString "{") , prt 0 cases , doc (showString "}")])
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EVariants exps -> prPrec i 2 (concatD [doc (showString "variants") , doc (showString "{") , prt 0 exps , doc (showString "}")])
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EPre exp alterns -> prPrec i 2 (concatD [doc (showString "pre") , doc (showString "{") , prt 0 exp , doc (showString ";") , prt 0 alterns , doc (showString "}")])
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@@ -206,6 +206,7 @@ transExp x = case x of
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EApp exp0 exp -> failure x
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ETable cases -> failure x
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ETTable exp cases -> failure x
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EVTable exp exps -> failure x
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ECase exp cases -> failure x
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EVariants exps -> failure x
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EPre exp alterns -> failure x
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@@ -350,6 +350,8 @@ transExp x = case x of
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ETable cases -> liftM (G.T G.TRaw) (transCases cases)
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ETTable exp cases ->
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liftM2 (\t c -> G.T (G.TTyped t) c) (transExp exp) (transCases cases)
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EVTable exp cases ->
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liftM2 (\t c -> G.V t c) (transExp exp) (mapM transExp cases)
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ECase exp cases -> do
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exp' <- transExp exp
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cases' <- transCases cases
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@@ -18,22 +18,28 @@ type ParseFun a = [Token] -> Err a
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myLLexer = myLexer
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runFile :: (Print a, Show a) => ParseFun a -> FilePath -> IO ()
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runFile p f = readFile f >>= run p
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type Verbosity = Int
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run :: (Print a, Show a) => ParseFun a -> String -> IO ()
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run p s = case (p (myLLexer s)) of
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Bad s -> do putStrLn "\nParse Failed...\n"
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putStrV :: Verbosity -> String -> IO ()
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putStrV v s = if v > 1 then putStrLn s else return ()
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runFile :: (Print a, Show a) => Verbosity -> ParseFun a -> FilePath -> IO ()
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runFile v p f = putStrLn f >> readFile f >>= run v p
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run :: (Print a, Show a) => Verbosity -> ParseFun a -> String -> IO ()
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run v p s = let ts = myLLexer s in case p ts of
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Bad s -> do putStrLn "\nParse Failed...\n"
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putStrV v "Tokens:"
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putStrV v $ show ts
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putStrLn s
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Ok tree -> do putStrLn "\nParse Successful!"
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putStrLn $ "\n[Abstract Syntax]\n\n" ++ show tree
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putStrLn $ "\n[Linearized tree]\n\n" ++ printTree tree
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putStrV v $ "\n[Abstract Syntax]\n\n" ++ show tree
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putStrV v $ "\n[Linearized tree]\n\n" ++ printTree tree
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main :: IO ()
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main = do args <- getArgs
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case args of
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[] -> hGetContents stdin >>= run pGrammar
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[f] -> runFile pGrammar f
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_ -> do progName <- getProgName
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putStrLn $ progName ++ ": excess arguments."
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[] -> hGetContents stdin >>= run 2 pGrammar
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"-s":fs -> mapM_ (runFile 0 pGrammar) fs
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fs -> mapM_ (runFile 2 pGrammar) fs
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