import System ( getArgs )
import Maybe ( catMaybes )
+main :: IO ()
main = getArgs >>= \args ->
if length args /= 1 || head args `notElem` known_args
then error ("usage: genprimopcode command < primops.txt > ...\n"
-> putStr (gen_latex_doc p_o_specs)
)
-
+known_args :: [String]
known_args
= [ "--data-decl",
"--has-side-effects",
-- Code generators -----------------------------------------------
------------------------------------------------------------------
+gen_hs_source :: Info -> String
gen_hs_source (Info defaults entries) =
"-----------------------------------------------------------------------------\n"
++ "-- |\n"
escape = concatMap (\c -> if c `elem` special then '\\':c:[] else c:[])
where special = "/'`\"@<"
+gen_latex_doc :: Info -> String
gen_latex_doc (Info defaults entries)
= "\\primopdefaults{"
++ mk_options defaults
latex_encode ('\\':cs) = "$\\backslash$" ++ (latex_encode cs)
latex_encode (c:cs) = c:(latex_encode cs)
+gen_wrappers :: Info -> String
gen_wrappers (Info defaults entries)
= "{-# OPTIONS -fno-implicit-prelude #-}\n"
-- Dependencies on Prelude must be explicit in libraries/base, but we
"parAtAbs#", "parAtRel#", "parAtForNow#"
]
-
+gen_primop_list :: Info -> String
gen_primop_list (Info defaults entries)
= unlines (
[ " [" ++ cons first ]
[ " ]" ]
) where (first:rest) = filter is_primop entries
+gen_primop_tag :: Info -> String
gen_primop_tag (Info defaults entries)
= unlines (max_def : zipWith f primop_entries [1..])
where
++ " = _ILIT(" ++ show n ++ ") :: FastInt"
max_def = "maxPrimOpTag = " ++ show (length primop_entries) ++ " :: Int"
+gen_data_decl :: Info -> String
gen_data_decl (Info defaults entries)
= let conss = map cons (filter is_primop entries)
in "data PrimOp\n = " ++ head conss ++ "\n"
-- Create PrimOpInfo text from PrimOpSpecs -----------------------
------------------------------------------------------------------
-
+gen_primop_info :: Info -> String
gen_primop_info (Info defaults entries)
= unlines (map mkPOItext (filter is_primop entries))
+mkPOItext :: Entry -> String
mkPOItext i = mkPOI_LHS_text i ++ mkPOI_RHS_text i
+mkPOI_LHS_text :: Entry -> String
mkPOI_LHS_text i
= "primOpInfo " ++ cons i ++ " = "
+mkPOI_RHS_text :: Entry -> String
mkPOI_RHS_text i
= case cat i of
Compare
++ listify (map ppType argTys) ++ " "
++ "(" ++ ppType resTy ++ ")"
+sl_name :: Entry -> String
sl_name i = "FSLIT(\"" ++ name i ++ "\") "
+ppTyVar :: String -> String
ppTyVar "a" = "alphaTyVar"
ppTyVar "b" = "betaTyVar"
ppTyVar "c" = "gammaTyVar"
ppTyVar "s" = "deltaTyVar"
ppTyVar "o" = "openAlphaTyVar"
-
+ppType :: Ty -> String
ppType (TyApp "Bool" []) = "boolTy"
ppType (TyApp "Int#" []) = "intPrimTy"
ppType (TyApp "BCO#" []) = "bcoPrimTy"
ppType (TyApp "()" []) = "unitTy" -- unitTy is TysWiredIn's name for ()
-
ppType (TyVar "a") = "alphaTy"
ppType (TyVar "b") = "betaTy"
ppType (TyVar "c") = "gammaTy"
listify :: [String] -> String
listify ss = "[" ++ concat (intersperse ", " ss) ++ "]"
+flatTys :: Ty -> ([Ty],Ty)
flatTys (TyF t1 t2) = case flatTys t2 of (ts,t) -> (t1:ts,t)
flatTys other = ([],other)
+tvsIn :: Ty -> [TyVar]
tvsIn (TyF t1 t2) = tvsIn t1 ++ tvsIn t2
tvsIn (TyApp tc tys) = concatMap tvsIn tys
tvsIn (TyVar tv) = [tv]
tvsIn (TyUTup tys) = concatMap tvsIn tys
+arity :: Ty -> Int
arity = length . fst . flatTys
-
------------------------------------------------------------------
-- Abstract syntax -----------------------------------------------
------------------------------------------------------------------
desc :: String } -- description
deriving Show
+is_primop :: Entry -> Bool
is_primop (PrimOpSpec _ _ _ _ _ _) = True
is_primop _ = False
T -> T -> Bool.
Dies with "error" if there's a problem, else returns ().
-}
+myseq :: () -> a -> a
myseq () x = x
+
+myseqAll :: [()] -> a -> a
myseqAll (():ys) x = myseqAll ys x
myseqAll [] x = x
then error ("non-unique default attribute names: " ++ show opt_names ++ "\n")
else myseqAll (map (sanityPrimOp opt_names) primops) ()
+sanityPrimOp :: [String] -> Entry -> ()
sanityPrimOp def_names p
= let p_names = map get_attrib_name (opts p)
p_names_ok
" category " ++ show (cat p) ++ "\n")
else ()
+sane_ty :: Category -> Ty -> Bool
sane_ty Compare (TyF t1 (TyF t2 td))
| t1 == t2 && td == TyApp "Bool" [] = True
sane_ty Monadic (TyF t1 td)
sane_ty _ _
= False
+get_attrib_name :: Option -> String
get_attrib_name (OptionFalse nm) = nm
get_attrib_name (OptionTrue nm) = nm
get_attrib_name (OptionString nm _) = nm
+lookup_attrib :: String -> [Option] -> Maybe Option
lookup_attrib nm [] = Nothing
lookup_attrib nm (a:as)
= if get_attrib_name a == nm then Just a else lookup_attrib nm as
-- The parser ----------------------------------------------------
------------------------------------------------------------------
+keywords :: [String]
keywords = [ "section", "primop", "pseudoop", "primtype", "with"]
-- Due to lack of proper lexing facilities, a hack to zap any
(do c <- satisfy (/= '}')
return [c])
-
-
-------------------
-- Parsing types --
-------------------
(opt (then2 sel22 (lit "->") pType))
-- Atomic types
+paT :: Parser Ty
paT = alts [ then2 TyApp pTycon (many ppT),
pUnboxedTupleTy,
then3 sel23 (lit "(") pType (lit ")"),
]
-- the magic bit in the middle is: T (,T)* so to speak
+pUnboxedTupleTy :: Parser Ty
pUnboxedTupleTy
= then3 (\ _ ts _ -> TyUTup ts)
(lit "(#")
(lit "#)")
-- Primitive types
+ppT :: Parser Ty
ppT = alts [apply TyVar pTyvar,
apply (\tc -> TyApp tc []) pTycon
]
+pTyvar :: Parser String
pTyvar = sat (`notElem` keywords) pName
+
+pTycon :: Parser String
pTycon = alts [pConstructor, lexeme (string "()")]
+
+pName :: Parser String
pName = lexeme (then2 (:) lower (many isIdChar))
+
+pConstructor :: Parser String
pConstructor = lexeme (then2 (:) upper (many isIdChar))
+isIdChar :: Parser Char
isIdChar = satisfy (`elem` idChars)
+
+idChars :: [Char]
idChars = ['a' .. 'z'] ++ ['A' .. 'Z'] ++ ['0' .. '9'] ++ "#_"
+sat :: (a -> Bool) -> Parser a -> Parser a
sat pred p
= do x <- try p
if pred x
-- Helpful additions to Daan's parser stuff ----------------------
------------------------------------------------------------------
+alts :: [Parser a] -> Parser a
alts [p1] = try p1
alts (p1:p2:ps) = (try p1) <|> alts (p2:ps)
+then2 :: (a -> b -> c) -> Parser a -> Parser b -> Parser c
then2 f p1 p2
= do x1 <- p1 ; x2 <- p2 ; return (f x1 x2)
+
+then3 :: (a -> b -> c -> d) -> Parser a -> Parser b -> Parser c -> Parser d
then3 f p1 p2 p3
= do x1 <- p1 ; x2 <- p2 ; x3 <- p3 ; return (f x1 x2 x3)
+
+then4 :: (a -> b -> c -> d -> e) -> Parser a -> Parser b -> Parser c -> Parser d -> Parser e
then4 f p1 p2 p3 p4
= do x1 <- p1 ; x2 <- p2 ; x3 <- p3 ; x4 <- p4 ; return (f x1 x2 x3 x4)
+
+then5 :: (a -> b -> c -> d -> e -> f) -> Parser a -> Parser b -> Parser c -> Parser d -> Parser e -> Parser f
then5 f p1 p2 p3 p4 p5
= do x1 <- p1 ; x2 <- p2 ; x3 <- p3 ; x4 <- p4 ; x5 <- p5
return (f x1 x2 x3 x4 x5)
+
+then6 :: (a -> b -> c -> d -> e -> f -> g) -> Parser a -> Parser b -> Parser c -> Parser d -> Parser e -> Parser f -> Parser g
then6 f p1 p2 p3 p4 p5 p6
= do x1 <- p1 ; x2 <- p2 ; x3 <- p3 ; x4 <- p4 ; x5 <- p5 ; x6 <- p6
return (f x1 x2 x3 x4 x5 x6)
+
+then7 :: (a -> b -> c -> d -> e -> f -> g -> h) -> Parser a -> Parser b -> Parser c -> Parser d -> Parser e -> Parser f -> Parser g -> Parser h
then7 f p1 p2 p3 p4 p5 p6 p7
= do x1 <- p1 ; x2 <- p2 ; x3 <- p3 ; x4 <- p4 ; x5 <- p5 ; x6 <- p6 ; x7 <- p7
return (f x1 x2 x3 x4 x5 x6 x7)
+
+opt :: Parser a -> Parser (Maybe a)
opt p
= (do x <- p; return (Just x)) <|> return Nothing
+
+optdef :: a -> Parser a -> Parser a
optdef d p
= (do x <- p; return x) <|> return d
+sel12 :: a -> b -> a
sel12 a b = a
+
+sel22 :: a -> b -> b
sel22 a b = b
+
+sel23 :: a -> b -> c -> b
sel23 a b c = b
+
+apply :: (a -> b) -> Parser a -> Parser b
apply f p = liftM f p
-- Hacks for zapping whitespace and comments, unfortunately needed
}
<?> "literal string")
-
-
------------------------------------------------------------------
-- end --
------------------------------------------------------------------
-
-
-
projects / ghc-hetmet.git / commitdiff