diff options
Diffstat (limited to 'src/Transfer/Syntax')
| -rw-r--r-- | src/Transfer/Syntax/Abs.hs | 485 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Doc.tex | 333 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Layout.hs | 227 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Lex.hs | 337 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Lex.x | 134 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Par.hs | 1822 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Par.y | 340 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Print.hs | 206 | ||||
| -rw-r--r-- | src/Transfer/Syntax/ResolveLayout.hs | 29 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Skel.hs | 200 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Syntax.cf | 147 | ||||
| -rw-r--r-- | src/Transfer/Syntax/Test.hs | 58 |
12 files changed, 4318 insertions, 0 deletions
diff --git a/src/Transfer/Syntax/Abs.hs b/src/Transfer/Syntax/Abs.hs new file mode 100644 index 000000000..0ccf9ab12 --- /dev/null +++ b/src/Transfer/Syntax/Abs.hs @@ -0,0 +1,485 @@ +{-# OPTIONS_GHC -fglasgow-exts #-} +module Transfer.Syntax.Abs (Tree(..), Module, Import, Decl, ConsDecl, Guard, Pattern, CommaPattern, FieldPattern, Exp, VarOrWild, LetDef, Case, Bind, FieldType, FieldValue, Ident, composOp, composOpM, composOpM_, composOpMPlus, composOpMonoid, composOpFold, compos, johnMajorEq) where + +import Control.Monad (ap,MonadPlus,msum,mplus,mzero) +import Control.Monad.Identity +import Data.Monoid + +-- Haskell module generated by the BNF converter + +data Module_ +type Module = Tree Module_ +data Import_ +type Import = Tree Import_ +data Decl_ +type Decl = Tree Decl_ +data ConsDecl_ +type ConsDecl = Tree ConsDecl_ +data Guard_ +type Guard = Tree Guard_ +data Pattern_ +type Pattern = Tree Pattern_ +data CommaPattern_ +type CommaPattern = Tree CommaPattern_ +data FieldPattern_ +type FieldPattern = Tree FieldPattern_ +data Exp_ +type Exp = Tree Exp_ +data VarOrWild_ +type VarOrWild = Tree VarOrWild_ +data LetDef_ +type LetDef = Tree LetDef_ +data Case_ +type Case = Tree Case_ +data Bind_ +type Bind = Tree Bind_ +data FieldType_ +type FieldType = Tree FieldType_ +data FieldValue_ +type FieldValue = Tree FieldValue_ +data Ident_ +type Ident = Tree Ident_ + +data Tree :: * -> * where + Module :: [Import] -> [Decl] -> Tree Module_ + Import :: Ident -> Tree Import_ + DataDecl :: Ident -> Exp -> [ConsDecl] -> Tree Decl_ + TypeDecl :: Ident -> Exp -> Tree Decl_ + ValueDecl :: Ident -> [Pattern] -> Guard -> Exp -> Tree Decl_ + DeriveDecl :: Ident -> Ident -> Tree Decl_ + ConsDecl :: Ident -> Exp -> Tree ConsDecl_ + GuardExp :: Exp -> Tree Guard_ + GuardNo :: Tree Guard_ + POr :: Pattern -> Pattern -> Tree Pattern_ + PListCons :: Pattern -> Pattern -> Tree Pattern_ + PConsTop :: Ident -> Pattern -> [Pattern] -> Tree Pattern_ + PCons :: Ident -> [Pattern] -> Tree Pattern_ + PRec :: [FieldPattern] -> Tree Pattern_ + PEmptyList :: Tree Pattern_ + PList :: [CommaPattern] -> Tree Pattern_ + PTuple :: CommaPattern -> [CommaPattern] -> Tree Pattern_ + PStr :: String -> Tree Pattern_ + PInt :: Integer -> Tree Pattern_ + PVar :: Ident -> Tree Pattern_ + PWild :: Tree Pattern_ + CommaPattern :: Pattern -> Tree CommaPattern_ + FieldPattern :: Ident -> Pattern -> Tree FieldPattern_ + EPi :: VarOrWild -> Exp -> Exp -> Tree Exp_ + EPiNoVar :: Exp -> Exp -> Tree Exp_ + EAbs :: VarOrWild -> Exp -> Tree Exp_ + ELet :: [LetDef] -> Exp -> Tree Exp_ + ECase :: Exp -> [Case] -> Tree Exp_ + EIf :: Exp -> Exp -> Exp -> Tree Exp_ + EDo :: [Bind] -> Exp -> Tree Exp_ + EBind :: Exp -> Exp -> Tree Exp_ + EBindC :: Exp -> Exp -> Tree Exp_ + EOr :: Exp -> Exp -> Tree Exp_ + EAnd :: Exp -> Exp -> Tree Exp_ + EEq :: Exp -> Exp -> Tree Exp_ + ENe :: Exp -> Exp -> Tree Exp_ + ELt :: Exp -> Exp -> Tree Exp_ + ELe :: Exp -> Exp -> Tree Exp_ + EGt :: Exp -> Exp -> Tree Exp_ + EGe :: Exp -> Exp -> Tree Exp_ + EListCons :: Exp -> Exp -> Tree Exp_ + EAdd :: Exp -> Exp -> Tree Exp_ + ESub :: Exp -> Exp -> Tree Exp_ + EMul :: Exp -> Exp -> Tree Exp_ + EDiv :: Exp -> Exp -> Tree Exp_ + EMod :: Exp -> Exp -> Tree Exp_ + ENeg :: Exp -> Tree Exp_ + EApp :: Exp -> Exp -> Tree Exp_ + EProj :: Exp -> Ident -> Tree Exp_ + ERecType :: [FieldType] -> Tree Exp_ + ERec :: [FieldValue] -> Tree Exp_ + EEmptyList :: Tree Exp_ + EList :: [Exp] -> Tree Exp_ + ETuple :: Exp -> [Exp] -> Tree Exp_ + EVar :: Ident -> Tree Exp_ + EType :: Tree Exp_ + EStr :: String -> Tree Exp_ + EInteger :: Integer -> Tree Exp_ + EDouble :: Double -> Tree Exp_ + EMeta :: Tree Exp_ + VVar :: Ident -> Tree VarOrWild_ + VWild :: Tree VarOrWild_ + LetDef :: Ident -> Exp -> Tree LetDef_ + Case :: Pattern -> Guard -> Exp -> Tree Case_ + BindVar :: VarOrWild -> Exp -> Tree Bind_ + BindNoVar :: Exp -> Tree Bind_ + FieldType :: Ident -> Exp -> Tree FieldType_ + FieldValue :: Ident -> Exp -> Tree FieldValue_ + Ident :: String -> Tree Ident_ + +composOp :: (forall a. Tree a -> Tree a) -> Tree c -> Tree c +composOp f = runIdentity . composOpM (Identity . f) + +composOpM :: Monad m => (forall a. Tree a -> m (Tree a)) -> Tree c -> m (Tree c) +composOpM = compos return ap + +composOpM_ :: Monad m => (forall a. Tree a -> m ()) -> Tree c -> m () +composOpM_ = composOpFold (return ()) (>>) + +composOpMPlus :: MonadPlus m => (forall a. Tree a -> m b) -> Tree c -> m b +composOpMPlus = composOpFold mzero mplus + +composOpMonoid :: Monoid m => (forall a. Tree a -> m) -> Tree c -> m +composOpMonoid = composOpFold mempty mappend + +newtype C b a = C { unC :: b } +composOpFold :: b -> (b -> b -> b) -> (forall a. Tree a -> b) -> Tree c -> b +composOpFold z c f = unC . compos (\_ -> C z) (\(C x) (C y) -> C (c x y)) (C . f) + +compos :: (forall a. a -> m a) + -> (forall a b. m (a -> b) -> m a -> m b) + -> (forall a. Tree a -> m (Tree a)) -> Tree c -> m (Tree c) +compos r a f t = case t of + Module imports decls -> r Module `a` foldr (a . a (r (:)) . f) (r []) imports `a` foldr (a . a (r (:)) . f) (r []) decls + Import i -> r Import `a` f i + DataDecl i exp consdecls -> r DataDecl `a` f i `a` f exp `a` foldr (a . a (r (:)) . f) (r []) consdecls + TypeDecl i exp -> r TypeDecl `a` f i `a` f exp + ValueDecl i patterns guard exp -> r ValueDecl `a` f i `a` foldr (a . a (r (:)) . f) (r []) patterns `a` f guard `a` f exp + DeriveDecl i0 i1 -> r DeriveDecl `a` f i0 `a` f i1 + ConsDecl i exp -> r ConsDecl `a` f i `a` f exp + GuardExp exp -> r GuardExp `a` f exp + POr pattern0 pattern1 -> r POr `a` f pattern0 `a` f pattern1 + PListCons pattern0 pattern1 -> r PListCons `a` f pattern0 `a` f pattern1 + PConsTop i pattern patterns -> r PConsTop `a` f i `a` f pattern `a` foldr (a . a (r (:)) . f) (r []) patterns + PCons i patterns -> r PCons `a` f i `a` foldr (a . a (r (:)) . f) (r []) patterns + PRec fieldpatterns -> r PRec `a` foldr (a . a (r (:)) . f) (r []) fieldpatterns + PList commapatterns -> r PList `a` foldr (a . a (r (:)) . f) (r []) commapatterns + PTuple commapattern commapatterns -> r PTuple `a` f commapattern `a` foldr (a . a (r (:)) . f) (r []) commapatterns + PVar i -> r PVar `a` f i + CommaPattern pattern -> r CommaPattern `a` f pattern + FieldPattern i pattern -> r FieldPattern `a` f i `a` f pattern + EPi varorwild exp0 exp1 -> r EPi `a` f varorwild `a` f exp0 `a` f exp1 + EPiNoVar exp0 exp1 -> r EPiNoVar `a` f exp0 `a` f exp1 + EAbs varorwild exp -> r EAbs `a` f varorwild `a` f exp + ELet letdefs exp -> r ELet `a` foldr (a . a (r (:)) . f) (r []) letdefs `a` f exp + ECase exp cases -> r ECase `a` f exp `a` foldr (a . a (r (:)) . f) (r []) cases + EIf exp0 exp1 exp2 -> r EIf `a` f exp0 `a` f exp1 `a` f exp2 + EDo binds exp -> r EDo `a` foldr (a . a (r (:)) . f) (r []) binds `a` f exp + EBind exp0 exp1 -> r EBind `a` f exp0 `a` f exp1 + EBindC exp0 exp1 -> r EBindC `a` f exp0 `a` f exp1 + EOr exp0 exp1 -> r EOr `a` f exp0 `a` f exp1 + EAnd exp0 exp1 -> r EAnd `a` f exp0 `a` f exp1 + EEq exp0 exp1 -> r EEq `a` f exp0 `a` f exp1 + ENe exp0 exp1 -> r ENe `a` f exp0 `a` f exp1 + ELt exp0 exp1 -> r ELt `a` f exp0 `a` f exp1 + ELe exp0 exp1 -> r ELe `a` f exp0 `a` f exp1 + EGt exp0 exp1 -> r EGt `a` f exp0 `a` f exp1 + EGe exp0 exp1 -> r EGe `a` f exp0 `a` f exp1 + EListCons exp0 exp1 -> r EListCons `a` f exp0 `a` f exp1 + EAdd exp0 exp1 -> r EAdd `a` f exp0 `a` f exp1 + ESub exp0 exp1 -> r ESub `a` f exp0 `a` f exp1 + EMul exp0 exp1 -> r EMul `a` f exp0 `a` f exp1 + EDiv exp0 exp1 -> r EDiv `a` f exp0 `a` f exp1 + EMod exp0 exp1 -> r EMod `a` f exp0 `a` f exp1 + ENeg exp -> r ENeg `a` f exp + EApp exp0 exp1 -> r EApp `a` f exp0 `a` f exp1 + EProj exp i -> r EProj `a` f exp `a` f i + ERecType fieldtypes -> r ERecType `a` foldr (a . a (r (:)) . f) (r []) fieldtypes + ERec fieldvalues -> r ERec `a` foldr (a . a (r (:)) . f) (r []) fieldvalues + EList exps -> r EList `a` foldr (a . a (r (:)) . f) (r []) exps + ETuple exp exps -> r ETuple `a` f exp `a` foldr (a . a (r (:)) . f) (r []) exps + EVar i -> r EVar `a` f i + VVar i -> r VVar `a` f i + LetDef i exp -> r LetDef `a` f i `a` f exp + Case pattern guard exp -> r Case `a` f pattern `a` f guard `a` f exp + BindVar varorwild exp -> r BindVar `a` f varorwild `a` f exp + BindNoVar exp -> r BindNoVar `a` f exp + FieldType i exp -> r FieldType `a` f i `a` f exp + FieldValue i exp -> r FieldValue `a` f i `a` f exp + _ -> r t + +instance Show (Tree c) where + showsPrec n t = case t of + Module imports decls -> opar n . showString "Module" . showChar ' ' . showsPrec 1 imports . showChar ' ' . showsPrec 1 decls . cpar n + Import i -> opar n . showString "Import" . showChar ' ' . showsPrec 1 i . cpar n + DataDecl i exp consdecls -> opar n . showString "DataDecl" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 exp . showChar ' ' . showsPrec 1 consdecls . cpar n + TypeDecl i exp -> opar n . showString "TypeDecl" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 exp . cpar n + ValueDecl i patterns guard exp -> opar n . showString "ValueDecl" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 patterns . showChar ' ' . showsPrec 1 guard . showChar ' ' . showsPrec 1 exp . cpar n + DeriveDecl i0 i1 -> opar n . showString "DeriveDecl" . showChar ' ' . showsPrec 1 i0 . showChar ' ' . showsPrec 1 i1 . cpar n + ConsDecl i exp -> opar n . showString "ConsDecl" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 exp . cpar n + GuardExp exp -> opar n . showString "GuardExp" . showChar ' ' . showsPrec 1 exp . cpar n + GuardNo -> showString "GuardNo" + POr pattern0 pattern1 -> opar n . showString "POr" . showChar ' ' . showsPrec 1 pattern0 . showChar ' ' . showsPrec 1 pattern1 . cpar n + PListCons pattern0 pattern1 -> opar n . showString "PListCons" . showChar ' ' . showsPrec 1 pattern0 . showChar ' ' . showsPrec 1 pattern1 . cpar n + PConsTop i pattern patterns -> opar n . showString "PConsTop" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 pattern . showChar ' ' . showsPrec 1 patterns . cpar n + PCons i patterns -> opar n . showString "PCons" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 patterns . cpar n + PRec fieldpatterns -> opar n . showString "PRec" . showChar ' ' . showsPrec 1 fieldpatterns . cpar n + PEmptyList -> showString "PEmptyList" + PList commapatterns -> opar n . showString "PList" . showChar ' ' . showsPrec 1 commapatterns . cpar n + PTuple commapattern commapatterns -> opar n . showString "PTuple" . showChar ' ' . showsPrec 1 commapattern . showChar ' ' . showsPrec 1 commapatterns . cpar n + PStr str -> opar n . showString "PStr" . showChar ' ' . showsPrec 1 str . cpar n + PInt n -> opar n . showString "PInt" . showChar ' ' . showsPrec 1 n . cpar n + PVar i -> opar n . showString "PVar" . showChar ' ' . showsPrec 1 i . cpar n + PWild -> showString "PWild" + CommaPattern pattern -> opar n . showString "CommaPattern" . showChar ' ' . showsPrec 1 pattern . cpar n + FieldPattern i pattern -> opar n . showString "FieldPattern" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 pattern . cpar n + EPi varorwild exp0 exp1 -> opar n . showString "EPi" . showChar ' ' . showsPrec 1 varorwild . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EPiNoVar exp0 exp1 -> opar n . showString "EPiNoVar" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EAbs varorwild exp -> opar n . showString "EAbs" . showChar ' ' . showsPrec 1 varorwild . showChar ' ' . showsPrec 1 exp . cpar n + ELet letdefs exp -> opar n . showString "ELet" . showChar ' ' . showsPrec 1 letdefs . showChar ' ' . showsPrec 1 exp . cpar n + ECase exp cases -> opar n . showString "ECase" . showChar ' ' . showsPrec 1 exp . showChar ' ' . showsPrec 1 cases . cpar n + EIf exp0 exp1 exp2 -> opar n . showString "EIf" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . showChar ' ' . showsPrec 1 exp2 . cpar n + EDo binds exp -> opar n . showString "EDo" . showChar ' ' . showsPrec 1 binds . showChar ' ' . showsPrec 1 exp . cpar n + EBind exp0 exp1 -> opar n . showString "EBind" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EBindC exp0 exp1 -> opar n . showString "EBindC" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EOr exp0 exp1 -> opar n . showString "EOr" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EAnd exp0 exp1 -> opar n . showString "EAnd" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EEq exp0 exp1 -> opar n . showString "EEq" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + ENe exp0 exp1 -> opar n . showString "ENe" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + ELt exp0 exp1 -> opar n . showString "ELt" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + ELe exp0 exp1 -> opar n . showString "ELe" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EGt exp0 exp1 -> opar n . showString "EGt" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EGe exp0 exp1 -> opar n . showString "EGe" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EListCons exp0 exp1 -> opar n . showString "EListCons" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EAdd exp0 exp1 -> opar n . showString "EAdd" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + ESub exp0 exp1 -> opar n . showString "ESub" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EMul exp0 exp1 -> opar n . showString "EMul" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EDiv exp0 exp1 -> opar n . showString "EDiv" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EMod exp0 exp1 -> opar n . showString "EMod" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + ENeg exp -> opar n . showString "ENeg" . showChar ' ' . showsPrec 1 exp . cpar n + EApp exp0 exp1 -> opar n . showString "EApp" . showChar ' ' . showsPrec 1 exp0 . showChar ' ' . showsPrec 1 exp1 . cpar n + EProj exp i -> opar n . showString "EProj" . showChar ' ' . showsPrec 1 exp . showChar ' ' . showsPrec 1 i . cpar n + ERecType fieldtypes -> opar n . showString "ERecType" . showChar ' ' . showsPrec 1 fieldtypes . cpar n + ERec fieldvalues -> opar n . showString "ERec" . showChar ' ' . showsPrec 1 fieldvalues . cpar n + EEmptyList -> showString "EEmptyList" + EList exps -> opar n . showString "EList" . showChar ' ' . showsPrec 1 exps . cpar n + ETuple exp exps -> opar n . showString "ETuple" . showChar ' ' . showsPrec 1 exp . showChar ' ' . showsPrec 1 exps . cpar n + EVar i -> opar n . showString "EVar" . showChar ' ' . showsPrec 1 i . cpar n + EType -> showString "EType" + EStr str -> opar n . showString "EStr" . showChar ' ' . showsPrec 1 str . cpar n + EInteger n -> opar n . showString "EInteger" . showChar ' ' . showsPrec 1 n . cpar n + EDouble d -> opar n . showString "EDouble" . showChar ' ' . showsPrec 1 d . cpar n + EMeta -> showString "EMeta" + VVar i -> opar n . showString "VVar" . showChar ' ' . showsPrec 1 i . cpar n + VWild -> showString "VWild" + LetDef i exp -> opar n . showString "LetDef" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 exp . cpar n + Case pattern guard exp -> opar n . showString "Case" . showChar ' ' . showsPrec 1 pattern . showChar ' ' . showsPrec 1 guard . showChar ' ' . showsPrec 1 exp . cpar n + BindVar varorwild exp -> opar n . showString "BindVar" . showChar ' ' . showsPrec 1 varorwild . showChar ' ' . showsPrec 1 exp . cpar n + BindNoVar exp -> opar n . showString "BindNoVar" . showChar ' ' . showsPrec 1 exp . cpar n + FieldType i exp -> opar n . showString "FieldType" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 exp . cpar n + FieldValue i exp -> opar n . showString "FieldValue" . showChar ' ' . showsPrec 1 i . showChar ' ' . showsPrec 1 exp . cpar n + Ident str -> opar n . showString "Ident" . showChar ' ' . showsPrec 1 str . cpar n + where opar n = if n > 0 then showChar '(' else id + cpar n = if n > 0 then showChar ')' else id + +instance Eq (Tree c) where (==) = johnMajorEq + +johnMajorEq :: Tree a -> Tree b -> Bool +johnMajorEq (Module imports decls) (Module imports_ decls_) = imports == imports_ && decls == decls_ +johnMajorEq (Import i) (Import i_) = i == i_ +johnMajorEq (DataDecl i exp consdecls) (DataDecl i_ exp_ consdecls_) = i == i_ && exp == exp_ && consdecls == consdecls_ +johnMajorEq (TypeDecl i exp) (TypeDecl i_ exp_) = i == i_ && exp == exp_ +johnMajorEq (ValueDecl i patterns guard exp) (ValueDecl i_ patterns_ guard_ exp_) = i == i_ && patterns == patterns_ && guard == guard_ && exp == exp_ +johnMajorEq (DeriveDecl i0 i1) (DeriveDecl i0_ i1_) = i0 == i0_ && i1 == i1_ +johnMajorEq (ConsDecl i exp) (ConsDecl i_ exp_) = i == i_ && exp == exp_ +johnMajorEq (GuardExp exp) (GuardExp exp_) = exp == exp_ +johnMajorEq GuardNo GuardNo = True +johnMajorEq (POr pattern0 pattern1) (POr pattern0_ pattern1_) = pattern0 == pattern0_ && pattern1 == pattern1_ +johnMajorEq (PListCons pattern0 pattern1) (PListCons pattern0_ pattern1_) = pattern0 == pattern0_ && pattern1 == pattern1_ +johnMajorEq (PConsTop i pattern patterns) (PConsTop i_ pattern_ patterns_) = i == i_ && pattern == pattern_ && patterns == patterns_ +johnMajorEq (PCons i patterns) (PCons i_ patterns_) = i == i_ && patterns == patterns_ +johnMajorEq (PRec fieldpatterns) (PRec fieldpatterns_) = fieldpatterns == fieldpatterns_ +johnMajorEq PEmptyList PEmptyList = True +johnMajorEq (PList commapatterns) (PList commapatterns_) = commapatterns == commapatterns_ +johnMajorEq (PTuple commapattern commapatterns) (PTuple commapattern_ commapatterns_) = commapattern == commapattern_ && commapatterns == commapatterns_ +johnMajorEq (PStr str) (PStr str_) = str == str_ +johnMajorEq (PInt n) (PInt n_) = n == n_ +johnMajorEq (PVar i) (PVar i_) = i == i_ +johnMajorEq PWild PWild = True +johnMajorEq (CommaPattern pattern) (CommaPattern pattern_) = pattern == pattern_ +johnMajorEq (FieldPattern i pattern) (FieldPattern i_ pattern_) = i == i_ && pattern == pattern_ +johnMajorEq (EPi varorwild exp0 exp1) (EPi varorwild_ exp0_ exp1_) = varorwild == varorwild_ && exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EPiNoVar exp0 exp1) (EPiNoVar exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EAbs varorwild exp) (EAbs varorwild_ exp_) = varorwild == varorwild_ && exp == exp_ +johnMajorEq (ELet letdefs exp) (ELet letdefs_ exp_) = letdefs == letdefs_ && exp == exp_ +johnMajorEq (ECase exp cases) (ECase exp_ cases_) = exp == exp_ && cases == cases_ +johnMajorEq (EIf exp0 exp1 exp2) (EIf exp0_ exp1_ exp2_) = exp0 == exp0_ && exp1 == exp1_ && exp2 == exp2_ +johnMajorEq (EDo binds exp) (EDo binds_ exp_) = binds == binds_ && exp == exp_ +johnMajorEq (EBind exp0 exp1) (EBind exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EBindC exp0 exp1) (EBindC exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EOr exp0 exp1) (EOr exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EAnd exp0 exp1) (EAnd exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EEq exp0 exp1) (EEq exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (ENe exp0 exp1) (ENe exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (ELt exp0 exp1) (ELt exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (ELe exp0 exp1) (ELe exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EGt exp0 exp1) (EGt exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EGe exp0 exp1) (EGe exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EListCons exp0 exp1) (EListCons exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EAdd exp0 exp1) (EAdd exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (ESub exp0 exp1) (ESub exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EMul exp0 exp1) (EMul exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EDiv exp0 exp1) (EDiv exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EMod exp0 exp1) (EMod exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (ENeg exp) (ENeg exp_) = exp == exp_ +johnMajorEq (EApp exp0 exp1) (EApp exp0_ exp1_) = exp0 == exp0_ && exp1 == exp1_ +johnMajorEq (EProj exp i) (EProj exp_ i_) = exp == exp_ && i == i_ +johnMajorEq (ERecType fieldtypes) (ERecType fieldtypes_) = fieldtypes == fieldtypes_ +johnMajorEq (ERec fieldvalues) (ERec fieldvalues_) = fieldvalues == fieldvalues_ +johnMajorEq EEmptyList EEmptyList = True +johnMajorEq (EList exps) (EList exps_) = exps == exps_ +johnMajorEq (ETuple exp exps) (ETuple exp_ exps_) = exp == exp_ && exps == exps_ +johnMajorEq (EVar i) (EVar i_) = i == i_ +johnMajorEq EType EType = True +johnMajorEq (EStr str) (EStr str_) = str == str_ +johnMajorEq (EInteger n) (EInteger n_) = n == n_ +johnMajorEq (EDouble d) (EDouble d_) = d == d_ +johnMajorEq EMeta EMeta = True +johnMajorEq (VVar i) (VVar i_) = i == i_ +johnMajorEq VWild VWild = True +johnMajorEq (LetDef i exp) (LetDef i_ exp_) = i == i_ && exp == exp_ +johnMajorEq (Case pattern guard exp) (Case pattern_ guard_ exp_) = pattern == pattern_ && guard == guard_ && exp == exp_ +johnMajorEq (BindVar varorwild exp) (BindVar varorwild_ exp_) = varorwild == varorwild_ && exp == exp_ +johnMajorEq (BindNoVar exp) (BindNoVar exp_) = exp == exp_ +johnMajorEq (FieldType i exp) (FieldType i_ exp_) = i == i_ && exp == exp_ +johnMajorEq (FieldValue i exp) (FieldValue i_ exp_) = i == i_ && exp == exp_ +johnMajorEq (Ident str) (Ident str_) = str == str_ +johnMajorEq _ _ = False + +instance Ord (Tree c) where + compare x y = compare (index x) (index y) `mappend` compareSame x y +index :: Tree c -> Int +index (Module _ _) = 0 +index (Import _) = 1 +index (DataDecl _ _ _) = 2 +index (TypeDecl _ _) = 3 +index (ValueDecl _ _ _ _) = 4 +index (DeriveDecl _ _) = 5 +index (ConsDecl _ _) = 6 +index (GuardExp _) = 7 +index (GuardNo ) = 8 +index (POr _ _) = 9 +index (PListCons _ _) = 10 +index (PConsTop _ _ _) = 11 +index (PCons _ _) = 12 +index (PRec _) = 13 +index (PEmptyList ) = 14 +index (PList _) = 15 +index (PTuple _ _) = 16 +index (PStr _) = 17 +index (PInt _) = 18 +index (PVar _) = 19 +index (PWild ) = 20 +index (CommaPattern _) = 21 +index (FieldPattern _ _) = 22 +index (EPi _ _ _) = 23 +index (EPiNoVar _ _) = 24 +index (EAbs _ _) = 25 +index (ELet _ _) = 26 +index (ECase _ _) = 27 +index (EIf _ _ _) = 28 +index (EDo _ _) = 29 +index (EBind _ _) = 30 +index (EBindC _ _) = 31 +index (EOr _ _) = 32 +index (EAnd _ _) = 33 +index (EEq _ _) = 34 +index (ENe _ _) = 35 +index (ELt _ _) = 36 +index (ELe _ _) = 37 +index (EGt _ _) = 38 +index (EGe _ _) = 39 +index (EListCons _ _) = 40 +index (EAdd _ _) = 41 +index (ESub _ _) = 42 +index (EMul _ _) = 43 +index (EDiv _ _) = 44 +index (EMod _ _) = 45 +index (ENeg _) = 46 +index (EApp _ _) = 47 +index (EProj _ _) = 48 +index (ERecType _) = 49 +index (ERec _) = 50 +index (EEmptyList ) = 51 +index (EList _) = 52 +index (ETuple _ _) = 53 +index (EVar _) = 54 +index (EType ) = 55 +index (EStr _) = 56 +index (EInteger _) = 57 +index (EDouble _) = 58 +index (EMeta ) = 59 +index (VVar _) = 60 +index (VWild ) = 61 +index (LetDef _ _) = 62 +index (Case _ _ _) = 63 +index (BindVar _ _) = 64 +index (BindNoVar _) = 65 +index (FieldType _ _) = 66 +index (FieldValue _ _) = 67 +index (Ident _) = 68 +compareSame :: Tree c -> Tree c -> Ordering +compareSame (Module imports decls) (Module imports_ decls_) = mappend (compare imports imports_) (compare decls decls_) +compareSame (Import i) (Import i_) = compare i i_ +compareSame (DataDecl i exp consdecls) (DataDecl i_ exp_ consdecls_) = mappend (compare i i_) (mappend (compare exp exp_) (compare consdecls consdecls_)) +compareSame (TypeDecl i exp) (TypeDecl i_ exp_) = mappend (compare i i_) (compare exp exp_) +compareSame (ValueDecl i patterns guard exp) (ValueDecl i_ patterns_ guard_ exp_) = mappend (compare i i_) (mappend (compare patterns patterns_) (mappend (compare guard guard_) (compare exp exp_))) +compareSame (DeriveDecl i0 i1) (DeriveDecl i0_ i1_) = mappend (compare i0 i0_) (compare i1 i1_) +compareSame (ConsDecl i exp) (ConsDecl i_ exp_) = mappend (compare i i_) (compare exp exp_) +compareSame (GuardExp exp) (GuardExp exp_) = compare exp exp_ +compareSame GuardNo GuardNo = EQ +compareSame (POr pattern0 pattern1) (POr pattern0_ pattern1_) = mappend (compare pattern0 pattern0_) (compare pattern1 pattern1_) +compareSame (PListCons pattern0 pattern1) (PListCons pattern0_ pattern1_) = mappend (compare pattern0 pattern0_) (compare pattern1 pattern1_) +compareSame (PConsTop i pattern patterns) (PConsTop i_ pattern_ patterns_) = mappend (compare i i_) (mappend (compare pattern pattern_) (compare patterns patterns_)) +compareSame (PCons i patterns) (PCons i_ patterns_) = mappend (compare i i_) (compare patterns patterns_) +compareSame (PRec fieldpatterns) (PRec fieldpatterns_) = compare fieldpatterns fieldpatterns_ +compareSame PEmptyList PEmptyList = EQ +compareSame (PList commapatterns) (PList commapatterns_) = compare commapatterns commapatterns_ +compareSame (PTuple commapattern commapatterns) (PTuple commapattern_ commapatterns_) = mappend (compare commapattern commapattern_) (compare commapatterns commapatterns_) +compareSame (PStr str) (PStr str_) = compare str str_ +compareSame (PInt n) (PInt n_) = compare n n_ +compareSame (PVar i) (PVar i_) = compare i i_ +compareSame PWild PWild = EQ +compareSame (CommaPattern pattern) (CommaPattern pattern_) = compare pattern pattern_ +compareSame (FieldPattern i pattern) (FieldPattern i_ pattern_) = mappend (compare i i_) (compare pattern pattern_) +compareSame (EPi varorwild exp0 exp1) (EPi varorwild_ exp0_ exp1_) = mappend (compare varorwild varorwild_) (mappend (compare exp0 exp0_) (compare exp1 exp1_)) +compareSame (EPiNoVar exp0 exp1) (EPiNoVar exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EAbs varorwild exp) (EAbs varorwild_ exp_) = mappend (compare varorwild varorwild_) (compare exp exp_) +compareSame (ELet letdefs exp) (ELet letdefs_ exp_) = mappend (compare letdefs letdefs_) (compare exp exp_) +compareSame (ECase exp cases) (ECase exp_ cases_) = mappend (compare exp exp_) (compare cases cases_) +compareSame (EIf exp0 exp1 exp2) (EIf exp0_ exp1_ exp2_) = mappend (compare exp0 exp0_) (mappend (compare exp1 exp1_) (compare exp2 exp2_)) +compareSame (EDo binds exp) (EDo binds_ exp_) = mappend (compare binds binds_) (compare exp exp_) +compareSame (EBind exp0 exp1) (EBind exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EBindC exp0 exp1) (EBindC exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EOr exp0 exp1) (EOr exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EAnd exp0 exp1) (EAnd exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EEq exp0 exp1) (EEq exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (ENe exp0 exp1) (ENe exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (ELt exp0 exp1) (ELt exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (ELe exp0 exp1) (ELe exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EGt exp0 exp1) (EGt exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EGe exp0 exp1) (EGe exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EListCons exp0 exp1) (EListCons exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EAdd exp0 exp1) (EAdd exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (ESub exp0 exp1) (ESub exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EMul exp0 exp1) (EMul exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EDiv exp0 exp1) (EDiv exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EMod exp0 exp1) (EMod exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (ENeg exp) (ENeg exp_) = compare exp exp_ +compareSame (EApp exp0 exp1) (EApp exp0_ exp1_) = mappend (compare exp0 exp0_) (compare exp1 exp1_) +compareSame (EProj exp i) (EProj exp_ i_) = mappend (compare exp exp_) (compare i i_) +compareSame (ERecType fieldtypes) (ERecType fieldtypes_) = compare fieldtypes fieldtypes_ +compareSame (ERec fieldvalues) (ERec fieldvalues_) = compare fieldvalues fieldvalues_ +compareSame EEmptyList EEmptyList = EQ +compareSame (EList exps) (EList exps_) = compare exps exps_ +compareSame (ETuple exp exps) (ETuple exp_ exps_) = mappend (compare exp exp_) (compare exps exps_) +compareSame (EVar i) (EVar i_) = compare i i_ +compareSame EType EType = EQ +compareSame (EStr str) (EStr str_) = compare str str_ +compareSame (EInteger n) (EInteger n_) = compare n n_ +compareSame (EDouble d) (EDouble d_) = compare d d_ +compareSame EMeta EMeta = EQ +compareSame (VVar i) (VVar i_) = compare i i_ +compareSame VWild VWild = EQ +compareSame (LetDef i exp) (LetDef i_ exp_) = mappend (compare i i_) (compare exp exp_) +compareSame (Case pattern guard exp) (Case pattern_ guard_ exp_) = mappend (compare pattern pattern_) (mappend (compare guard guard_) (compare exp exp_)) +compareSame (BindVar varorwild exp) (BindVar varorwild_ exp_) = mappend (compare varorwild varorwild_) (compare exp exp_) +compareSame (BindNoVar exp) (BindNoVar exp_) = compare exp exp_ +compareSame (FieldType i exp) (FieldType i_ exp_) = mappend (compare i i_) (compare exp exp_) +compareSame (FieldValue i exp) (FieldValue i_ exp_) = mappend (compare i i_) (compare exp exp_) +compareSame (Ident str) (Ident str_) = compare str str_ +compareSame x y = error "BNFC error:" compareSame diff --git a/src/Transfer/Syntax/Doc.tex b/src/Transfer/Syntax/Doc.tex new file mode 100644 index 000000000..603940459 --- /dev/null +++ b/src/Transfer/Syntax/Doc.tex @@ -0,0 +1,333 @@ +\batchmode +%This Latex file is machine-generated by the BNF-converter + +\documentclass[a4paper,11pt]{article} +\author{BNF-converter} +\title{The Language Syntax} +\setlength{\parindent}{0mm} +\setlength{\parskip}{1mm} +\begin{document} + +\maketitle + +\newcommand{\emptyP}{\mbox{$\epsilon$}} +\newcommand{\terminal}[1]{\mbox{{\texttt {#1}}}} +\newcommand{\nonterminal}[1]{\mbox{$\langle \mbox{{\sl #1 }} \! \rangle$}} +\newcommand{\arrow}{\mbox{::=}} +\newcommand{\delimit}{\mbox{$|$}} +\newcommand{\reserved}[1]{\mbox{{\texttt {#1}}}} +\newcommand{\literal}[1]{\mbox{{\texttt {#1}}}} +\newcommand{\symb}[1]{\mbox{{\texttt {#1}}}} + +This document was automatically generated by the {\em BNF-Converter}. It was generated together with the lexer, the parser, and the abstract syntax module, which guarantees that the document matches with the implementation of the language (provided no hand-hacking has taken place). + +\section*{The lexical structure of Syntax} +\subsection*{Identifiers} +Identifiers \nonterminal{Ident} are unquoted strings beginning with a letter, +followed by any combination of letters, digits, and the characters {\tt \_ '}, +reserved words excluded. + + +\subsection*{Literals} +String literals \nonterminal{String}\ have the form +\terminal{"}$x$\terminal{"}, where $x$ is any sequence of any characters +except \terminal{"}\ unless preceded by \verb6\6. + + +Integer literals \nonterminal{Int}\ are nonempty sequences of digits. + + +Double-precision float literals \nonterminal{Double}\ have the structure +indicated by the regular expression $\nonterminal{digit}+ \mbox{{\it `.'}} \nonterminal{digit}+ (\mbox{{\it `e'}} \mbox{{\it `-'}}? \nonterminal{digit}+)?$ i.e.\ +two sequences of digits separated by a decimal point, optionally +followed by an unsigned or negative exponent. + + + + +\subsection*{Reserved words and symbols} +The set of reserved words is the set of terminals appearing in the grammar. Those reserved words that consist of non-letter characters are called symbols, and they are treated in a different way from those that are similar to identifiers. The lexer follows rules familiar from languages like Haskell, C, and Java, including longest match and spacing conventions. + +The reserved words used in Syntax are the following: \\ + +\begin{tabular}{lll} +{\reserved{Type}} &{\reserved{case}} &{\reserved{data}} \\ +{\reserved{derive}} &{\reserved{do}} &{\reserved{else}} \\ +{\reserved{if}} &{\reserved{import}} &{\reserved{in}} \\ +{\reserved{let}} &{\reserved{of}} &{\reserved{rec}} \\ +{\reserved{sig}} &{\reserved{then}} &{\reserved{where}} \\ +\end{tabular}\\ + +The symbols used in Syntax are the following: \\ + +\begin{tabular}{lll} +{\symb{;}} &{\symb{:}} &{\symb{\{}} \\ +{\symb{\}}} &{\symb{{$=$}}} &{\symb{{$|$}}} \\ +{\symb{{$|$}{$|$}}} &{\symb{::}} &{\symb{(}} \\ +{\symb{)}} &{\symb{[}} &{\symb{]}} \\ +{\symb{,}} &{\symb{\_}} &{\symb{{$-$}{$>$}}} \\ +{\symb{$\backslash$}} &{\symb{{$<$}{$-$}}} &{\symb{{$>$}{$>$}{$=$}}} \\ +{\symb{{$>$}{$>$}}} &{\symb{\&\&}} &{\symb{{$=$}{$=$}}} \\ +{\symb{/{$=$}}} &{\symb{{$<$}}} &{\symb{{$<$}{$=$}}} \\ +{\symb{{$>$}}} &{\symb{{$>$}{$=$}}} &{\symb{{$+$}}} \\ +{\symb{{$-$}}} &{\symb{*}} &{\symb{/}} \\ +{\symb{\%}} &{\symb{.}} &{\symb{?}} \\ +\end{tabular}\\ + +\subsection*{Comments} +Single-line comments begin with {\symb{{$-$}{$-$}}}. \\Multiple-line comments are enclosed with {\symb{\{{$-$}}} and {\symb{{$-$}\}}}. + +\section*{The syntactic structure of Syntax} +Non-terminals are enclosed between $\langle$ and $\rangle$. +The symbols {\arrow} (production), {\delimit} (union) +and {\emptyP} (empty rule) belong to the BNF notation. +All other symbols are terminals.\\ + +\begin{tabular}{lll} +{\nonterminal{Module}} & {\arrow} &{\nonterminal{ListImport}} {\nonterminal{ListDecl}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Import}} & {\arrow} &{\terminal{import}} {\nonterminal{Ident}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListImport}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{Import}} {\terminal{;}} {\nonterminal{ListImport}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Decl}} & {\arrow} &{\terminal{data}} {\nonterminal{Ident}} {\terminal{:}} {\nonterminal{Exp}} {\terminal{where}} {\terminal{\{}} {\nonterminal{ListConsDecl}} {\terminal{\}}} \\ + & {\delimit} &{\nonterminal{Ident}} {\terminal{:}} {\nonterminal{Exp}} \\ + & {\delimit} &{\nonterminal{Ident}} {\nonterminal{ListPattern}} {\nonterminal{Guard}} {\terminal{{$=$}}} {\nonterminal{Exp}} \\ + & {\delimit} &{\terminal{derive}} {\nonterminal{Ident}} {\nonterminal{Ident}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListDecl}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{Decl}} {\terminal{;}} {\nonterminal{ListDecl}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ConsDecl}} & {\arrow} &{\nonterminal{Ident}} {\terminal{:}} {\nonterminal{Exp}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListConsDecl}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{ConsDecl}} \\ + & {\delimit} &{\nonterminal{ConsDecl}} {\terminal{;}} {\nonterminal{ListConsDecl}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Guard}} & {\arrow} &{\terminal{{$|$}}} {\nonterminal{Exp1}} \\ + & {\delimit} &{\emptyP} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Pattern}} & {\arrow} &{\nonterminal{Pattern1}} {\terminal{{$|$}{$|$}}} {\nonterminal{Pattern}} \\ + & {\delimit} &{\nonterminal{Pattern1}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Pattern1}} & {\arrow} &{\nonterminal{Pattern2}} {\terminal{::}} {\nonterminal{Pattern1}} \\ + & {\delimit} &{\nonterminal{Pattern2}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Pattern2}} & {\arrow} &{\nonterminal{Ident}} {\nonterminal{Pattern3}} {\nonterminal{ListPattern}} \\ + & {\delimit} &{\nonterminal{Pattern3}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Pattern3}} & {\arrow} &{\terminal{rec}} {\terminal{\{}} {\nonterminal{ListFieldPattern}} {\terminal{\}}} \\ + & {\delimit} &{\terminal{[}} {\terminal{]}} \\ + & {\delimit} &{\terminal{[}} {\nonterminal{ListCommaPattern}} {\terminal{]}} \\ + & {\delimit} &{\terminal{(}} {\nonterminal{CommaPattern}} {\terminal{,}} {\nonterminal{ListCommaPattern}} {\terminal{)}} \\ + & {\delimit} &{\nonterminal{String}} \\ + & {\delimit} &{\nonterminal{Integer}} \\ + & {\delimit} &{\nonterminal{Ident}} \\ + & {\delimit} &{\terminal{\_}} \\ + & {\delimit} &{\terminal{(}} {\nonterminal{Pattern}} {\terminal{)}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{CommaPattern}} & {\arrow} &{\nonterminal{Pattern}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListCommaPattern}} & {\arrow} &{\nonterminal{CommaPattern}} \\ + & {\delimit} &{\nonterminal{CommaPattern}} {\terminal{,}} {\nonterminal{ListCommaPattern}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListPattern}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{Pattern3}} {\nonterminal{ListPattern}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{FieldPattern}} & {\arrow} &{\nonterminal{Ident}} {\terminal{{$=$}}} {\nonterminal{Pattern}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListFieldPattern}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{FieldPattern}} \\ + & {\delimit} &{\nonterminal{FieldPattern}} {\terminal{;}} {\nonterminal{ListFieldPattern}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp}} & {\arrow} &{\terminal{(}} {\nonterminal{VarOrWild}} {\terminal{:}} {\nonterminal{Exp}} {\terminal{)}} {\terminal{{$-$}{$>$}}} {\nonterminal{Exp}} \\ + & {\delimit} &{\nonterminal{Exp1}} {\terminal{{$-$}{$>$}}} {\nonterminal{Exp}} \\ + & {\delimit} &{\nonterminal{Exp1}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{VarOrWild}} & {\arrow} &{\nonterminal{Ident}} \\ + & {\delimit} &{\terminal{\_}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp1}} & {\arrow} &{\terminal{$\backslash$}} {\nonterminal{VarOrWild}} {\terminal{{$-$}{$>$}}} {\nonterminal{Exp1}} \\ + & {\delimit} &{\terminal{let}} {\terminal{\{}} {\nonterminal{ListLetDef}} {\terminal{\}}} {\terminal{in}} {\nonterminal{Exp1}} \\ + & {\delimit} &{\terminal{case}} {\nonterminal{Exp}} {\terminal{of}} {\terminal{\{}} {\nonterminal{ListCase}} {\terminal{\}}} \\ + & {\delimit} &{\terminal{if}} {\nonterminal{Exp}} {\terminal{then}} {\nonterminal{Exp}} {\terminal{else}} {\nonterminal{Exp1}} \\ + & {\delimit} &{\terminal{do}} {\terminal{\{}} {\nonterminal{ListBind}} {\nonterminal{Exp}} {\terminal{\}}} \\ + & {\delimit} &{\nonterminal{Exp2}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{LetDef}} & {\arrow} &{\nonterminal{Ident}} {\terminal{{$=$}}} {\nonterminal{Exp}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListLetDef}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{LetDef}} \\ + & {\delimit} &{\nonterminal{LetDef}} {\terminal{;}} {\nonterminal{ListLetDef}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Case}} & {\arrow} &{\nonterminal{Pattern}} {\nonterminal{Guard}} {\terminal{{$-$}{$>$}}} {\nonterminal{Exp}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListCase}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{Case}} \\ + & {\delimit} &{\nonterminal{Case}} {\terminal{;}} {\nonterminal{ListCase}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Bind}} & {\arrow} &{\nonterminal{VarOrWild}} {\terminal{{$<$}{$-$}}} {\nonterminal{Exp}} \\ + & {\delimit} &{\nonterminal{Exp}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListBind}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{Bind}} {\terminal{;}} {\nonterminal{ListBind}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp3}} & {\arrow} &{\nonterminal{Exp3}} {\terminal{{$>$}{$>$}{$=$}}} {\nonterminal{Exp4}} \\ + & {\delimit} &{\nonterminal{Exp3}} {\terminal{{$>$}{$>$}}} {\nonterminal{Exp4}} \\ + & {\delimit} &{\nonterminal{Exp4}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp4}} & {\arrow} &{\nonterminal{Exp5}} {\terminal{{$|$}{$|$}}} {\nonterminal{Exp4}} \\ + & {\delimit} &{\nonterminal{Exp5}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp5}} & {\arrow} &{\nonterminal{Exp6}} {\terminal{\&\&}} {\nonterminal{Exp5}} \\ + & {\delimit} &{\nonterminal{Exp6}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp6}} & {\arrow} &{\nonterminal{Exp7}} {\terminal{{$=$}{$=$}}} {\nonterminal{Exp7}} \\ + & {\delimit} &{\nonterminal{Exp7}} {\terminal{/{$=$}}} {\nonterminal{Exp7}} \\ + & {\delimit} &{\nonterminal{Exp7}} {\terminal{{$<$}}} {\nonterminal{Exp7}} \\ + & {\delimit} &{\nonterminal{Exp7}} {\terminal{{$<$}{$=$}}} {\nonterminal{Exp7}} \\ + & {\delimit} &{\nonterminal{Exp7}} {\terminal{{$>$}}} {\nonterminal{Exp7}} \\ + & {\delimit} &{\nonterminal{Exp7}} {\terminal{{$>$}{$=$}}} {\nonterminal{Exp7}} \\ + & {\delimit} &{\nonterminal{Exp7}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp7}} & {\arrow} &{\nonterminal{Exp8}} {\terminal{::}} {\nonterminal{Exp7}} \\ + & {\delimit} &{\nonterminal{Exp8}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp8}} & {\arrow} &{\nonterminal{Exp8}} {\terminal{{$+$}}} {\nonterminal{Exp9}} \\ + & {\delimit} &{\nonterminal{Exp8}} {\terminal{{$-$}}} {\nonterminal{Exp9}} \\ + & {\delimit} &{\nonterminal{Exp9}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp9}} & {\arrow} &{\nonterminal{Exp9}} {\terminal{*}} {\nonterminal{Exp10}} \\ + & {\delimit} &{\nonterminal{Exp9}} {\terminal{/}} {\nonterminal{Exp10}} \\ + & {\delimit} &{\nonterminal{Exp9}} {\terminal{\%}} {\nonterminal{Exp10}} \\ + & {\delimit} &{\nonterminal{Exp10}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp10}} & {\arrow} &{\terminal{{$-$}}} {\nonterminal{Exp10}} \\ + & {\delimit} &{\nonterminal{Exp11}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp11}} & {\arrow} &{\nonterminal{Exp11}} {\nonterminal{Exp12}} \\ + & {\delimit} &{\nonterminal{Exp12}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp12}} & {\arrow} &{\nonterminal{Exp12}} {\terminal{.}} {\nonterminal{Ident}} \\ + & {\delimit} &{\nonterminal{Exp13}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp13}} & {\arrow} &{\terminal{sig}} {\terminal{\{}} {\nonterminal{ListFieldType}} {\terminal{\}}} \\ + & {\delimit} &{\terminal{rec}} {\terminal{\{}} {\nonterminal{ListFieldValue}} {\terminal{\}}} \\ + & {\delimit} &{\terminal{[}} {\terminal{]}} \\ + & {\delimit} &{\terminal{[}} {\nonterminal{ListExp}} {\terminal{]}} \\ + & {\delimit} &{\terminal{(}} {\nonterminal{Exp}} {\terminal{,}} {\nonterminal{ListExp}} {\terminal{)}} \\ + & {\delimit} &{\nonterminal{Ident}} \\ + & {\delimit} &{\terminal{Type}} \\ + & {\delimit} &{\nonterminal{String}} \\ + & {\delimit} &{\nonterminal{Integer}} \\ + & {\delimit} &{\nonterminal{Double}} \\ + & {\delimit} &{\terminal{?}} \\ + & {\delimit} &{\terminal{(}} {\nonterminal{Exp}} {\terminal{)}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{FieldType}} & {\arrow} &{\nonterminal{Ident}} {\terminal{:}} {\nonterminal{Exp}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListFieldType}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{FieldType}} \\ + & {\delimit} &{\nonterminal{FieldType}} {\terminal{;}} {\nonterminal{ListFieldType}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{FieldValue}} & {\arrow} &{\nonterminal{Ident}} {\terminal{{$=$}}} {\nonterminal{Exp}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListFieldValue}} & {\arrow} &{\emptyP} \\ + & {\delimit} &{\nonterminal{FieldValue}} \\ + & {\delimit} &{\nonterminal{FieldValue}} {\terminal{;}} {\nonterminal{ListFieldValue}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{Exp2}} & {\arrow} &{\nonterminal{Exp3}} \\ +\end{tabular}\\ + +\begin{tabular}{lll} +{\nonterminal{ListExp}} & {\arrow} &{\nonterminal{Exp}} \\ + & {\delimit} &{\nonterminal{Exp}} {\terminal{,}} {\nonterminal{ListExp}} \\ +\end{tabular}\\ + + + +\end{document} + diff --git a/src/Transfer/Syntax/Layout.hs b/src/Transfer/Syntax/Layout.hs new file mode 100644 index 000000000..de5c99870 --- /dev/null +++ b/src/Transfer/Syntax/Layout.hs @@ -0,0 +1,227 @@ +module Transfer.Syntax.Layout where + +import Transfer.Syntax.Lex + + +import Data.Maybe (isNothing, fromJust) + +-- Generated by the BNF Converter + +-- local parameters + +topLayout = True +layoutWords = ["let","where","of","rec","sig","do"] +layoutStopWords = ["in"] + +-- layout separators + +layoutOpen = "{" +layoutClose = "}" +layoutSep = ";" + +-- | Replace layout syntax with explicit layout tokens. +resolveLayout :: Bool -- ^ Whether to use top-level layout. + -> [Token] -> [Token] +resolveLayout tp = res Nothing [if tl then Implicit 1 else Explicit] + where + -- Do top-level layout if the function parameter and the grammar say so. + tl = tp && topLayout + + res :: Maybe Token -- ^ The previous token, if any. + -> [Block] -- ^ A stack of layout blocks. + -> [Token] -> [Token] + + -- The stack should never be empty. + res _ [] ts = error $ "Layout error: stack empty. Tokens: " ++ show ts + + res _ st (t0:ts) + -- We found an open brace in the input, + -- put an explicit layout block on the stack. + -- This is done even if there was no layout word, + -- to keep opening and closing braces. + | isLayoutOpen t0 = moveAlong (Explicit:st) [t0] ts + + res _ st (t0:ts) + -- Start a new layout block if the first token is a layout word + | isLayout t0 = + case ts of + -- Explicit layout, just move on. The case above + -- will push an explicit layout block. + t1:_ | isLayoutOpen t1 -> moveAlong st [t0] ts + -- at end of file, the start column doesn't matter + _ -> let col = if null ts then column t0 else column (head ts) + -- insert an open brace after the layout word + b:ts' = addToken (nextPos t0) layoutOpen ts + -- save the start column + st' = Implicit col:st + in moveAlong st' [t0,b] ts' + + -- If we encounter a closing brace, exit the first explicit layout block. + | isLayoutClose t0 = + let st' = drop 1 (dropWhile isImplicit st) + in if null st' + then error $ "Layout error: Found " ++ layoutClose ++ " at (" + ++ show (line t0) ++ "," ++ show (column t0) + ++ ") without an explicit layout block." + else moveAlong st' [t0] ts + + -- We are in an implicit layout block + res pt st@(Implicit n:ns) (t0:ts) + + -- End of implicit block by a layout stop word + | isStop t0 = + -- Exit the current block and all implicit blocks + -- more indented than the current token + let (ebs,ns') = span (`moreIndent` column t0) ns + moreIndent (Implicit x) y = x > y + moreIndent Explicit _ = False + -- the number of blocks exited + b = 1 + length ebs + bs = replicate b layoutClose + -- Insert closing braces after the previous token. + (ts1,ts2) = splitAt (1+b) $ addTokens (afterPrev pt) bs (t0:ts) + in moveAlong ns' ts1 ts2 + + -- End of an implicit layout block + | newLine && column t0 < n = + -- Insert a closing brace after the previous token. + let b:t0':ts' = addToken (afterPrev pt) layoutClose (t0:ts) + -- Repeat, with the current block removed from the stack + in moveAlong ns [b] (t0':ts') + + -- Encounted a new line in an implicit layout block. + | newLine && column t0 == n = + -- Insert a semicolon after the previous token. + -- unless we are the beginning of the file, + -- or the previous token is a semicolon or open brace. + if isNothing pt || isTokenIn [layoutSep,layoutOpen] (fromJust pt) + then moveAlong st [t0] ts + else let b:t0':ts' = addToken (afterPrev pt) layoutSep (t0:ts) + in moveAlong st [b,t0'] ts' + where newLine = case pt of + Nothing -> True + Just t -> line t /= line t0 + + -- Nothing to see here, move along. + res _ st (t:ts) = moveAlong st [t] ts + + -- At EOF: skip explicit blocks. + res (Just t) (Explicit:bs) [] | null bs = [] + | otherwise = res (Just t) bs [] + + -- If we are using top-level layout, insert a semicolon after + -- the last token, if there isn't one already + res (Just t) [Implicit n] [] + | isTokenIn [layoutSep] t = [] + | otherwise = addToken (nextPos t) layoutSep [] + + -- At EOF in an implicit, non-top-level block: close the block + res (Just t) (Implicit n:bs) [] = + let c = addToken (nextPos t) layoutClose [] + in moveAlong bs c [] + + -- This should only happen if the input is empty. + res Nothing st [] = [] + + -- | Move on to the next token. + moveAlong :: [Block] -- ^ The layout stack. + -> [Token] -- ^ Any tokens just processed. + -> [Token] -- ^ the rest of the tokens. + -> [Token] + moveAlong st [] ts = error $ "Layout error: moveAlong got [] as old tokens" + moveAlong st ot ts = ot ++ res (Just $ last ot) st ts + +data Block = Implicit Int -- ^ An implicit layout block with its start column. + | Explicit + deriving Show + +type Position = Posn + +-- | Check if s block is implicit. +isImplicit :: Block -> Bool +isImplicit (Implicit _) = True +isImplicit _ = False + +-- | Insert a number of tokens at the begninning of a list of tokens. +addTokens :: Position -- ^ Position of the first new token. + -> [String] -- ^ Token symbols. + -> [Token] -- ^ The rest of the tokens. These will have their + -- positions updated to make room for the new tokens . + -> [Token] +addTokens p ss ts = foldr (addToken p) ts ss + +-- | Insert a new symbol token at the begninning of a list of tokens. +addToken :: Position -- ^ Position of the new token. + -> String -- ^ Symbol in the new token. + -> [Token] -- ^ The rest of the tokens. These will have their + -- positions updated to make room for the new token. + -> [Token] +addToken p s ts = sToken p s : map (incrGlobal p (length s)) ts + +-- | Get the position immediately to the right of the given token. +-- If no token is given, gets the first position in the file. +afterPrev :: Maybe Token -> Position +afterPrev = maybe (Pn 0 1 1) nextPos + +-- | Get the position immediately to the right of the given token. +nextPos :: Token -> Position +nextPos t = Pn (g + s) l (c + s + 1) + where Pn g l c = position t + s = tokenLength t + +-- | Add to the global and column positions of a token. +-- The column position is only changed if the token is on +-- the same line as the given position. +incrGlobal :: Position -- ^ If the token is on the same line + -- as this position, update the column position. + -> Int -- ^ Number of characters to add to the position. + -> Token -> Token +incrGlobal (Pn _ l0 _) i (PT (Pn g l c) t) = + if l /= l0 then PT (Pn (g + i) l c) t + else PT (Pn (g + i) l (c + i)) t +incrGlobal _ _ p = error $ "cannot add token at " ++ show p + +-- | Create a symbol token. +sToken :: Position -> String -> Token +sToken p s = PT p (TS s) -- reserved word or symbol + +-- | Get the position of a token. +position :: Token -> Position +position t = case t of + PT p _ -> p + Err p -> p + +-- | Get the line number of a token. +line :: Token -> Int +line t = case position t of Pn _ l _ -> l + +-- | Get the column number of a token. +column :: Token -> Int +column t = case position t of Pn _ _ c -> c + +-- | Check if a token is one of the given symbols. +isTokenIn :: [String] -> Token -> Bool +isTokenIn ts t = case t of + PT _ (TS r) | elem r ts -> True + _ -> False + +-- | Check if a word is a layout start token. +isLayout :: Token -> Bool +isLayout = isTokenIn layoutWords + +-- | Check if a token is a layout stop token. +isStop :: Token -> Bool +isStop = isTokenIn layoutStopWords + +-- | Check if a token is the layout open token. +isLayoutOpen :: Token -> Bool +isLayoutOpen = isTokenIn [layoutOpen] + +-- | Check if a token is the layout close token. +isLayoutClose :: Token -> Bool +isLayoutClose = isTokenIn [layoutClose] + +-- | Get the number of characters in the token. +tokenLength :: Token -> Int +tokenLength t = length $ prToken t + diff --git a/src/Transfer/Syntax/Lex.hs b/src/Transfer/Syntax/Lex.hs new file mode 100644 index 000000000..83c9e1a12 --- /dev/null +++ b/src/Transfer/Syntax/Lex.hs @@ -0,0 +1,337 @@ +{-# OPTIONS -fglasgow-exts -cpp #-} +{-# LINE 3 "Transfer/Syntax/Lex.x" #-} +{-# OPTIONS -fno-warn-incomplete-patterns #-} +module Transfer.Syntax.Lex where + + + +#if __GLASGOW_HASKELL__ >= 603 +#include "ghcconfig.h" +#else +#include "config.h" +#endif +#if __GLASGOW_HASKELL__ >= 503 +import Data.Array +import Data.Char (ord) +import Data.Array.Base (unsafeAt) +#else +import Array +import Char (ord) +#endif +#if __GLASGOW_HASKELL__ >= 503 +import GHC.Exts +#else +import GlaExts +#endif +alex_base :: AlexAddr +alex_base = AlexA# "\x01\x00\x00\x00\x15\x00\x00\x00\x39\x00\x00\x00\x3a\x00\x00\x00\x18\x00\x00\x00\x19\x00\x00\x00\x1a\x00\x00\x00\x00\x00\x00\x00\x44\x00\x00\x00\x45\x00\x00\x00\x1b\x00\x00\x00\x1c\x00\x00\x00\x1d\x00\x00\x00\x42\x00\x00\x00\x00\x00\x00\x00\xd4\xff\xff\xff\x17\x00\x00\x00\x26\x00\x00\x00\x1e\x00\x00\x00\x27\x00\x00\x00\x29\x00\x00\x00\x2a\x00\x00\x00\x2c\x00\x00\x00\x9c\x00\x00\x00\x00\x00\x00\x00\x17\x01\x00\x00\xd5\x00\x00\x00\xf2\x00\x00\x00\x6c\x01\x00\x00\x1a\x01\x00\x00\x76\x01\x00\x00\x80\x01\x00\x00\x8d\x01\x00\x00"# + +alex_table :: AlexAddr +alex_table = AlexA# 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+ +alex_check :: AlexAddr +alex_check = AlexA# 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f\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"# + +alex_deflt :: AlexAddr +alex_deflt = AlexA# "\x17\x00\xff\xff\x02\x00\x02\x00\xff\xff\xff\xff\x0a\x00\xff\xff\x0a\x00\x0a\x00\x0a\x00\x0a\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x19\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"# + +alex_accept = listArray (0::Int,32) [[],[],[(AlexAccSkip)],[(AlexAccSkip)],[],[(AlexAcc (alex_action_3))],[(AlexAccSkip)],[(AlexAccSkip)],[],[],[],[],[(AlexAcc (alex_action_3))],[(AlexAccSkip)],[(AlexAcc (alex_action_3))],[(AlexAcc (alex_action_3))],[(AlexAcc (alex_action_3))],[(AlexAcc (alex_action_3))],[(AlexAcc (alex_action_3))],[(AlexAcc (alex_action_3))],[(AlexAcc (alex_action_3))],[(AlexAcc (alex_action_3))],[],[(AlexAcc (alex_action_4))],[(AlexAcc (alex_action_5))],[],[],[(AlexAcc (alex_action_6))],[(AlexAcc (alex_action_7))],[(AlexAcc (alex_action_7))],[],[],[]] +{-# LINE 34 "Transfer/Syntax/Lex.x" #-} + +tok f p s = f p s + +share :: String -> String +share = id + +data Tok = + TS !String -- reserved words and symbols + | TL !String -- string literals + | TI !String -- integer literals + | TV !String -- identifiers + | TD !String -- double precision float literals + | TC !String -- character literals + + deriving (Eq,Show,Ord) + +data Token = + PT Posn Tok + | Err Posn + deriving (Eq,Show,Ord) + +tokenPos (PT (Pn _ l _) _ :_) = "line " ++ show l +tokenPos (Err (Pn _ l _) :_) = "line " ++ show l +tokenPos _ = "end of file" + +posLineCol (Pn _ l c) = (l,c) +mkPosToken t@(PT p _) = (posLineCol p, prToken t) + +prToken t = case t of + PT _ (TS s) -> s + PT _ (TI s) -> s + PT _ (TV s) -> s + PT _ (TD s) -> s + PT _ (TC s) -> s + + _ -> show t + +data BTree = N | B String Tok BTree BTree deriving (Show) + +eitherResIdent :: (String -> Tok) -> String -> Tok +eitherResIdent tv s = treeFind resWords + where + treeFind N = tv s + treeFind (B a t left right) | s < a = treeFind left + | s > a = treeFind right + | s == a = t + +resWords = b "import" (b "derive" (b "case" (b "Type" N N) (b "data" N N)) (b "else" (b "do" N N) (b "if" N N))) (b "rec" (b "let" (b "in" N N) (b "of" N N)) (b "then" (b "sig" N N) (b "where" N N))) + where b s = B s (TS s) + +unescapeInitTail :: String -> String +unescapeInitTail = unesc . tail where + unesc s = case s of + '\\':c:cs | elem c ['\"', '\\', '\''] -> c : unesc cs + '\\':'n':cs -> '\n' : unesc cs + '\\':'t':cs -> '\t' : unesc cs + '"':[] -> [] + c:cs -> c : unesc cs + _ -> [] + +------------------------------------------------------------------- +-- Alex wrapper code. +-- A modified "posn" wrapper. +------------------------------------------------------------------- + +data Posn = Pn !Int !Int !Int + deriving (Eq, Show,Ord) + +alexStartPos :: Posn +alexStartPos = Pn 0 1 1 + +alexMove :: Posn -> Char -> Posn +alexMove (Pn a l c) '\t' = Pn (a+1) l (((c+7) `div` 8)*8+1) +alexMove (Pn a l c) '\n' = Pn (a+1) (l+1) 1 +alexMove (Pn a l c) _ = Pn (a+1) l (c+1) + +type AlexInput = (Posn, -- current position, + Char, -- previous char + String) -- current input string + +tokens :: String -> [Token] +tokens str = go (alexStartPos, '\n', str) + where + go :: (Posn, Char, String) -> [Token] + go inp@(pos, _, str) = + case alexScan inp 0 of + AlexEOF -> [] + AlexError (pos, _, _) -> fail $ show pos ++ ": lexical error" + AlexSkip inp' len -> go inp' + AlexToken inp' len act -> act pos (take len str) : (go inp') + +alexGetChar :: AlexInput -> Maybe (Char,AlexInput) +alexGetChar (p, c, []) = Nothing +alexGetChar (p, _, (c:s)) = + let p' = alexMove p c + in p' `seq` Just (c, (p', c, s)) + +alexInputPrevChar :: AlexInput -> Char +alexInputPrevChar (p, c, s) = c + +alex_action_3 = tok (\p s -> PT p (TS $ share s)) +alex_action_4 = tok (\p s -> PT p (eitherResIdent (TV . share) s)) +alex_action_5 = tok (\p s -> PT p (TL $ share $ unescapeInitTail s)) +alex_action_6 = tok (\p s -> PT p (TI $ share s)) +alex_action_7 = tok (\p s -> PT p (TD $ share s)) +{-# LINE 1 "GenericTemplate.hs" #-} +{-# LINE 1 "<built-in>" #-} +{-# LINE 1 "<command line>" #-} +{-# LINE 1 "GenericTemplate.hs" #-} +-- ----------------------------------------------------------------------------- +-- ALEX TEMPLATE +-- +-- This code is in the PUBLIC DOMAIN; you may copy it freely and use +-- it for any purpose whatsoever. + +-- ----------------------------------------------------------------------------- +-- INTERNALS and main scanner engine + +{-# LINE 35 "GenericTemplate.hs" #-} + +{-# LINE 45 "GenericTemplate.hs" #-} + + +data AlexAddr = AlexA# Addr# + +#if __GLASGOW_HASKELL__ < 503 +uncheckedShiftL# = shiftL# +#endif + +{-# INLINE alexIndexInt16OffAddr #-} +alexIndexInt16OffAddr (AlexA# arr) off = +#ifdef WORDS_BIGENDIAN + narrow16Int# i + where + i = word2Int# ((high `uncheckedShiftL#` 8#) `or#` low) + high = int2Word# (ord# (indexCharOffAddr# arr (off' +# 1#))) + low = int2Word# (ord# (indexCharOffAddr# arr off')) + off' = off *# 2# +#else + indexInt16OffAddr# arr off +#endif + + + + + +{-# INLINE alexIndexInt32OffAddr #-} +alexIndexInt32OffAddr (AlexA# arr) off = +#ifdef WORDS_BIGENDIAN + narrow32Int# i + where + i = word2Int# ((b3 `uncheckedShiftL#` 24#) `or#` + (b2 `uncheckedShiftL#` 16#) `or#` + (b1 `uncheckedShiftL#` 8#) `or#` b0) + b3 = int2Word# (ord# (indexCharOffAddr# arr (off' +# 3#))) + b2 = int2Word# (ord# (indexCharOffAddr# arr (off' +# 2#))) + b1 = int2Word# (ord# (indexCharOffAddr# arr (off' +# 1#))) + b0 = int2Word# (ord# (indexCharOffAddr# arr off')) + off' = off *# 4# +#else + indexInt32OffAddr# arr off +#endif + + + + + +#if __GLASGOW_HASKELL__ < 503 +quickIndex arr i = arr ! i +#else +-- GHC >= 503, unsafeAt is available from Data.Array.Base. +quickIndex = unsafeAt +#endif + + + + +-- ----------------------------------------------------------------------------- +-- Main lexing routines + +data AlexReturn a + = AlexEOF + | AlexError !AlexInput + | AlexSkip !AlexInput !Int + | AlexToken !AlexInput !Int a + +-- alexScan :: AlexInput -> StartCode -> Maybe (AlexInput,Int,act) +alexScan input (I# (sc)) + = alexScanUser undefined input (I# (sc)) + +alexScanUser user input (I# (sc)) + = case alex_scan_tkn user input 0# input sc AlexNone of + (AlexNone, input') -> + case alexGetChar input of + Nothing -> + + + + AlexEOF + Just _ -> + + + + AlexError input' + + (AlexLastSkip input len, _) -> + + + + AlexSkip input len + + (AlexLastAcc k input len, _) -> + + + + AlexToken input len k + + +-- Push the input through the DFA, remembering the most recent accepting +-- state it encountered. + +alex_scan_tkn user orig_input len input s last_acc = + input `seq` -- strict in the input + case s of + -1# -> (last_acc, input) + _ -> alex_scan_tkn' user orig_input len input s last_acc + +alex_scan_tkn' user orig_input len input s last_acc = + let + new_acc = check_accs (alex_accept `quickIndex` (I# (s))) + in + new_acc `seq` + case alexGetChar input of + Nothing -> (new_acc, input) + Just (c, new_input) -> + + + + let + base = alexIndexInt32OffAddr alex_base s + (I# (ord_c)) = ord c + offset = (base +# ord_c) + check = alexIndexInt16OffAddr alex_check offset + + new_s = if (offset >=# 0#) && (check ==# ord_c) + then alexIndexInt16OffAddr alex_table offset + else alexIndexInt16OffAddr alex_deflt s + in + alex_scan_tkn user orig_input (len +# 1#) new_input new_s new_acc + + where + check_accs [] = last_acc + check_accs (AlexAcc a : _) = AlexLastAcc a input (I# (len)) + check_accs (AlexAccSkip : _) = AlexLastSkip input (I# (len)) + check_accs (AlexAccPred a pred : rest) + | pred user orig_input (I# (len)) input + = AlexLastAcc a input (I# (len)) + check_accs (AlexAccSkipPred pred : rest) + | pred user orig_input (I# (len)) input + = AlexLastSkip input (I# (len)) + check_accs (_ : rest) = check_accs rest + +data AlexLastAcc a + = AlexNone + | AlexLastAcc a !AlexInput !Int + | AlexLastSkip !AlexInput !Int + +data AlexAcc a user + = AlexAcc a + | AlexAccSkip + | AlexAccPred a (AlexAccPred user) + | AlexAccSkipPred (AlexAccPred user) + +type AlexAccPred user = user -> AlexInput -> Int -> AlexInput -> Bool + +-- ----------------------------------------------------------------------------- +-- Predicates on a rule + +alexAndPred p1 p2 user in1 len in2 + = p1 user in1 len in2 && p2 user in1 len in2 + +--alexPrevCharIsPred :: Char -> AlexAccPred _ +alexPrevCharIs c _ input _ _ = c == alexInputPrevChar input + +--alexPrevCharIsOneOfPred :: Array Char Bool -> AlexAccPred _ +alexPrevCharIsOneOf arr _ input _ _ = arr ! alexInputPrevChar input + +--alexRightContext :: Int -> AlexAccPred _ +alexRightContext (I# (sc)) user _ _ input = + case alex_scan_tkn user input 0# input sc AlexNone of + (AlexNone, _) -> False + _ -> True + -- TODO: there's no need to find the longest + -- match when checking the right context, just + -- the first match will do. + +-- used by wrappers +iUnbox (I# (i)) = i diff --git a/src/Transfer/Syntax/Lex.x b/src/Transfer/Syntax/Lex.x new file mode 100644 index 000000000..107b67345 --- /dev/null +++ b/src/Transfer/Syntax/Lex.x @@ -0,0 +1,134 @@ +-- -*- haskell -*- +-- This Alex file was machine-generated by the BNF converter +{ +{-# OPTIONS -fno-warn-incomplete-patterns #-} +module Transfer.Syntax.Lex where + + +} + + +$l = [a-zA-Z\192 - \255] # [\215 \247] -- isolatin1 letter FIXME +$c = [A-Z\192-\221] # [\215] -- capital isolatin1 letter FIXME +$s = [a-z\222-\255] # [\247] -- small isolatin1 letter FIXME +$d = [0-9] -- digit +$i = [$l $d _ '] -- identifier character +$u = [\0-\255] -- universal: any character + +@rsyms = -- symbols and non-identifier-like reserved words + \; | \: | \{ | \} | \= | \| | \| \| | \: \: | \( | \) | \[ | \] | \, | \_ | \- \> | \\ | \< \- | \> \> \= | \> \> | \& \& | \= \= | \/ \= | \< | \< \= | \> | \> \= | \+ | \- | \* | \/ | \% | \. | \? + +:- +"--" [.]* ; -- Toss single line comments +"{-" ([$u # \-] | \- [$u # \}])* ("-")+ "}" ; + +$white+ ; +@rsyms { tok (\p s -> PT p (TS $ share s)) } + +$l $i* { tok (\p s -> PT p (eitherResIdent (TV . share) s)) } +\" ([$u # [\" \\ \n]] | (\\ (\" | \\ | \' | n | t)))* \"{ tok (\p s -> PT p (TL $ share $ unescapeInitTail s)) } + +$d+ { tok (\p s -> PT p (TI $ share s)) } +$d+ \. $d+ (e (\-)? $d+)? { tok (\p s -> PT p (TD $ share s)) } + +{ + +tok f p s = f p s + +share :: String -> String +share = id + +data Tok = + TS !String -- reserved words and symbols + | TL !String -- string literals + | TI !String -- integer literals + | TV !String -- identifiers + | TD !String -- double precision float literals + | TC !String -- character literals + + deriving (Eq,Show,Ord) + +data Token = + PT Posn Tok + | Err Posn + deriving (Eq,Show,Ord) + +tokenPos (PT (Pn _ l _) _ :_) = "line " ++ show l +tokenPos (Err (Pn _ l _) :_) = "line " ++ show l +tokenPos _ = "end of file" + +posLineCol (Pn _ l c) = (l,c) +mkPosToken t@(PT p _) = (posLineCol p, prToken t) + +prToken t = case t of + PT _ (TS s) -> s + PT _ (TI s) -> s + PT _ (TV s) -> s + PT _ (TD s) -> s + PT _ (TC s) -> s + + _ -> show t + +data BTree = N | B String Tok BTree BTree deriving (Show) + +eitherResIdent :: (String -> Tok) -> String -> Tok +eitherResIdent tv s = treeFind resWords + where + treeFind N = tv s + treeFind (B a t left right) | s < a = treeFind left + | s > a = treeFind right + | s == a = t + +resWords = b "import" (b "derive" (b "case" (b "Type" N N) (b "data" N N)) (b "else" (b "do" N N) (b "if" N N))) (b "rec" (b "let" (b "in" N N) (b "of" N N)) (b "then" (b "sig" N N) (b "where" N N))) + where b s = B s (TS s) + +unescapeInitTail :: String -> String +unescapeInitTail = unesc . tail where + unesc s = case s of + '\\':c:cs | elem c ['\"', '\\', '\''] -> c : unesc cs + '\\':'n':cs -> '\n' : unesc cs + '\\':'t':cs -> '\t' : unesc cs + '"':[] -> [] + c:cs -> c : unesc cs + _ -> [] + +------------------------------------------------------------------- +-- Alex wrapper code. +-- A modified "posn" wrapper. +------------------------------------------------------------------- + +data Posn = Pn !Int !Int !Int + deriving (Eq, Show,Ord) + +alexStartPos :: Posn +alexStartPos = Pn 0 1 1 + +alexMove :: Posn -> Char -> Posn +alexMove (Pn a l c) '\t' = Pn (a+1) l (((c+7) `div` 8)*8+1) +alexMove (Pn a l c) '\n' = Pn (a+1) (l+1) 1 +alexMove (Pn a l c) _ = Pn (a+1) l (c+1) + +type AlexInput = (Posn, -- current position, + Char, -- previous char + String) -- current input string + +tokens :: String -> [Token] +tokens str = go (alexStartPos, '\n', str) + where + go :: (Posn, Char, String) -> [Token] + go inp@(pos, _, str) = + case alexScan inp 0 of + AlexEOF -> [] + AlexError (pos, _, _) -> fail $ show pos ++ ": lexical error" + AlexSkip inp' len -> go inp' + AlexToken inp' len act -> act pos (take len str) : (go inp') + +alexGetChar :: AlexInput -> Maybe (Char,AlexInput) +alexGetChar (p, c, []) = Nothing +alexGetChar (p, _, (c:s)) = + let p' = alexMove p c + in p' `seq` Just (c, (p', c, s)) + +alexInputPrevChar :: AlexInput -> Char +alexInputPrevChar (p, c, s) = c +} diff --git a/src/Transfer/Syntax/Par.hs b/src/Transfer/Syntax/Par.hs new file mode 100644 index 000000000..bd83f0a87 --- /dev/null +++ b/src/Transfer/Syntax/Par.hs @@ -0,0 +1,1822 @@ +{-# OPTIONS -fglasgow-exts -cpp #-} +{-# OPTIONS -fno-warn-incomplete-patterns -fno-warn-overlapping-patterns #-} +module Transfer.Syntax.Par where +import Transfer.Syntax.Abs +import Transfer.Syntax.Lex +import Transfer.ErrM +import Array +#if __GLASGOW_HASKELL__ >= 503 +import GHC.Exts +#else +import GlaExts +#endif + +-- parser produced by Happy Version 1.15 + +newtype HappyAbsSyn = HappyAbsSyn (() -> ()) +happyIn5 :: (Ident) -> (HappyAbsSyn ) +happyIn5 x = unsafeCoerce# x +{-# INLINE happyIn5 #-} +happyOut5 :: (HappyAbsSyn ) -> (Ident) +happyOut5 x = unsafeCoerce# x +{-# INLINE happyOut5 #-} +happyIn6 :: (String) -> (HappyAbsSyn ) +happyIn6 x = unsafeCoerce# x +{-# INLINE happyIn6 #-} +happyOut6 :: (HappyAbsSyn ) -> (String) +happyOut6 x = unsafeCoerce# x +{-# INLINE happyOut6 #-} +happyIn7 :: (Integer) -> (HappyAbsSyn ) +happyIn7 x = unsafeCoerce# x +{-# INLINE happyIn7 #-} +happyOut7 :: (HappyAbsSyn ) -> (Integer) +happyOut7 x = unsafeCoerce# x +{-# INLINE happyOut7 #-} +happyIn8 :: (Double) -> (HappyAbsSyn ) +happyIn8 x = unsafeCoerce# x +{-# INLINE happyIn8 #-} +happyOut8 :: (HappyAbsSyn ) -> (Double) +happyOut8 x = unsafeCoerce# x +{-# INLINE happyOut8 #-} +happyIn9 :: (Module) -> (HappyAbsSyn ) +happyIn9 x = unsafeCoerce# x +{-# INLINE happyIn9 #-} +happyOut9 :: (HappyAbsSyn ) -> (Module) +happyOut9 x = unsafeCoerce# x +{-# INLINE happyOut9 #-} +happyIn10 :: (Import) -> (HappyAbsSyn ) +happyIn10 x = unsafeCoerce# x +{-# INLINE happyIn10 #-} +happyOut10 :: (HappyAbsSyn ) -> (Import) +happyOut10 x = unsafeCoerce# x +{-# INLINE happyOut10 #-} +happyIn11 :: ([Import]) -> (HappyAbsSyn ) +happyIn11 x = unsafeCoerce# x +{-# INLINE happyIn11 #-} +happyOut11 :: (HappyAbsSyn ) -> ([Import]) +happyOut11 x = unsafeCoerce# x +{-# INLINE happyOut11 #-} +happyIn12 :: (Decl) -> (HappyAbsSyn ) +happyIn12 x = unsafeCoerce# x +{-# INLINE happyIn12 #-} +happyOut12 :: (HappyAbsSyn ) -> (Decl) +happyOut12 x = unsafeCoerce# x +{-# INLINE happyOut12 #-} +happyIn13 :: ([Decl]) -> (HappyAbsSyn ) +happyIn13 x = unsafeCoerce# x +{-# INLINE happyIn13 #-} +happyOut13 :: (HappyAbsSyn ) -> ([Decl]) +happyOut13 x = unsafeCoerce# x +{-# INLINE happyOut13 #-} +happyIn14 :: (ConsDecl) -> (HappyAbsSyn ) +happyIn14 x = unsafeCoerce# x +{-# INLINE happyIn14 #-} +happyOut14 :: (HappyAbsSyn ) -> (ConsDecl) +happyOut14 x = unsafeCoerce# x +{-# INLINE happyOut14 #-} +happyIn15 :: ([ConsDecl]) -> (HappyAbsSyn ) +happyIn15 x = unsafeCoerce# x +{-# INLINE happyIn15 #-} +happyOut15 :: (HappyAbsSyn ) -> ([ConsDecl]) +happyOut15 x = unsafeCoerce# x +{-# INLINE happyOut15 #-} +happyIn16 :: (Guard) -> (HappyAbsSyn ) +happyIn16 x = unsafeCoerce# x +{-# INLINE happyIn16 #-} +happyOut16 :: (HappyAbsSyn ) -> (Guard) +happyOut16 x = unsafeCoerce# x +{-# INLINE happyOut16 #-} +happyIn17 :: (Pattern) -> (HappyAbsSyn ) +happyIn17 x = unsafeCoerce# x +{-# INLINE happyIn17 #-} +happyOut17 :: (HappyAbsSyn ) -> (Pattern) +happyOut17 x = unsafeCoerce# x +{-# INLINE happyOut17 #-} +happyIn18 :: (Pattern) -> (HappyAbsSyn ) +happyIn18 x = unsafeCoerce# x +{-# INLINE happyIn18 #-} +happyOut18 :: (HappyAbsSyn ) -> (Pattern) +happyOut18 x = unsafeCoerce# x +{-# INLINE happyOut18 #-} +happyIn19 :: (Pattern) -> (HappyAbsSyn ) +happyIn19 x = unsafeCoerce# x +{-# INLINE happyIn19 #-} +happyOut19 :: (HappyAbsSyn ) -> (Pattern) +happyOut19 x = unsafeCoerce# x +{-# INLINE happyOut19 #-} +happyIn20 :: (Pattern) -> (HappyAbsSyn ) +happyIn20 x = unsafeCoerce# x +{-# INLINE happyIn20 #-} +happyOut20 :: (HappyAbsSyn ) -> (Pattern) +happyOut20 x = unsafeCoerce# x +{-# INLINE happyOut20 #-} +happyIn21 :: (CommaPattern) -> (HappyAbsSyn ) +happyIn21 x = unsafeCoerce# x +{-# INLINE happyIn21 #-} +happyOut21 :: (HappyAbsSyn ) -> (CommaPattern) +happyOut21 x = unsafeCoerce# x +{-# INLINE happyOut21 #-} +happyIn22 :: ([CommaPattern]) -> (HappyAbsSyn ) +happyIn22 x = unsafeCoerce# x +{-# INLINE happyIn22 #-} +happyOut22 :: (HappyAbsSyn ) -> ([CommaPattern]) +happyOut22 x = unsafeCoerce# x +{-# INLINE happyOut22 #-} +happyIn23 :: ([Pattern]) -> (HappyAbsSyn ) +happyIn23 x = unsafeCoerce# x +{-# INLINE happyIn23 #-} +happyOut23 :: (HappyAbsSyn ) -> ([Pattern]) +happyOut23 x = unsafeCoerce# x +{-# INLINE happyOut23 #-} +happyIn24 :: (FieldPattern) -> (HappyAbsSyn ) +happyIn24 x = unsafeCoerce# x +{-# INLINE happyIn24 #-} +happyOut24 :: (HappyAbsSyn ) -> (FieldPattern) +happyOut24 x = unsafeCoerce# x +{-# INLINE happyOut24 #-} +happyIn25 :: ([FieldPattern]) -> (HappyAbsSyn ) +happyIn25 x = unsafeCoerce# x +{-# INLINE happyIn25 #-} +happyOut25 :: (HappyAbsSyn ) -> ([FieldPattern]) +happyOut25 x = unsafeCoerce# x +{-# INLINE happyOut25 #-} +happyIn26 :: (Exp) -> (HappyAbsSyn ) +happyIn26 x = unsafeCoerce# x +{-# INLINE happyIn26 #-} +happyOut26 :: (HappyAbsSyn ) -> (Exp) +happyOut26 x = unsafeCoerce# x +{-# INLINE happyOut26 #-} +happyIn27 :: (VarOrWild) -> (HappyAbsSyn ) +happyIn27 x = unsafeCoerce# x +{-# INLINE happyIn27 #-} +happyOut27 :: (HappyAbsSyn ) -> (VarOrWild) +happyOut27 x = unsafeCoerce# x +{-# INLINE happyOut27 #-} +happyIn28 :: (Exp) -> (HappyAbsSyn ) +happyIn28 x = unsafeCoerce# x +{-# INLINE happyIn28 #-} +happyOut28 :: (HappyAbsSyn ) -> (Exp) +happyOut28 x = unsafeCoerce# x +{-# INLINE happyOut28 #-} +happyIn29 :: (LetDef) -> (HappyAbsSyn ) +happyIn29 x = unsafeCoerce# x +{-# INLINE happyIn29 #-} +happyOut29 :: (HappyAbsSyn ) -> (LetDef) +happyOut29 x = unsafeCoerce# x +{-# INLINE happyOut29 #-} +happyIn30 :: ([LetDef]) -> (HappyAbsSyn ) +happyIn30 x = unsafeCoerce# x +{-# INLINE happyIn30 #-} +happyOut30 :: (HappyAbsSyn ) -> ([LetDef]) +happyOut30 x = unsafeCoerce# x +{-# INLINE happyOut30 #-} +happyIn31 :: (Case) -> (HappyAbsSyn ) +happyIn31 x = unsafeCoerce# x +{-# INLINE happyIn31 #-} +happyOut31 :: (HappyAbsSyn ) -> (Case) +happyOut31 x = unsafeCoerce# x +{-# INLINE happyOut31 #-} +happyIn32 :: ([Case]) -> (HappyAbsSyn ) +happyIn32 x = unsafeCoerce# x +{-# INLINE happyIn32 #-} +happyOut32 :: (HappyAbsSyn ) -> ([Case]) +happyOut32 x = unsafeCoerce# x +{-# INLINE happyOut32 #-} +happyIn33 :: (Bind) -> (HappyAbsSyn ) +happyIn33 x = unsafeCoerce# x +{-# INLINE happyIn33 #-} +happyOut33 :: (HappyAbsSyn ) -> (Bind) +happyOut33 x = unsafeCoerce# x +{-# INLINE happyOut33 #-} +happyIn34 :: ([Bind]) -> (HappyAbsSyn ) +happyIn34 x = unsafeCoerce# x +{-# INLINE happyIn34 #-} +happyOut34 :: (HappyAbsSyn ) -> ([Bind]) +happyOut34 x = unsafeCoerce# x +{-# INLINE happyOut34 #-} +happyIn35 :: (Exp) -> (HappyAbsSyn ) +happyIn35 x = unsafeCoerce# x +{-# INLINE happyIn35 #-} +happyOut35 :: (HappyAbsSyn ) -> (Exp) +happyOut35 x = unsafeCoerce# x +{-# INLINE happyOut35 #-} +happyIn36 :: (Exp) -> (HappyAbsSyn ) +happyIn36 x = unsafeCoerce# x +{-# INLINE happyIn36 #-} +happyOut36 :: (HappyAbsSyn ) -> (Exp) +happyOut36 x = unsafeCoerce# x +{-# INLINE happyOut36 #-} +happyIn37 :: (Exp) -> (HappyAbsSyn ) +happyIn37 x = unsafeCoerce# x +{-# INLINE happyIn37 #-} +happyOut37 :: (HappyAbsSyn ) -> (Exp) +happyOut37 x = unsafeCoerce# x +{-# INLINE happyOut37 #-} +happyIn38 :: (Exp) -> (HappyAbsSyn ) +happyIn38 x = unsafeCoerce# x +{-# INLINE happyIn38 #-} +happyOut38 :: (HappyAbsSyn ) -> (Exp) +happyOut38 x = unsafeCoerce# x +{-# INLINE happyOut38 #-} +happyIn39 :: (Exp) -> (HappyAbsSyn ) +happyIn39 x = unsafeCoerce# x +{-# INLINE happyIn39 #-} +happyOut39 :: (HappyAbsSyn ) -> (Exp) +happyOut39 x = unsafeCoerce# x +{-# INLINE happyOut39 #-} +happyIn40 :: (Exp) -> (HappyAbsSyn ) +happyIn40 x = unsafeCoerce# x +{-# INLINE happyIn40 #-} +happyOut40 :: (HappyAbsSyn ) -> (Exp) +happyOut40 x = unsafeCoerce# x +{-# INLINE happyOut40 #-} +happyIn41 :: (Exp) -> (HappyAbsSyn ) +happyIn41 x = unsafeCoerce# x +{-# INLINE happyIn41 #-} +happyOut41 :: (HappyAbsSyn ) -> (Exp) +happyOut41 x = unsafeCoerce# x +{-# INLINE happyOut41 #-} +happyIn42 :: (Exp) -> (HappyAbsSyn ) +happyIn42 x = unsafeCoerce# x +{-# INLINE happyIn42 #-} +happyOut42 :: (HappyAbsSyn ) -> (Exp) +happyOut42 x = unsafeCoerce# x +{-# INLINE happyOut42 #-} +happyIn43 :: (Exp) -> (HappyAbsSyn ) +happyIn43 x = unsafeCoerce# x +{-# INLINE happyIn43 #-} +happyOut43 :: (HappyAbsSyn ) -> (Exp) +happyOut43 x = unsafeCoerce# x +{-# INLINE happyOut43 #-} +happyIn44 :: (Exp) -> (HappyAbsSyn ) +happyIn44 x = unsafeCoerce# x +{-# INLINE happyIn44 #-} +happyOut44 :: (HappyAbsSyn ) -> (Exp) +happyOut44 x = unsafeCoerce# x +{-# INLINE happyOut44 #-} +happyIn45 :: (Exp) -> (HappyAbsSyn ) +happyIn45 x = unsafeCoerce# x +{-# INLINE happyIn45 #-} +happyOut45 :: (HappyAbsSyn ) -> (Exp) +happyOut45 x = unsafeCoerce# x +{-# INLINE happyOut45 #-} +happyIn46 :: (FieldType) -> (HappyAbsSyn ) +happyIn46 x = unsafeCoerce# x +{-# INLINE happyIn46 #-} +happyOut46 :: (HappyAbsSyn ) -> (FieldType) +happyOut46 x = unsafeCoerce# x +{-# INLINE happyOut46 #-} +happyIn47 :: ([FieldType]) -> (HappyAbsSyn ) +happyIn47 x = unsafeCoerce# x +{-# INLINE happyIn47 #-} +happyOut47 :: (HappyAbsSyn ) -> ([FieldType]) +happyOut47 x = unsafeCoerce# x +{-# INLINE happyOut47 #-} +happyIn48 :: (FieldValue) -> (HappyAbsSyn ) +happyIn48 x = unsafeCoerce# x +{-# INLINE happyIn48 #-} +happyOut48 :: (HappyAbsSyn ) -> (FieldValue) +happyOut48 x = unsafeCoerce# x +{-# INLINE happyOut48 #-} +happyIn49 :: ([FieldValue]) -> (HappyAbsSyn ) +happyIn49 x = unsafeCoerce# x +{-# INLINE happyIn49 #-} +happyOut49 :: (HappyAbsSyn ) -> ([FieldValue]) +happyOut49 x = unsafeCoerce# x +{-# INLINE happyOut49 #-} +happyIn50 :: (Exp) -> (HappyAbsSyn ) +happyIn50 x = unsafeCoerce# x +{-# INLINE happyIn50 #-} +happyOut50 :: (HappyAbsSyn ) -> (Exp) +happyOut50 x = unsafeCoerce# x +{-# INLINE happyOut50 #-} +happyIn51 :: ([Exp]) -> (HappyAbsSyn ) +happyIn51 x = unsafeCoerce# x +{-# INLINE happyIn51 #-} +happyOut51 :: (HappyAbsSyn ) -> ([Exp]) +happyOut51 x = unsafeCoerce# x +{-# INLINE happyOut51 #-} +happyInTok :: Token -> (HappyAbsSyn ) +happyInTok x = unsafeCoerce# x +{-# INLINE happyInTok #-} +happyOutTok :: (HappyAbsSyn ) -> Token +happyOutTok x = unsafeCoerce# x +{-# INLINE happyOutTok #-} + +happyActOffsets :: HappyAddr +happyActOffsets = HappyA# 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+ +happyGotoOffsets :: HappyAddr +happyGotoOffsets = HappyA# 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+ +happyDefActions :: HappyAddr +happyDefActions = HappyA# 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+ +happyCheck :: HappyAddr +happyCheck = HappyA# 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+ +happyTable :: HappyAddr +happyTable = HappyA# 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+ +happyReduceArr = array (2, 120) [ + (2 , happyReduce_2), + (3 , happyReduce_3), + (4 , happyReduce_4), + (5 , happyReduce_5), + (6 , happyReduce_6), + (7 , happyReduce_7), + (8 , happyReduce_8), + (9 , happyReduce_9), + (10 , happyReduce_10), + (11 , happyReduce_11), + (12 , happyReduce_12), + (13 , happyReduce_13), + (14 , happyReduce_14), + (15 , happyReduce_15), + (16 , happyReduce_16), + (17 , happyReduce_17), + (18 , happyReduce_18), + (19 , happyReduce_19), + (20 , happyReduce_20), + (21 , happyReduce_21), + (22 , happyReduce_22), + (23 , happyReduce_23), + (24 , happyReduce_24), + (25 , happyReduce_25), + (26 , happyReduce_26), + (27 , happyReduce_27), + (28 , happyReduce_28), + (29 , happyReduce_29), + (30 , happyReduce_30), + (31 , happyReduce_31), + (32 , happyReduce_32), + (33 , happyReduce_33), + (34 , happyReduce_34), + (35 , happyReduce_35), + (36 , happyReduce_36), + (37 , happyReduce_37), + (38 , happyReduce_38), + (39 , happyReduce_39), + (40 , happyReduce_40), + (41 , happyReduce_41), + (42 , happyReduce_42), + (43 , happyReduce_43), + (44 , happyReduce_44), + (45 , happyReduce_45), + (46 , happyReduce_46), + (47 , happyReduce_47), + (48 , happyReduce_48), + (49 , happyReduce_49), + (50 , happyReduce_50), + (51 , happyReduce_51), + (52 , happyReduce_52), + (53 , happyReduce_53), + (54 , happyReduce_54), + (55 , happyReduce_55), + (56 , happyReduce_56), + (57 , happyReduce_57), + (58 , happyReduce_58), + (59 , happyReduce_59), + (60 , happyReduce_60), + (61 , happyReduce_61), + (62 , happyReduce_62), + (63 , happyReduce_63), + (64 , happyReduce_64), + (65 , happyReduce_65), + (66 , happyReduce_66), + (67 , happyReduce_67), + (68 , happyReduce_68), + (69 , happyReduce_69), + (70 , happyReduce_70), + (71 , happyReduce_71), + (72 , happyReduce_72), + (73 , happyReduce_73), + (74 , happyReduce_74), + (75 , happyReduce_75), + (76 , happyReduce_76), + (77 , happyReduce_77), + (78 , happyReduce_78), + (79 , happyReduce_79), + (80 , happyReduce_80), + (81 , happyReduce_81), + (82 , happyReduce_82), + (83 , happyReduce_83), + (84 , happyReduce_84), + (85 , happyReduce_85), + (86 , happyReduce_86), + (87 , happyReduce_87), + (88 , happyReduce_88), + (89 , happyReduce_89), + (90 , happyReduce_90), + (91 , happyReduce_91), + (92 , happyReduce_92), + (93 , happyReduce_93), + (94 , happyReduce_94), + (95 , happyReduce_95), + (96 , happyReduce_96), + (97 , happyReduce_97), + (98 , happyReduce_98), + (99 , happyReduce_99), + (100 , happyReduce_100), + (101 , happyReduce_101), + (102 , happyReduce_102), + (103 , happyReduce_103), + (104 , happyReduce_104), + (105 , happyReduce_105), + (106 , happyReduce_106), + (107 , happyReduce_107), + (108 , happyReduce_108), + (109 , happyReduce_109), + (110 , happyReduce_110), + (111 , happyReduce_111), + (112 , happyReduce_112), + (113 , happyReduce_113), + (114 , happyReduce_114), + (115 , happyReduce_115), + (116 , happyReduce_116), + (117 , happyReduce_117), + (118 , happyReduce_118), + (119 , happyReduce_119), + (120 , happyReduce_120) + ] + +happy_n_terms = 55 :: Int +happy_n_nonterms = 47 :: Int + +happyReduce_2 = happySpecReduce_1 0# happyReduction_2 +happyReduction_2 happy_x_1 + = case happyOutTok happy_x_1 of { (PT _ (TV happy_var_1)) -> + happyIn5 + (Ident happy_var_1 + )} + +happyReduce_3 = happySpecReduce_1 1# happyReduction_3 +happyReduction_3 happy_x_1 + = case happyOutTok happy_x_1 of { (PT _ (TL happy_var_1)) -> + happyIn6 + (happy_var_1 + )} + +happyReduce_4 = happySpecReduce_1 2# happyReduction_4 +happyReduction_4 happy_x_1 + = case happyOutTok happy_x_1 of { (PT _ (TI happy_var_1)) -> + happyIn7 + ((read happy_var_1) :: Integer + )} + +happyReduce_5 = happySpecReduce_1 3# happyReduction_5 +happyReduction_5 happy_x_1 + = case happyOutTok happy_x_1 of { (PT _ (TD happy_var_1)) -> + happyIn8 + ((read happy_var_1) :: Double + )} + +happyReduce_6 = happySpecReduce_2 4# happyReduction_6 +happyReduction_6 happy_x_2 + happy_x_1 + = case happyOut11 happy_x_1 of { happy_var_1 -> + case happyOut13 happy_x_2 of { happy_var_2 -> + happyIn9 + (Module (reverse happy_var_1) (reverse happy_var_2) + )}} + +happyReduce_7 = happySpecReduce_2 5# happyReduction_7 +happyReduction_7 happy_x_2 + happy_x_1 + = case happyOut5 happy_x_2 of { happy_var_2 -> + happyIn10 + (Import happy_var_2 + )} + +happyReduce_8 = happySpecReduce_0 6# happyReduction_8 +happyReduction_8 = happyIn11 + ([] + ) + +happyReduce_9 = happySpecReduce_3 6# happyReduction_9 +happyReduction_9 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut11 happy_x_1 of { happy_var_1 -> + case happyOut10 happy_x_2 of { happy_var_2 -> + happyIn11 + (flip (:) happy_var_1 happy_var_2 + )}} + +happyReduce_10 = happyReduce 8# 7# happyReduction_10 +happyReduction_10 (happy_x_8 `HappyStk` + happy_x_7 `HappyStk` + happy_x_6 `HappyStk` + happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut5 happy_x_2 of { happy_var_2 -> + case happyOut26 happy_x_4 of { happy_var_4 -> + case happyOut15 happy_x_7 of { happy_var_7 -> + happyIn12 + (DataDecl happy_var_2 happy_var_4 happy_var_7 + ) `HappyStk` happyRest}}} + +happyReduce_11 = happySpecReduce_3 7# happyReduction_11 +happyReduction_11 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + case happyOut26 happy_x_3 of { happy_var_3 -> + happyIn12 + (TypeDecl happy_var_1 happy_var_3 + )}} + +happyReduce_12 = happyReduce 5# 7# happyReduction_12 +happyReduction_12 (happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut5 happy_x_1 of { happy_var_1 -> + case happyOut23 happy_x_2 of { happy_var_2 -> + case happyOut16 happy_x_3 of { happy_var_3 -> + case happyOut26 happy_x_5 of { happy_var_5 -> + happyIn12 + (ValueDecl happy_var_1 (reverse happy_var_2) happy_var_3 happy_var_5 + ) `HappyStk` happyRest}}}} + +happyReduce_13 = happySpecReduce_3 7# happyReduction_13 +happyReduction_13 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut5 happy_x_2 of { happy_var_2 -> + case happyOut5 happy_x_3 of { happy_var_3 -> + happyIn12 + (DeriveDecl happy_var_2 happy_var_3 + )}} + +happyReduce_14 = happySpecReduce_0 8# happyReduction_14 +happyReduction_14 = happyIn13 + ([] + ) + +happyReduce_15 = happySpecReduce_3 8# happyReduction_15 +happyReduction_15 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut13 happy_x_1 of { happy_var_1 -> + case happyOut12 happy_x_2 of { happy_var_2 -> + happyIn13 + (flip (:) happy_var_1 happy_var_2 + )}} + +happyReduce_16 = happySpecReduce_3 9# happyReduction_16 +happyReduction_16 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + case happyOut26 happy_x_3 of { happy_var_3 -> + happyIn14 + (ConsDecl happy_var_1 happy_var_3 + )}} + +happyReduce_17 = happySpecReduce_0 10# happyReduction_17 +happyReduction_17 = happyIn15 + ([] + ) + +happyReduce_18 = happySpecReduce_1 10# happyReduction_18 +happyReduction_18 happy_x_1 + = case happyOut14 happy_x_1 of { happy_var_1 -> + happyIn15 + ((:[]) happy_var_1 + )} + +happyReduce_19 = happySpecReduce_3 10# happyReduction_19 +happyReduction_19 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut14 happy_x_1 of { happy_var_1 -> + case happyOut15 happy_x_3 of { happy_var_3 -> + happyIn15 + ((:) happy_var_1 happy_var_3 + )}} + +happyReduce_20 = happySpecReduce_2 11# happyReduction_20 +happyReduction_20 happy_x_2 + happy_x_1 + = case happyOut28 happy_x_2 of { happy_var_2 -> + happyIn16 + (GuardExp happy_var_2 + )} + +happyReduce_21 = happySpecReduce_0 11# happyReduction_21 +happyReduction_21 = happyIn16 + (GuardNo + ) + +happyReduce_22 = happySpecReduce_3 12# happyReduction_22 +happyReduction_22 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut18 happy_x_1 of { happy_var_1 -> + case happyOut17 happy_x_3 of { happy_var_3 -> + happyIn17 + (POr happy_var_1 happy_var_3 + )}} + +happyReduce_23 = happySpecReduce_1 12# happyReduction_23 +happyReduction_23 happy_x_1 + = case happyOut18 happy_x_1 of { happy_var_1 -> + happyIn17 + (happy_var_1 + )} + +happyReduce_24 = happySpecReduce_3 13# happyReduction_24 +happyReduction_24 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut19 happy_x_1 of { happy_var_1 -> + case happyOut18 happy_x_3 of { happy_var_3 -> + happyIn18 + (PListCons happy_var_1 happy_var_3 + )}} + +happyReduce_25 = happySpecReduce_1 13# happyReduction_25 +happyReduction_25 happy_x_1 + = case happyOut19 happy_x_1 of { happy_var_1 -> + happyIn18 + (happy_var_1 + )} + +happyReduce_26 = happySpecReduce_3 14# happyReduction_26 +happyReduction_26 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + case happyOut20 happy_x_2 of { happy_var_2 -> + case happyOut23 happy_x_3 of { happy_var_3 -> + happyIn19 + (PConsTop happy_var_1 happy_var_2 (reverse happy_var_3) + )}}} + +happyReduce_27 = happySpecReduce_1 14# happyReduction_27 +happyReduction_27 happy_x_1 + = case happyOut20 happy_x_1 of { happy_var_1 -> + happyIn19 + (happy_var_1 + )} + +happyReduce_28 = happyReduce 4# 15# happyReduction_28 +happyReduction_28 (happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut25 happy_x_3 of { happy_var_3 -> + happyIn20 + (PRec happy_var_3 + ) `HappyStk` happyRest} + +happyReduce_29 = happySpecReduce_2 15# happyReduction_29 +happyReduction_29 happy_x_2 + happy_x_1 + = happyIn20 + (PEmptyList + ) + +happyReduce_30 = happySpecReduce_3 15# happyReduction_30 +happyReduction_30 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut22 happy_x_2 of { happy_var_2 -> + happyIn20 + (PList happy_var_2 + )} + +happyReduce_31 = happyReduce 5# 15# happyReduction_31 +happyReduction_31 (happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut21 happy_x_2 of { happy_var_2 -> + case happyOut22 happy_x_4 of { happy_var_4 -> + happyIn20 + (PTuple happy_var_2 happy_var_4 + ) `HappyStk` happyRest}} + +happyReduce_32 = happySpecReduce_1 15# happyReduction_32 +happyReduction_32 happy_x_1 + = case happyOut6 happy_x_1 of { happy_var_1 -> + happyIn20 + (PStr happy_var_1 + )} + +happyReduce_33 = happySpecReduce_1 15# happyReduction_33 +happyReduction_33 happy_x_1 + = case happyOut7 happy_x_1 of { happy_var_1 -> + happyIn20 + (PInt happy_var_1 + )} + +happyReduce_34 = happySpecReduce_1 15# happyReduction_34 +happyReduction_34 happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + happyIn20 + (PVar happy_var_1 + )} + +happyReduce_35 = happySpecReduce_1 15# happyReduction_35 +happyReduction_35 happy_x_1 + = happyIn20 + (PWild + ) + +happyReduce_36 = happySpecReduce_3 15# happyReduction_36 +happyReduction_36 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut17 happy_x_2 of { happy_var_2 -> + happyIn20 + (happy_var_2 + )} + +happyReduce_37 = happySpecReduce_1 16# happyReduction_37 +happyReduction_37 happy_x_1 + = case happyOut17 happy_x_1 of { happy_var_1 -> + happyIn21 + (CommaPattern happy_var_1 + )} + +happyReduce_38 = happySpecReduce_1 17# happyReduction_38 +happyReduction_38 happy_x_1 + = case happyOut21 happy_x_1 of { happy_var_1 -> + happyIn22 + ((:[]) happy_var_1 + )} + +happyReduce_39 = happySpecReduce_3 17# happyReduction_39 +happyReduction_39 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut21 happy_x_1 of { happy_var_1 -> + case happyOut22 happy_x_3 of { happy_var_3 -> + happyIn22 + ((:) happy_var_1 happy_var_3 + )}} + +happyReduce_40 = happySpecReduce_0 18# happyReduction_40 +happyReduction_40 = happyIn23 + ([] + ) + +happyReduce_41 = happySpecReduce_2 18# happyReduction_41 +happyReduction_41 happy_x_2 + happy_x_1 + = case happyOut23 happy_x_1 of { happy_var_1 -> + case happyOut20 happy_x_2 of { happy_var_2 -> + happyIn23 + (flip (:) happy_var_1 happy_var_2 + )}} + +happyReduce_42 = happySpecReduce_3 19# happyReduction_42 +happyReduction_42 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + case happyOut17 happy_x_3 of { happy_var_3 -> + happyIn24 + (FieldPattern happy_var_1 happy_var_3 + )}} + +happyReduce_43 = happySpecReduce_0 20# happyReduction_43 +happyReduction_43 = happyIn25 + ([] + ) + +happyReduce_44 = happySpecReduce_1 20# happyReduction_44 +happyReduction_44 happy_x_1 + = case happyOut24 happy_x_1 of { happy_var_1 -> + happyIn25 + ((:[]) happy_var_1 + )} + +happyReduce_45 = happySpecReduce_3 20# happyReduction_45 +happyReduction_45 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut24 happy_x_1 of { happy_var_1 -> + case happyOut25 happy_x_3 of { happy_var_3 -> + happyIn25 + ((:) happy_var_1 happy_var_3 + )}} + +happyReduce_46 = happyReduce 7# 21# happyReduction_46 +happyReduction_46 (happy_x_7 `HappyStk` + happy_x_6 `HappyStk` + happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut27 happy_x_2 of { happy_var_2 -> + case happyOut26 happy_x_4 of { happy_var_4 -> + case happyOut26 happy_x_7 of { happy_var_7 -> + happyIn26 + (EPi happy_var_2 happy_var_4 happy_var_7 + ) `HappyStk` happyRest}}} + +happyReduce_47 = happySpecReduce_3 21# happyReduction_47 +happyReduction_47 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut28 happy_x_1 of { happy_var_1 -> + case happyOut26 happy_x_3 of { happy_var_3 -> + happyIn26 + (EPiNoVar happy_var_1 happy_var_3 + )}} + +happyReduce_48 = happySpecReduce_1 21# happyReduction_48 +happyReduction_48 happy_x_1 + = case happyOut28 happy_x_1 of { happy_var_1 -> + happyIn26 + (happy_var_1 + )} + +happyReduce_49 = happySpecReduce_1 22# happyReduction_49 +happyReduction_49 happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + happyIn27 + (VVar happy_var_1 + )} + +happyReduce_50 = happySpecReduce_1 22# happyReduction_50 +happyReduction_50 happy_x_1 + = happyIn27 + (VWild + ) + +happyReduce_51 = happyReduce 4# 23# happyReduction_51 +happyReduction_51 (happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut27 happy_x_2 of { happy_var_2 -> + case happyOut28 happy_x_4 of { happy_var_4 -> + happyIn28 + (EAbs happy_var_2 happy_var_4 + ) `HappyStk` happyRest}} + +happyReduce_52 = happyReduce 6# 23# happyReduction_52 +happyReduction_52 (happy_x_6 `HappyStk` + happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut30 happy_x_3 of { happy_var_3 -> + case happyOut28 happy_x_6 of { happy_var_6 -> + happyIn28 + (ELet happy_var_3 happy_var_6 + ) `HappyStk` happyRest}} + +happyReduce_53 = happyReduce 6# 23# happyReduction_53 +happyReduction_53 (happy_x_6 `HappyStk` + happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut26 happy_x_2 of { happy_var_2 -> + case happyOut32 happy_x_5 of { happy_var_5 -> + happyIn28 + (ECase happy_var_2 happy_var_5 + ) `HappyStk` happyRest}} + +happyReduce_54 = happyReduce 6# 23# happyReduction_54 +happyReduction_54 (happy_x_6 `HappyStk` + happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut26 happy_x_2 of { happy_var_2 -> + case happyOut26 happy_x_4 of { happy_var_4 -> + case happyOut28 happy_x_6 of { happy_var_6 -> + happyIn28 + (EIf happy_var_2 happy_var_4 happy_var_6 + ) `HappyStk` happyRest}}} + +happyReduce_55 = happyReduce 5# 23# happyReduction_55 +happyReduction_55 (happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut34 happy_x_3 of { happy_var_3 -> + case happyOut26 happy_x_4 of { happy_var_4 -> + happyIn28 + (EDo (reverse happy_var_3) happy_var_4 + ) `HappyStk` happyRest}} + +happyReduce_56 = happySpecReduce_1 23# happyReduction_56 +happyReduction_56 happy_x_1 + = case happyOut50 happy_x_1 of { happy_var_1 -> + happyIn28 + (happy_var_1 + )} + +happyReduce_57 = happySpecReduce_3 24# happyReduction_57 +happyReduction_57 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + case happyOut26 happy_x_3 of { happy_var_3 -> + happyIn29 + (LetDef happy_var_1 happy_var_3 + )}} + +happyReduce_58 = happySpecReduce_0 25# happyReduction_58 +happyReduction_58 = happyIn30 + ([] + ) + +happyReduce_59 = happySpecReduce_1 25# happyReduction_59 +happyReduction_59 happy_x_1 + = case happyOut29 happy_x_1 of { happy_var_1 -> + happyIn30 + ((:[]) happy_var_1 + )} + +happyReduce_60 = happySpecReduce_3 25# happyReduction_60 +happyReduction_60 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut29 happy_x_1 of { happy_var_1 -> + case happyOut30 happy_x_3 of { happy_var_3 -> + happyIn30 + ((:) happy_var_1 happy_var_3 + )}} + +happyReduce_61 = happyReduce 4# 26# happyReduction_61 +happyReduction_61 (happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut17 happy_x_1 of { happy_var_1 -> + case happyOut16 happy_x_2 of { happy_var_2 -> + case happyOut26 happy_x_4 of { happy_var_4 -> + happyIn31 + (Case happy_var_1 happy_var_2 happy_var_4 + ) `HappyStk` happyRest}}} + +happyReduce_62 = happySpecReduce_0 27# happyReduction_62 +happyReduction_62 = happyIn32 + ([] + ) + +happyReduce_63 = happySpecReduce_1 27# happyReduction_63 +happyReduction_63 happy_x_1 + = case happyOut31 happy_x_1 of { happy_var_1 -> + happyIn32 + ((:[]) happy_var_1 + )} + +happyReduce_64 = happySpecReduce_3 27# happyReduction_64 +happyReduction_64 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut31 happy_x_1 of { happy_var_1 -> + case happyOut32 happy_x_3 of { happy_var_3 -> + happyIn32 + ((:) happy_var_1 happy_var_3 + )}} + +happyReduce_65 = happySpecReduce_3 28# happyReduction_65 +happyReduction_65 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut27 happy_x_1 of { happy_var_1 -> + case happyOut26 happy_x_3 of { happy_var_3 -> + happyIn33 + (BindVar happy_var_1 happy_var_3 + )}} + +happyReduce_66 = happySpecReduce_1 28# happyReduction_66 +happyReduction_66 happy_x_1 + = case happyOut26 happy_x_1 of { happy_var_1 -> + happyIn33 + (BindNoVar happy_var_1 + )} + +happyReduce_67 = happySpecReduce_0 29# happyReduction_67 +happyReduction_67 = happyIn34 + ([] + ) + +happyReduce_68 = happySpecReduce_3 29# happyReduction_68 +happyReduction_68 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut34 happy_x_1 of { happy_var_1 -> + case happyOut33 happy_x_2 of { happy_var_2 -> + happyIn34 + (flip (:) happy_var_1 happy_var_2 + )}} + +happyReduce_69 = happySpecReduce_3 30# happyReduction_69 +happyReduction_69 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut35 happy_x_1 of { happy_var_1 -> + case happyOut36 happy_x_3 of { happy_var_3 -> + happyIn35 + (EBind happy_var_1 happy_var_3 + )}} + +happyReduce_70 = happySpecReduce_3 30# happyReduction_70 +happyReduction_70 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut35 happy_x_1 of { happy_var_1 -> + case happyOut36 happy_x_3 of { happy_var_3 -> + happyIn35 + (EBindC happy_var_1 happy_var_3 + )}} + +happyReduce_71 = happySpecReduce_1 30# happyReduction_71 +happyReduction_71 happy_x_1 + = case happyOut36 happy_x_1 of { happy_var_1 -> + happyIn35 + (happy_var_1 + )} + +happyReduce_72 = happySpecReduce_3 31# happyReduction_72 +happyReduction_72 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut37 happy_x_1 of { happy_var_1 -> + case happyOut36 happy_x_3 of { happy_var_3 -> + happyIn36 + (EOr happy_var_1 happy_var_3 + )}} + +happyReduce_73 = happySpecReduce_1 31# happyReduction_73 +happyReduction_73 happy_x_1 + = case happyOut37 happy_x_1 of { happy_var_1 -> + happyIn36 + (happy_var_1 + )} + +happyReduce_74 = happySpecReduce_3 32# happyReduction_74 +happyReduction_74 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut38 happy_x_1 of { happy_var_1 -> + case happyOut37 happy_x_3 of { happy_var_3 -> + happyIn37 + (EAnd happy_var_1 happy_var_3 + )}} + +happyReduce_75 = happySpecReduce_1 32# happyReduction_75 +happyReduction_75 happy_x_1 + = case happyOut38 happy_x_1 of { happy_var_1 -> + happyIn37 + (happy_var_1 + )} + +happyReduce_76 = happySpecReduce_3 33# happyReduction_76 +happyReduction_76 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut39 happy_x_1 of { happy_var_1 -> + case happyOut39 happy_x_3 of { happy_var_3 -> + happyIn38 + (EEq happy_var_1 happy_var_3 + )}} + +happyReduce_77 = happySpecReduce_3 33# happyReduction_77 +happyReduction_77 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut39 happy_x_1 of { happy_var_1 -> + case happyOut39 happy_x_3 of { happy_var_3 -> + happyIn38 + (ENe happy_var_1 happy_var_3 + )}} + +happyReduce_78 = happySpecReduce_3 33# happyReduction_78 +happyReduction_78 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut39 happy_x_1 of { happy_var_1 -> + case happyOut39 happy_x_3 of { happy_var_3 -> + happyIn38 + (ELt happy_var_1 happy_var_3 + )}} + +happyReduce_79 = happySpecReduce_3 33# happyReduction_79 +happyReduction_79 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut39 happy_x_1 of { happy_var_1 -> + case happyOut39 happy_x_3 of { happy_var_3 -> + happyIn38 + (ELe happy_var_1 happy_var_3 + )}} + +happyReduce_80 = happySpecReduce_3 33# happyReduction_80 +happyReduction_80 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut39 happy_x_1 of { happy_var_1 -> + case happyOut39 happy_x_3 of { happy_var_3 -> + happyIn38 + (EGt happy_var_1 happy_var_3 + )}} + +happyReduce_81 = happySpecReduce_3 33# happyReduction_81 +happyReduction_81 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut39 happy_x_1 of { happy_var_1 -> + case happyOut39 happy_x_3 of { happy_var_3 -> + happyIn38 + (EGe happy_var_1 happy_var_3 + )}} + +happyReduce_82 = happySpecReduce_1 33# happyReduction_82 +happyReduction_82 happy_x_1 + = case happyOut39 happy_x_1 of { happy_var_1 -> + happyIn38 + (happy_var_1 + )} + +happyReduce_83 = happySpecReduce_3 34# happyReduction_83 +happyReduction_83 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut40 happy_x_1 of { happy_var_1 -> + case happyOut39 happy_x_3 of { happy_var_3 -> + happyIn39 + (EListCons happy_var_1 happy_var_3 + )}} + +happyReduce_84 = happySpecReduce_1 34# happyReduction_84 +happyReduction_84 happy_x_1 + = case happyOut40 happy_x_1 of { happy_var_1 -> + happyIn39 + (happy_var_1 + )} + +happyReduce_85 = happySpecReduce_3 35# happyReduction_85 +happyReduction_85 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut40 happy_x_1 of { happy_var_1 -> + case happyOut41 happy_x_3 of { happy_var_3 -> + happyIn40 + (EAdd happy_var_1 happy_var_3 + )}} + +happyReduce_86 = happySpecReduce_3 35# happyReduction_86 +happyReduction_86 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut40 happy_x_1 of { happy_var_1 -> + case happyOut41 happy_x_3 of { happy_var_3 -> + happyIn40 + (ESub happy_var_1 happy_var_3 + )}} + +happyReduce_87 = happySpecReduce_1 35# happyReduction_87 +happyReduction_87 happy_x_1 + = case happyOut41 happy_x_1 of { happy_var_1 -> + happyIn40 + (happy_var_1 + )} + +happyReduce_88 = happySpecReduce_3 36# happyReduction_88 +happyReduction_88 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut41 happy_x_1 of { happy_var_1 -> + case happyOut42 happy_x_3 of { happy_var_3 -> + happyIn41 + (EMul happy_var_1 happy_var_3 + )}} + +happyReduce_89 = happySpecReduce_3 36# happyReduction_89 +happyReduction_89 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut41 happy_x_1 of { happy_var_1 -> + case happyOut42 happy_x_3 of { happy_var_3 -> + happyIn41 + (EDiv happy_var_1 happy_var_3 + )}} + +happyReduce_90 = happySpecReduce_3 36# happyReduction_90 +happyReduction_90 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut41 happy_x_1 of { happy_var_1 -> + case happyOut42 happy_x_3 of { happy_var_3 -> + happyIn41 + (EMod happy_var_1 happy_var_3 + )}} + +happyReduce_91 = happySpecReduce_1 36# happyReduction_91 +happyReduction_91 happy_x_1 + = case happyOut42 happy_x_1 of { happy_var_1 -> + happyIn41 + (happy_var_1 + )} + +happyReduce_92 = happySpecReduce_2 37# happyReduction_92 +happyReduction_92 happy_x_2 + happy_x_1 + = case happyOut42 happy_x_2 of { happy_var_2 -> + happyIn42 + (ENeg happy_var_2 + )} + +happyReduce_93 = happySpecReduce_1 37# happyReduction_93 +happyReduction_93 happy_x_1 + = case happyOut43 happy_x_1 of { happy_var_1 -> + happyIn42 + (happy_var_1 + )} + +happyReduce_94 = happySpecReduce_2 38# happyReduction_94 +happyReduction_94 happy_x_2 + happy_x_1 + = case happyOut43 happy_x_1 of { happy_var_1 -> + case happyOut44 happy_x_2 of { happy_var_2 -> + happyIn43 + (EApp happy_var_1 happy_var_2 + )}} + +happyReduce_95 = happySpecReduce_1 38# happyReduction_95 +happyReduction_95 happy_x_1 + = case happyOut44 happy_x_1 of { happy_var_1 -> + happyIn43 + (happy_var_1 + )} + +happyReduce_96 = happySpecReduce_3 39# happyReduction_96 +happyReduction_96 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut44 happy_x_1 of { happy_var_1 -> + case happyOut5 happy_x_3 of { happy_var_3 -> + happyIn44 + (EProj happy_var_1 happy_var_3 + )}} + +happyReduce_97 = happySpecReduce_1 39# happyReduction_97 +happyReduction_97 happy_x_1 + = case happyOut45 happy_x_1 of { happy_var_1 -> + happyIn44 + (happy_var_1 + )} + +happyReduce_98 = happyReduce 4# 40# happyReduction_98 +happyReduction_98 (happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut47 happy_x_3 of { happy_var_3 -> + happyIn45 + (ERecType happy_var_3 + ) `HappyStk` happyRest} + +happyReduce_99 = happyReduce 4# 40# happyReduction_99 +happyReduction_99 (happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut49 happy_x_3 of { happy_var_3 -> + happyIn45 + (ERec happy_var_3 + ) `HappyStk` happyRest} + +happyReduce_100 = happySpecReduce_2 40# happyReduction_100 +happyReduction_100 happy_x_2 + happy_x_1 + = happyIn45 + (EEmptyList + ) + +happyReduce_101 = happySpecReduce_3 40# happyReduction_101 +happyReduction_101 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut51 happy_x_2 of { happy_var_2 -> + happyIn45 + (EList happy_var_2 + )} + +happyReduce_102 = happyReduce 5# 40# happyReduction_102 +happyReduction_102 (happy_x_5 `HappyStk` + happy_x_4 `HappyStk` + happy_x_3 `HappyStk` + happy_x_2 `HappyStk` + happy_x_1 `HappyStk` + happyRest) + = case happyOut26 happy_x_2 of { happy_var_2 -> + case happyOut51 happy_x_4 of { happy_var_4 -> + happyIn45 + (ETuple happy_var_2 happy_var_4 + ) `HappyStk` happyRest}} + +happyReduce_103 = happySpecReduce_1 40# happyReduction_103 +happyReduction_103 happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + happyIn45 + (EVar happy_var_1 + )} + +happyReduce_104 = happySpecReduce_1 40# happyReduction_104 +happyReduction_104 happy_x_1 + = happyIn45 + (EType + ) + +happyReduce_105 = happySpecReduce_1 40# happyReduction_105 +happyReduction_105 happy_x_1 + = case happyOut6 happy_x_1 of { happy_var_1 -> + happyIn45 + (EStr happy_var_1 + )} + +happyReduce_106 = happySpecReduce_1 40# happyReduction_106 +happyReduction_106 happy_x_1 + = case happyOut7 happy_x_1 of { happy_var_1 -> + happyIn45 + (EInteger happy_var_1 + )} + +happyReduce_107 = happySpecReduce_1 40# happyReduction_107 +happyReduction_107 happy_x_1 + = case happyOut8 happy_x_1 of { happy_var_1 -> + happyIn45 + (EDouble happy_var_1 + )} + +happyReduce_108 = happySpecReduce_1 40# happyReduction_108 +happyReduction_108 happy_x_1 + = happyIn45 + (EMeta + ) + +happyReduce_109 = happySpecReduce_3 40# happyReduction_109 +happyReduction_109 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut26 happy_x_2 of { happy_var_2 -> + happyIn45 + (happy_var_2 + )} + +happyReduce_110 = happySpecReduce_3 41# happyReduction_110 +happyReduction_110 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + case happyOut26 happy_x_3 of { happy_var_3 -> + happyIn46 + (FieldType happy_var_1 happy_var_3 + )}} + +happyReduce_111 = happySpecReduce_0 42# happyReduction_111 +happyReduction_111 = happyIn47 + ([] + ) + +happyReduce_112 = happySpecReduce_1 42# happyReduction_112 +happyReduction_112 happy_x_1 + = case happyOut46 happy_x_1 of { happy_var_1 -> + happyIn47 + ((:[]) happy_var_1 + )} + +happyReduce_113 = happySpecReduce_3 42# happyReduction_113 +happyReduction_113 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut46 happy_x_1 of { happy_var_1 -> + case happyOut47 happy_x_3 of { happy_var_3 -> + happyIn47 + ((:) happy_var_1 happy_var_3 + )}} + +happyReduce_114 = happySpecReduce_3 43# happyReduction_114 +happyReduction_114 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut5 happy_x_1 of { happy_var_1 -> + case happyOut26 happy_x_3 of { happy_var_3 -> + happyIn48 + (FieldValue happy_var_1 happy_var_3 + )}} + +happyReduce_115 = happySpecReduce_0 44# happyReduction_115 +happyReduction_115 = happyIn49 + ([] + ) + +happyReduce_116 = happySpecReduce_1 44# happyReduction_116 +happyReduction_116 happy_x_1 + = case happyOut48 happy_x_1 of { happy_var_1 -> + happyIn49 + ((:[]) happy_var_1 + )} + +happyReduce_117 = happySpecReduce_3 44# happyReduction_117 +happyReduction_117 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut48 happy_x_1 of { happy_var_1 -> + case happyOut49 happy_x_3 of { happy_var_3 -> + happyIn49 + ((:) happy_var_1 happy_var_3 + )}} + +happyReduce_118 = happySpecReduce_1 45# happyReduction_118 +happyReduction_118 happy_x_1 + = case happyOut35 happy_x_1 of { happy_var_1 -> + happyIn50 + (happy_var_1 + )} + +happyReduce_119 = happySpecReduce_1 46# happyReduction_119 +happyReduction_119 happy_x_1 + = case happyOut26 happy_x_1 of { happy_var_1 -> + happyIn51 + ((:[]) happy_var_1 + )} + +happyReduce_120 = happySpecReduce_3 46# happyReduction_120 +happyReduction_120 happy_x_3 + happy_x_2 + happy_x_1 + = case happyOut26 happy_x_1 of { happy_var_1 -> + case happyOut51 happy_x_3 of { happy_var_3 -> + happyIn51 + ((:) happy_var_1 happy_var_3 + )}} + +happyNewToken action sts stk [] = + happyDoAction 54# (error "reading EOF!") action sts stk [] + +happyNewToken action sts stk (tk:tks) = + let cont i = happyDoAction i tk action sts stk tks in + case tk of { + PT _ (TS ";") -> cont 1#; + PT _ (TS ":") -> cont 2#; + PT _ (TS "{") -> cont 3#; + PT _ (TS "}") -> cont 4#; + PT _ (TS "=") -> cont 5#; + PT _ (TS "|") -> cont 6#; + PT _ (TS "||") -> cont 7#; + PT _ (TS "::") -> cont 8#; + PT _ (TS "(") -> cont 9#; + PT _ (TS ")") -> cont 10#; + PT _ (TS "[") -> cont 11#; + PT _ (TS "]") -> cont 12#; + PT _ (TS ",") -> cont 13#; + PT _ (TS "_") -> cont 14#; + PT _ (TS "->") -> cont 15#; + PT _ (TS "\\") -> cont 16#; + PT _ (TS "<-") -> cont 17#; + PT _ (TS ">>=") -> cont 18#; + PT _ (TS ">>") -> cont 19#; + PT _ (TS "&&") -> cont 20#; + PT _ (TS "==") -> cont 21#; + PT _ (TS "/=") -> cont 22#; + PT _ (TS "<") -> cont 23#; + PT _ (TS "<=") -> cont 24#; + PT _ (TS ">") -> cont 25#; + PT _ (TS ">=") -> cont 26#; + PT _ (TS "+") -> cont 27#; + PT _ (TS "-") -> cont 28#; + PT _ (TS "*") -> cont 29#; + PT _ (TS "/") -> cont 30#; + PT _ (TS "%") -> cont 31#; + PT _ (TS ".") -> cont 32#; + PT _ (TS "?") -> cont 33#; + PT _ (TS "Type") -> cont 34#; + PT _ (TS "case") -> cont 35#; + PT _ (TS "data") -> cont 36#; + PT _ (TS "derive") -> cont 37#; + PT _ (TS "do") -> cont 38#; + PT _ (TS "else") -> cont 39#; + PT _ (TS "if") -> cont 40#; + PT _ (TS "import") -> cont 41#; + PT _ (TS "in") -> cont 42#; + PT _ (TS "let") -> cont 43#; + PT _ (TS "of") -> cont 44#; + PT _ (TS "rec") -> cont 45#; + PT _ (TS "sig") -> cont 46#; + PT _ (TS "then") -> cont 47#; + PT _ (TS "where") -> cont 48#; + PT _ (TV happy_dollar_dollar) -> cont 49#; + PT _ (TL happy_dollar_dollar) -> cont 50#; + PT _ (TI happy_dollar_dollar) -> cont 51#; + PT _ (TD happy_dollar_dollar) -> cont 52#; + _ -> cont 53#; + _ -> happyError' (tk:tks) + } + +happyError_ tk tks = happyError' (tk:tks) + +happyThen :: () => Err a -> (a -> Err b) -> Err b +happyThen = (thenM) +happyReturn :: () => a -> Err a +happyReturn = (returnM) +happyThen1 m k tks = (thenM) m (\a -> k a tks) +happyReturn1 :: () => a -> b -> Err a +happyReturn1 = \a tks -> (returnM) a +happyError' :: () => [Token] -> Err a +happyError' = happyError + +pModule tks = happySomeParser where + happySomeParser = happyThen (happyParse 0# tks) (\x -> happyReturn (happyOut9 x)) + +pExp tks = happySomeParser where + happySomeParser = happyThen (happyParse 1# tks) (\x -> happyReturn (happyOut26 x)) + +happySeq = happyDontSeq + +returnM :: a -> Err a +returnM = return + +thenM :: Err a -> (a -> Err b) -> Err b +thenM = (>>=) + +happyError :: [Token] -> Err a +happyError ts = + Bad $ "syntax error at " ++ tokenPos ts ++ if null ts then [] else (" before " ++ unwords (map prToken (take 4 ts))) + +myLexer = tokens +{-# LINE 1 "GenericTemplate.hs" #-} +{-# LINE 1 "<built-in>" #-} +{-# LINE 1 "<command line>" #-} +{-# LINE 1 "GenericTemplate.hs" #-} +-- $Id$ + +{-# LINE 28 "GenericTemplate.hs" #-} + + +data Happy_IntList = HappyCons Int# Happy_IntList + + + + + +{-# LINE 49 "GenericTemplate.hs" #-} + +{-# LINE 59 "GenericTemplate.hs" #-} + +{-# LINE 68 "GenericTemplate.hs" #-} + +infixr 9 `HappyStk` +data HappyStk a = HappyStk a (HappyStk a) + +----------------------------------------------------------------------------- +-- starting the parse + +happyParse start_state = happyNewToken start_state notHappyAtAll notHappyAtAll + +----------------------------------------------------------------------------- +-- Accepting the parse + +-- If the current token is 0#, it means we've just accepted a partial +-- parse (a %partial parser). We must ignore the saved token on the top of +-- the stack in this case. +happyAccept 0# tk st sts (_ `HappyStk` ans `HappyStk` _) = + happyReturn1 ans +happyAccept j tk st sts (HappyStk ans _) = + (happyTcHack j (happyTcHack st)) (happyReturn1 ans) + +----------------------------------------------------------------------------- +-- Arrays only: do the next action + + + +happyDoAction i tk st + = {- nothing -} + + + case action of + 0# -> {- nothing -} + happyFail i tk st + -1# -> {- nothing -} + happyAccept i tk st + n | (n <# (0# :: Int#)) -> {- nothing -} + + (happyReduceArr ! rule) i tk st + where rule = (I# ((negateInt# ((n +# (1# :: Int#)))))) + n -> {- nothing -} + + + happyShift new_state i tk st + where new_state = (n -# (1# :: Int#)) + where off = indexShortOffAddr happyActOffsets st + off_i = (off +# i) + check = if (off_i >=# (0# :: Int#)) + then (indexShortOffAddr happyCheck off_i ==# i) + else False + action | check = indexShortOffAddr happyTable off_i + | otherwise = indexShortOffAddr happyDefActions st + +{-# LINE 127 "GenericTemplate.hs" #-} + + +indexShortOffAddr (HappyA# arr) off = +#if __GLASGOW_HASKELL__ > 500 + narrow16Int# i +#elif __GLASGOW_HASKELL__ == 500 + intToInt16# i +#else + (i `iShiftL#` 16#) `iShiftRA#` 16# +#endif + where +#if __GLASGOW_HASKELL__ >= 503 + i = word2Int# ((high `uncheckedShiftL#` 8#) `or#` low) +#else + i = word2Int# ((high `shiftL#` 8#) `or#` low) +#endif + high = int2Word# (ord# (indexCharOffAddr# arr (off' +# 1#))) + low = int2Word# (ord# (indexCharOffAddr# arr off')) + off' = off *# 2# + + + + + +data HappyAddr = HappyA# Addr# + + + + +----------------------------------------------------------------------------- +-- HappyState data type (not arrays) + +{-# LINE 170 "GenericTemplate.hs" #-} + +----------------------------------------------------------------------------- +-- Shifting a token + +happyShift new_state 0# tk st sts stk@(x `HappyStk` _) = + let i = (case unsafeCoerce# x of { (I# (i)) -> i }) in +-- trace "shifting the error token" $ + happyDoAction i tk new_state (HappyCons (st) (sts)) (stk) + +happyShift new_state i tk st sts stk = + happyNewToken new_state (HappyCons (st) (sts)) ((happyInTok (tk))`HappyStk`stk) + +-- happyReduce is specialised for the common cases. + +happySpecReduce_0 i fn 0# tk st sts stk + = happyFail 0# tk st sts stk +happySpecReduce_0 nt fn j tk st@((action)) sts stk + = happyGoto nt j tk st (HappyCons (st) (sts)) (fn `HappyStk` stk) + +happySpecReduce_1 i fn 0# tk st sts stk + = happyFail 0# tk st sts stk +happySpecReduce_1 nt fn j tk _ sts@((HappyCons (st@(action)) (_))) (v1`HappyStk`stk') + = let r = fn v1 in + happySeq r (happyGoto nt j tk st sts (r `HappyStk` stk')) + +happySpecReduce_2 i fn 0# tk st sts stk + = happyFail 0# tk st sts stk +happySpecReduce_2 nt fn j tk _ (HappyCons (_) (sts@((HappyCons (st@(action)) (_))))) (v1`HappyStk`v2`HappyStk`stk') + = let r = fn v1 v2 in + happySeq r (happyGoto nt j tk st sts (r `HappyStk` stk')) + +happySpecReduce_3 i fn 0# tk st sts stk + = happyFail 0# tk st sts stk +happySpecReduce_3 nt fn j tk _ (HappyCons (_) ((HappyCons (_) (sts@((HappyCons (st@(action)) (_))))))) (v1`HappyStk`v2`HappyStk`v3`HappyStk`stk') + = let r = fn v1 v2 v3 in + happySeq r (happyGoto nt j tk st sts (r `HappyStk` stk')) + +happyReduce k i fn 0# tk st sts stk + = happyFail 0# tk st sts stk +happyReduce k nt fn j tk st sts stk + = case happyDrop (k -# (1# :: Int#)) sts of + sts1@((HappyCons (st1@(action)) (_))) -> + let r = fn stk in -- it doesn't hurt to always seq here... + happyDoSeq r (happyGoto nt j tk st1 sts1 r) + +happyMonadReduce k nt fn 0# tk st sts stk + = happyFail 0# tk st sts stk +happyMonadReduce k nt fn j tk st sts stk = + happyThen1 (fn stk) (\r -> happyGoto nt j tk st1 sts1 (r `HappyStk` drop_stk)) + where sts1@((HappyCons (st1@(action)) (_))) = happyDrop k (HappyCons (st) (sts)) + drop_stk = happyDropStk k stk + +happyDrop 0# l = l +happyDrop n (HappyCons (_) (t)) = happyDrop (n -# (1# :: Int#)) t + +happyDropStk 0# l = l +happyDropStk n (x `HappyStk` xs) = happyDropStk (n -# (1#::Int#)) xs + +----------------------------------------------------------------------------- +-- Moving to a new state after a reduction + + +happyGoto nt j tk st = + {- nothing -} + happyDoAction j tk new_state + where off = indexShortOffAddr happyGotoOffsets st + off_i = (off +# nt) + new_state = indexShortOffAddr happyTable off_i + + + + +----------------------------------------------------------------------------- +-- Error recovery (0# is the error token) + +-- parse error if we are in recovery and we fail again +happyFail 0# tk old_st _ stk = +-- trace "failing" $ + happyError_ tk + +{- We don't need state discarding for our restricted implementation of + "error". In fact, it can cause some bogus parses, so I've disabled it + for now --SDM + +-- discard a state +happyFail 0# tk old_st (HappyCons ((action)) (sts)) + (saved_tok `HappyStk` _ `HappyStk` stk) = +-- trace ("discarding state, depth " ++ show (length stk)) $ + happyDoAction 0# tk action sts ((saved_tok`HappyStk`stk)) +-} + +-- Enter error recovery: generate an error token, +-- save the old token and carry on. +happyFail i tk (action) sts stk = +-- trace "entering error recovery" $ + happyDoAction 0# tk action sts ( (unsafeCoerce# (I# (i))) `HappyStk` stk) + +-- Internal happy errors: + +notHappyAtAll = error "Internal Happy error\n" + +----------------------------------------------------------------------------- +-- Hack to get the typechecker to accept our action functions + + +happyTcHack :: Int# -> a -> a +happyTcHack x y = y +{-# INLINE happyTcHack #-} + + +----------------------------------------------------------------------------- +-- Seq-ing. If the --strict flag is given, then Happy emits +-- happySeq = happyDoSeq +-- otherwise it emits +-- happySeq = happyDontSeq + +happyDoSeq, happyDontSeq :: a -> b -> b +happyDoSeq a b = a `seq` b +happyDontSeq a b = b + +----------------------------------------------------------------------------- +-- Don't inline any functions from the template. GHC has a nasty habit +-- of deciding to inline happyGoto everywhere, which increases the size of +-- the generated parser quite a bit. + + +{-# NOINLINE happyDoAction #-} +{-# NOINLINE happyTable #-} +{-# NOINLINE happyCheck #-} +{-# NOINLINE happyActOffsets #-} +{-# NOINLINE happyGotoOffsets #-} +{-# NOINLINE happyDefActions #-} + +{-# NOINLINE happyShift #-} +{-# NOINLINE happySpecReduce_0 #-} +{-# NOINLINE happySpecReduce_1 #-} +{-# NOINLINE happySpecReduce_2 #-} +{-# NOINLINE happySpecReduce_3 #-} +{-# NOINLINE happyReduce #-} +{-# NOINLINE happyMonadReduce #-} +{-# NOINLINE happyGoto #-} +{-# NOINLINE happyFail #-} + +-- end of Happy Template. diff --git a/src/Transfer/Syntax/Par.y b/src/Transfer/Syntax/Par.y new file mode 100644 index 000000000..13c7800a8 --- /dev/null +++ b/src/Transfer/Syntax/Par.y @@ -0,0 +1,340 @@ +-- This Happy file was machine-generated by the BNF converter +{ +{-# OPTIONS -fno-warn-incomplete-patterns -fno-warn-overlapping-patterns #-} +module Transfer.Syntax.Par where +import Transfer.Syntax.Abs +import Transfer.Syntax.Lex +import Transfer.ErrM +} + +%name pModule Module +%name pExp Exp + +-- no lexer declaration +%monad { Err } { thenM } { returnM } +%tokentype { Token } + +%token + ';' { PT _ (TS ";") } + ':' { PT _ (TS ":") } + '{' { PT _ (TS "{") } + '}' { PT _ (TS "}") } + '=' { PT _ (TS "=") } + '|' { PT _ (TS "|") } + '||' { PT _ (TS "||") } + '::' { PT _ (TS "::") } + '(' { PT _ (TS "(") } + ')' { PT _ (TS ")") } + '[' { PT _ (TS "[") } + ']' { PT _ (TS "]") } + ',' { PT _ (TS ",") } + '_' { PT _ (TS "_") } + '->' { PT _ (TS "->") } + '\\' { PT _ (TS "\\") } + '<-' { PT _ (TS "<-") } + '>>=' { PT _ (TS ">>=") } + '>>' { PT _ (TS ">>") } + '&&' { PT _ (TS "&&") } + '==' { PT _ (TS "==") } + '/=' { PT _ (TS "/=") } + '<' { PT _ (TS "<") } + '<=' { PT _ (TS "<=") } + '>' { PT _ (TS ">") } + '>=' { PT _ (TS ">=") } + '+' { PT _ (TS "+") } + '-' { PT _ (TS "-") } + '*' { PT _ (TS "*") } + '/' { PT _ (TS "/") } + '%' { PT _ (TS "%") } + '.' { PT _ (TS ".") } + '?' { PT _ (TS "?") } + 'Type' { PT _ (TS "Type") } + 'case' { PT _ (TS "case") } + 'data' { PT _ (TS "data") } + 'derive' { PT _ (TS "derive") } + 'do' { PT _ (TS "do") } + 'else' { PT _ (TS "else") } + 'if' { PT _ (TS "if") } + 'import' { PT _ (TS "import") } + 'in' { PT _ (TS "in") } + 'let' { PT _ (TS "let") } + 'of' { PT _ (TS "of") } + 'rec' { PT _ (TS "rec") } + 'sig' { PT _ (TS "sig") } + 'then' { PT _ (TS "then") } + 'where' { PT _ (TS "where") } + +L_ident { PT _ (TV $$) } +L_quoted { PT _ (TL $$) } +L_integ { PT _ (TI $$) } +L_doubl { PT _ (TD $$) } +L_err { _ } + + +%% + +Ident :: { Ident } : L_ident { Ident $1 } +String :: { String } : L_quoted { $1 } +Integer :: { Integer } : L_integ { (read $1) :: Integer } +Double :: { Double } : L_doubl { (read $1) :: Double } + +Module :: { Module } +Module : ListImport ListDecl { Module (reverse $1) (reverse $2) } + + +Import :: { Import } +Import : 'import' Ident { Import $2 } + + +ListImport :: { [Import] } +ListImport : {- empty -} { [] } + | ListImport Import ';' { flip (:) $1 $2 } + + +Decl :: { Decl } +Decl : 'data' Ident ':' Exp 'where' '{' ListConsDecl '}' { DataDecl $2 $4 $7 } + | Ident ':' Exp { TypeDecl $1 $3 } + | Ident ListPattern Guard '=' Exp { ValueDecl $1 (reverse $2) $3 $5 } + | 'derive' Ident Ident { DeriveDecl $2 $3 } + + +ListDecl :: { [Decl] } +ListDecl : {- empty -} { [] } + | ListDecl Decl ';' { flip (:) $1 $2 } + + +ConsDecl :: { ConsDecl } +ConsDecl : Ident ':' Exp { ConsDecl $1 $3 } + + +ListConsDecl :: { [ConsDecl] } +ListConsDecl : {- empty -} { [] } + | ConsDecl { (:[]) $1 } + | ConsDecl ';' ListConsDecl { (:) $1 $3 } + + +Guard :: { Guard } +Guard : '|' Exp1 { GuardExp $2 } + | {- empty -} { GuardNo } + + +Pattern :: { Pattern } +Pattern : Pattern1 '||' Pattern { POr $1 $3 } + | Pattern1 { $1 } + + +Pattern1 :: { Pattern } +Pattern1 : Pattern2 '::' Pattern1 { PListCons $1 $3 } + | Pattern2 { $1 } + + +Pattern2 :: { Pattern } +Pattern2 : Ident Pattern3 ListPattern { PConsTop $1 $2 (reverse $3) } + | Pattern3 { $1 } + + +Pattern3 :: { Pattern } +Pattern3 : 'rec' '{' ListFieldPattern '}' { PRec $3 } + | '[' ']' { PEmptyList } + | '[' ListCommaPattern ']' { PList $2 } + | '(' CommaPattern ',' ListCommaPattern ')' { PTuple $2 $4 } + | String { PStr $1 } + | Integer { PInt $1 } + | Ident { PVar $1 } + | '_' { PWild } + | '(' Pattern ')' { $2 } + + +CommaPattern :: { CommaPattern } +CommaPattern : Pattern { CommaPattern $1 } + + +ListCommaPattern :: { [CommaPattern] } +ListCommaPattern : CommaPattern { (:[]) $1 } + | CommaPattern ',' ListCommaPattern { (:) $1 $3 } + + +ListPattern :: { [Pattern] } +ListPattern : {- empty -} { [] } + | ListPattern Pattern3 { flip (:) $1 $2 } + + +FieldPattern :: { FieldPattern } +FieldPattern : Ident '=' Pattern { FieldPattern $1 $3 } + + +ListFieldPattern :: { [FieldPattern] } +ListFieldPattern : {- empty -} { [] } + | FieldPattern { (:[]) $1 } + | FieldPattern ';' ListFieldPattern { (:) $1 $3 } + + +Exp :: { Exp } +Exp : '(' VarOrWild ':' Exp ')' '->' Exp { EPi $2 $4 $7 } + | Exp1 '->' Exp { EPiNoVar $1 $3 } + | Exp1 { $1 } + + +VarOrWild :: { VarOrWild } +VarOrWild : Ident { VVar $1 } + | '_' { VWild } + + +Exp1 :: { Exp } +Exp1 : '\\' VarOrWild '->' Exp1 { EAbs $2 $4 } + | 'let' '{' ListLetDef '}' 'in' Exp1 { ELet $3 $6 } + | 'case' Exp 'of' '{' ListCase '}' { ECase $2 $5 } + | 'if' Exp 'then' Exp 'else' Exp1 { EIf $2 $4 $6 } + | 'do' '{' ListBind Exp '}' { EDo (reverse $3) $4 } + | Exp2 { $1 } + + +LetDef :: { LetDef } +LetDef : Ident '=' Exp { LetDef $1 $3 } + + +ListLetDef :: { [LetDef] } +ListLetDef : {- empty -} { [] } + | LetDef { (:[]) $1 } + | LetDef ';' ListLetDef { (:) $1 $3 } + + +Case :: { Case } +Case : Pattern Guard '->' Exp { Case $1 $2 $4 } + + +ListCase :: { [Case] } +ListCase : {- empty -} { [] } + | Case { (:[]) $1 } + | Case ';' ListCase { (:) $1 $3 } + + +Bind :: { Bind } +Bind : VarOrWild '<-' Exp { BindVar $1 $3 } + | Exp { BindNoVar $1 } + + +ListBind :: { [Bind] } +ListBind : {- empty -} { [] } + | ListBind Bind ';' { flip (:) $1 $2 } + + +Exp3 :: { Exp } +Exp3 : Exp3 '>>=' Exp4 { EBind $1 $3 } + | Exp3 '>>' Exp4 { EBindC $1 $3 } + | Exp4 { $1 } + + +Exp4 :: { Exp } +Exp4 : Exp5 '||' Exp4 { EOr $1 $3 } + | Exp5 { $1 } + + +Exp5 :: { Exp } +Exp5 : Exp6 '&&' Exp5 { EAnd $1 $3 } + | Exp6 { $1 } + + +Exp6 :: { Exp } +Exp6 : Exp7 '==' Exp7 { EEq $1 $3 } + | Exp7 '/=' Exp7 { ENe $1 $3 } + | Exp7 '<' Exp7 { ELt $1 $3 } + | Exp7 '<=' Exp7 { ELe $1 $3 } + | Exp7 '>' Exp7 { EGt $1 $3 } + | Exp7 '>=' Exp7 { EGe $1 $3 } + | Exp7 { $1 } + + +Exp7 :: { Exp } +Exp7 : Exp8 '::' Exp7 { EListCons $1 $3 } + | Exp8 { $1 } + + +Exp8 :: { Exp } +Exp8 : Exp8 '+' Exp9 { EAdd $1 $3 } + | Exp8 '-' Exp9 { ESub $1 $3 } + | Exp9 { $1 } + + +Exp9 :: { Exp } +Exp9 : Exp9 '*' Exp10 { EMul $1 $3 } + | Exp9 '/' Exp10 { EDiv $1 $3 } + | Exp9 '%' Exp10 { EMod $1 $3 } + | Exp10 { $1 } + + +Exp10 :: { Exp } +Exp10 : '-' Exp10 { ENeg $2 } + | Exp11 { $1 } + + +Exp11 :: { Exp } +Exp11 : Exp11 Exp12 { EApp $1 $2 } + | Exp12 { $1 } + + +Exp12 :: { Exp } +Exp12 : Exp12 '.' Ident { EProj $1 $3 } + | Exp13 { $1 } + + +Exp13 :: { Exp } +Exp13 : 'sig' '{' ListFieldType '}' { ERecType $3 } + | 'rec' '{' ListFieldValue '}' { ERec $3 } + | '[' ']' { EEmptyList } + | '[' ListExp ']' { EList $2 } + | '(' Exp ',' ListExp ')' { ETuple $2 $4 } + | Ident { EVar $1 } + | 'Type' { EType } + | String { EStr $1 } + | Integer { EInteger $1 } + | Double { EDouble $1 } + | '?' { EMeta } + | '(' Exp ')' { $2 } + + +FieldType :: { FieldType } +FieldType : Ident ':' Exp { FieldType $1 $3 } + + +ListFieldType :: { [FieldType] } +ListFieldType : {- empty -} { [] } + | FieldType { (:[]) $1 } + | FieldType ';' ListFieldType { (:) $1 $3 } + + +FieldValue :: { FieldValue } +FieldValue : Ident '=' Exp { FieldValue $1 $3 } + + +ListFieldValue :: { [FieldValue] } +ListFieldValue : {- empty -} { [] } + | FieldValue { (:[]) $1 } + | FieldValue ';' ListFieldValue { (:) $1 $3 } + + +Exp2 :: { Exp } +Exp2 : Exp3 { $1 } + + +ListExp :: { [Exp] } +ListExp : Exp { (:[]) $1 } + | Exp ',' ListExp { (:) $1 $3 } + + + +{ + +returnM :: a -> Err a +returnM = return + +thenM :: Err a -> (a -> Err b) -> Err b +thenM = (>>=) + +happyError :: [Token] -> Err a +happyError ts = + Bad $ "syntax error at " ++ tokenPos ts ++ if null ts then [] else (" before " ++ unwords (map prToken (take 4 ts))) + +myLexer = tokens +} + diff --git a/src/Transfer/Syntax/Print.hs b/src/Transfer/Syntax/Print.hs new file mode 100644 index 000000000..50164477d --- /dev/null +++ b/src/Transfer/Syntax/Print.hs @@ -0,0 +1,206 @@ +{-# OPTIONS_GHC -fglasgow-exts #-} +module Transfer.Syntax.Print where + +-- pretty-printer generated by the BNF converter + +import Transfer.Syntax.Abs +import Data.Char +import Data.List (intersperse) + +-- the top-level printing method +printTree :: Print a => a -> String +printTree = render . prt 0 + +type Doc = [ShowS] -> [ShowS] + +doc :: ShowS -> Doc +doc = (:) + +render :: Doc -> String +render d = rend 0 (map ($ "") $ d []) "" where + rend i ss = case ss of + "[" :ts -> showChar '[' . rend i ts + "(" :ts -> showChar '(' . rend i ts + "{" :ts -> showChar '{' . new (i+1) . rend (i+1) ts + "}" : ";":ts -> new (i-1) . space "}" . showChar ';' . new (i-1) . rend (i-1) ts + "}" :ts -> new (i-1) . showChar '}' . new (i-1) . rend (i-1) ts + ";" :ts -> showChar ';' . new i . rend i ts + t : "," :ts -> showString t . space "," . rend i ts + t : ")" :ts -> showString t . showChar ')' . rend i ts + t : "]" :ts -> showString t . showChar ']' . rend i ts + t :ts -> space t . rend i ts + _ -> id + new i = showChar '\n' . replicateS (2*i) (showChar ' ') . dropWhile isSpace + space t = showString t . (\s -> if null s then "" else (' ':s)) + +parenth :: Doc -> Doc +parenth ss = doc (showChar '(') . ss . doc (showChar ')') + +concatS :: [ShowS] -> ShowS +concatS = foldr (.) id + +concatD :: [Doc] -> Doc +concatD = foldr (.) id + +unwordsD :: [Doc] -> Doc +unwordsD = concatD . intersperse (doc (showChar ' ')) + +replicateS :: Int -> ShowS -> ShowS +replicateS n f = concatS (replicate n f) + +-- the printer class does the job +class Print a where + prt :: Int -> a -> Doc + +instance Print Char where + prt _ s = doc (showChar '\'' . mkEsc '\'' s . showChar '\'') + +instance Print String where + prt _ s = doc (showChar '"' . concatS (map (mkEsc '"') s) . showChar '"') + +mkEsc :: Char -> Char -> ShowS +mkEsc q s = case s of + _ | s == q -> showChar '\\' . showChar s + '\\'-> showString "\\\\" + '\n' -> showString "\\n" + '\t' -> showString "\\t" + _ -> showChar s + +prPrec :: Int -> Int -> Doc -> Doc +prPrec i j = if j<i then parenth else id + + +instance Print Integer where + prt _ x = doc (shows x) + + +instance Print Double where + prt _ x = doc (shows x) + + +instance Print (Tree c) where + prt _i e = case e of + Module imports decls -> prPrec _i 0 (concatD [prt 0 imports , prt 0 decls]) + Import i -> prPrec _i 0 (concatD [doc (showString "import") , prt 0 i]) + DataDecl i exp consdecls -> prPrec _i 0 (concatD [doc (showString "data") , prt 0 i , doc (showString ":") , prt 0 exp , doc (showString "where") , doc (showString "{") , prt 0 consdecls , doc (showString "}")]) + TypeDecl i exp -> prPrec _i 0 (concatD [prt 0 i , doc (showString ":") , prt 0 exp]) + ValueDecl i patterns guard exp -> prPrec _i 0 (concatD [prt 0 i , prt 0 patterns , prt 0 guard , doc (showString "=") , prt 0 exp]) + DeriveDecl i0 i1 -> prPrec _i 0 (concatD [doc (showString "derive") , prt 0 i0 , prt 0 i1]) + ConsDecl i exp -> prPrec _i 0 (concatD [prt 0 i , doc (showString ":") , prt 0 exp]) + GuardExp exp -> prPrec _i 0 (concatD [doc (showString "|") , prt 1 exp]) + GuardNo -> prPrec _i 0 (concatD []) + POr pattern0 pattern1 -> prPrec _i 0 (concatD [prt 1 pattern0 , doc (showString "||") , prt 0 pattern1]) + PListCons pattern0 pattern1 -> prPrec _i 1 (concatD [prt 2 pattern0 , doc (showString "::") , prt 1 pattern1]) + PConsTop i pattern patterns -> prPrec _i 2 (concatD [prt 0 i , prt 3 pattern , prt 0 patterns]) + PCons i patterns -> prPrec _i 3 (concatD [doc (showString "(") , prt 0 i , prt 0 patterns , doc (showString ")")]) + PRec fieldpatterns -> prPrec _i 3 (concatD [doc (showString "rec") , doc (showString "{") , prt 0 fieldpatterns , doc (showString "}")]) + PEmptyList -> prPrec _i 3 (concatD [doc (showString "[") , doc (showString "]")]) + PList commapatterns -> prPrec _i 3 (concatD [doc (showString "[") , prt 0 commapatterns , doc (showString "]")]) + PTuple commapattern commapatterns -> prPrec _i 3 (concatD [doc (showString "(") , prt 0 commapattern , doc (showString ",") , prt 0 commapatterns , doc (showString ")")]) + PStr str -> prPrec _i 3 (concatD [prt 0 str]) + PInt n -> prPrec _i 3 (concatD [prt 0 n]) + PVar i -> prPrec _i 3 (concatD [prt 0 i]) + PWild -> prPrec _i 3 (concatD [doc (showString "_")]) + CommaPattern pattern -> prPrec _i 0 (concatD [prt 0 pattern]) + FieldPattern i pattern -> prPrec _i 0 (concatD [prt 0 i , doc (showString "=") , prt 0 pattern]) + EPi varorwild exp0 exp1 -> prPrec _i 0 (concatD [doc (showString "(") , prt 0 varorwild , doc (showString ":") , prt 0 exp0 , doc (showString ")") , doc (showString "->") , prt 0 exp1]) + EPiNoVar exp0 exp1 -> prPrec _i 0 (concatD [prt 1 exp0 , doc (showString "->") , prt 0 exp1]) + EAbs varorwild exp -> prPrec _i 1 (concatD [doc (showString "\\") , prt 0 varorwild , doc (showString "->") , prt 1 exp]) + ELet letdefs exp -> prPrec _i 1 (concatD [doc (showString "let") , doc (showString "{") , prt 0 letdefs , doc (showString "}") , doc (showString "in") , prt 1 exp]) + ECase exp cases -> prPrec _i 1 (concatD [doc (showString "case") , prt 0 exp , doc (showString "of") , doc (showString "{") , prt 0 cases , doc (showString "}")]) + EIf exp0 exp1 exp2 -> prPrec _i 1 (concatD [doc (showString "if") , prt 0 exp0 , doc (showString "then") , prt 0 exp1 , doc (showString "else") , prt 1 exp2]) + EDo binds exp -> prPrec _i 1 (concatD [doc (showString "do") , doc (showString "{") , prt 0 binds , prt 0 exp , doc (showString "}")]) + EBind exp0 exp1 -> prPrec _i 3 (concatD [prt 3 exp0 , doc (showString ">>=") , prt 4 exp1]) + EBindC exp0 exp1 -> prPrec _i 3 (concatD [prt 3 exp0 , doc (showString ">>") , prt 4 exp1]) + EOr exp0 exp1 -> prPrec _i 4 (concatD [prt 5 exp0 , doc (showString "||") , prt 4 exp1]) + EAnd exp0 exp1 -> prPrec _i 5 (concatD [prt 6 exp0 , doc (showString "&&") , prt 5 exp1]) + EEq exp0 exp1 -> prPrec _i 6 (concatD [prt 7 exp0 , doc (showString "==") , prt 7 exp1]) + ENe exp0 exp1 -> prPrec _i 6 (concatD [prt 7 exp0 , doc (showString "/=") , prt 7 exp1]) + ELt exp0 exp1 -> prPrec _i 6 (concatD [prt 7 exp0 , doc (showString "<") , prt 7 exp1]) + ELe exp0 exp1 -> prPrec _i 6 (concatD [prt 7 exp0 , doc (showString "<=") , prt 7 exp1]) + EGt exp0 exp1 -> prPrec _i 6 (concatD [prt 7 exp0 , doc (showString ">") , prt 7 exp1]) + EGe exp0 exp1 -> prPrec _i 6 (concatD [prt 7 exp0 , doc (showString ">=") , prt 7 exp1]) + EListCons exp0 exp1 -> prPrec _i 7 (concatD [prt 8 exp0 , doc (showString "::") , prt 7 exp1]) + EAdd exp0 exp1 -> prPrec _i 8 (concatD [prt 8 exp0 , doc (showString "+") , prt 9 exp1]) + ESub exp0 exp1 -> prPrec _i 8 (concatD [prt 8 exp0 , doc (showString "-") , prt 9 exp1]) + EMul exp0 exp1 -> prPrec _i 9 (concatD [prt 9 exp0 , doc (showString "*") , prt 10 exp1]) + EDiv exp0 exp1 -> prPrec _i 9 (concatD [prt 9 exp0 , doc (showString "/") , prt 10 exp1]) + EMod exp0 exp1 -> prPrec _i 9 (concatD [prt 9 exp0 , doc (showString "%") , prt 10 exp1]) + ENeg exp -> prPrec _i 10 (concatD [doc (showString "-") , prt 10 exp]) + EApp exp0 exp1 -> prPrec _i 11 (concatD [prt 11 exp0 , prt 12 exp1]) + EProj exp i -> prPrec _i 12 (concatD [prt 12 exp , doc (showString ".") , prt 0 i]) + ERecType fieldtypes -> prPrec _i 13 (concatD [doc (showString "sig") , doc (showString "{") , prt 0 fieldtypes , doc (showString "}")]) + ERec fieldvalues -> prPrec _i 13 (concatD [doc (showString "rec") , doc (showString "{") , prt 0 fieldvalues , doc (showString "}")]) + EEmptyList -> prPrec _i 13 (concatD [doc (showString "[") , doc (showString "]")]) + EList exps -> prPrec _i 13 (concatD [doc (showString "[") , prt 0 exps , doc (showString "]")]) + ETuple exp exps -> prPrec _i 13 (concatD [doc (showString "(") , prt 0 exp , doc (showString ",") , prt 0 exps , doc (showString ")")]) + EVar i -> prPrec _i 13 (concatD [prt 0 i]) + EType -> prPrec _i 13 (concatD [doc (showString "Type")]) + EStr str -> prPrec _i 13 (concatD [prt 0 str]) + EInteger n -> prPrec _i 13 (concatD [prt 0 n]) + EDouble d -> prPrec _i 13 (concatD [prt 0 d]) + EMeta -> prPrec _i 13 (concatD [doc (showString "?")]) + VVar i -> prPrec _i 0 (concatD [prt 0 i]) + VWild -> prPrec _i 0 (concatD [doc (showString "_")]) + LetDef i exp -> prPrec _i 0 (concatD [prt 0 i , doc (showString "=") , prt 0 exp]) + Case pattern guard exp -> prPrec _i 0 (concatD [prt 0 pattern , prt 0 guard , doc (showString "->") , prt 0 exp]) + BindVar varorwild exp -> prPrec _i 0 (concatD [prt 0 varorwild , doc (showString "<-") , prt 0 exp]) + BindNoVar exp -> prPrec _i 0 (concatD [prt 0 exp]) + FieldType i exp -> prPrec _i 0 (concatD [prt 0 i , doc (showString ":") , prt 0 exp]) + FieldValue i exp -> prPrec _i 0 (concatD [prt 0 i , doc (showString "=") , prt 0 exp]) + Ident str -> prPrec _i 0 (doc (showString str)) + +instance Print [Import] where + prt _ es = case es of + [] -> (concatD []) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [Decl] where + prt _ es = case es of + [] -> (concatD []) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [ConsDecl] where + prt _ es = case es of + [] -> (concatD []) + [x] -> (concatD [prt 0 x]) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [CommaPattern] where + prt _ es = case es of + [x] -> (concatD [prt 0 x]) + x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs]) +instance Print [Pattern] where + prt _ es = case es of + [] -> (concatD []) + x:xs -> (concatD [prt 3 x , prt 0 xs]) +instance Print [FieldPattern] where + prt _ es = case es of + [] -> (concatD []) + [x] -> (concatD [prt 0 x]) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [LetDef] where + prt _ es = case es of + [] -> (concatD []) + [x] -> (concatD [prt 0 x]) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [Case] where + prt _ es = case es of + [] -> (concatD []) + [x] -> (concatD [prt 0 x]) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [Bind] where + prt _ es = case es of + [] -> (concatD []) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [FieldType] where + prt _ es = case es of + [] -> (concatD []) + [x] -> (concatD [prt 0 x]) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [FieldValue] where + prt _ es = case es of + [] -> (concatD []) + [x] -> (concatD [prt 0 x]) + x:xs -> (concatD [prt 0 x , doc (showString ";") , prt 0 xs]) +instance Print [Exp] where + prt _ es = case es of + [x] -> (concatD [prt 0 x]) + x:xs -> (concatD [prt 0 x , doc (showString ",") , prt 0 xs]) diff --git a/src/Transfer/Syntax/ResolveLayout.hs b/src/Transfer/Syntax/ResolveLayout.hs new file mode 100644 index 000000000..9d7ab607a --- /dev/null +++ b/src/Transfer/Syntax/ResolveLayout.hs @@ -0,0 +1,29 @@ +module Main where + +import System.Environment (getArgs) + +import Transfer.Syntax.Lex +import Transfer.Syntax.Layout + +prTokens :: [Token] -> String +prTokens = prTokens_ 1 1 + where + prTokens_ _ _ [] = "" + prTokens_ l c (t@(PT (Pn _ l' c') _):ts) = + replicate (l'-l) '\n' + ++ replicate (if l' == l then c'-c else c'-1) ' ' + ++ s ++ prTokens_ l' (c'+length s) ts + where s = prToken t +-- prTokens_ l c (Err p:ts) = + +layout :: String -> String +layout s = prTokens ts' +-- ++ "\n" ++ show ts' + where ts = tokens s + ts' = resolveLayout True ts + +main :: IO () +main = do args <- getArgs + case args of + [] -> getContents >>= putStrLn . layout + fs -> mapM_ (\f -> readFile f >>= putStrLn . layout) fs diff --git a/src/Transfer/Syntax/Skel.hs b/src/Transfer/Syntax/Skel.hs new file mode 100644 index 000000000..b2376478b --- /dev/null +++ b/src/Transfer/Syntax/Skel.hs @@ -0,0 +1,200 @@ +module Transfer.Syntax.Skel where + +-- Haskell module generated by the BNF converter + +import Transfer.Syntax.Abs +import Transfer.ErrM +type Result = Err String + +failure :: Show a => a -> Result +failure x = Bad $ "Undefined case: " ++ show x + +transTree :: Tree c -> Result +transTree t = case t of + Module imports decls -> failure t + Import i -> failure t + DataDecl i exp consdecls -> failure t + TypeDecl i exp -> failure t + ValueDecl i patterns guard exp -> failure t + DeriveDecl i0 i1 -> failure t + ConsDecl i exp -> failure t + GuardExp exp -> failure t + GuardNo -> failure t + POr pattern0 pattern1 -> failure t + PListCons pattern0 pattern1 -> failure t + PConsTop i pattern patterns -> failure t + PCons i patterns -> failure t + PRec fieldpatterns -> failure t + PEmptyList -> failure t + PList commapatterns -> failure t + PTuple commapattern commapatterns -> failure t + PStr str -> failure t + PInt n -> failure t + PVar i -> failure t + PWild -> failure t + CommaPattern pattern -> failure t + FieldPattern i pattern -> failure t + EPi varorwild exp0 exp1 -> failure t + EPiNoVar exp0 exp1 -> failure t + EAbs varorwild exp -> failure t + ELet letdefs exp -> failure t + ECase exp cases -> failure t + EIf exp0 exp1 exp2 -> failure t + EDo binds exp -> failure t + EBind exp0 exp1 -> failure t + EBindC exp0 exp1 -> failure t + EOr exp0 exp1 -> failure t + EAnd exp0 exp1 -> failure t + EEq exp0 exp1 -> failure t + ENe exp0 exp1 -> failure t + ELt exp0 exp1 -> failure t + ELe exp0 exp1 -> failure t + EGt exp0 exp1 -> failure t + EGe exp0 exp1 -> failure t + EListCons exp0 exp1 -> failure t + EAdd exp0 exp1 -> failure t + ESub exp0 exp1 -> failure t + EMul exp0 exp1 -> failure t + EDiv exp0 exp1 -> failure t + EMod exp0 exp1 -> failure t + ENeg exp -> failure t + EApp exp0 exp1 -> failure t + EProj exp i -> failure t + ERecType fieldtypes -> failure t + ERec fieldvalues -> failure t + EEmptyList -> failure t + EList exps -> failure t + ETuple exp exps -> failure t + EVar i -> failure t + EType -> failure t + EStr str -> failure t + EInteger n -> failure t + EDouble d -> failure t + EMeta -> failure t + VVar i -> failure t + VWild -> failure t + LetDef i exp -> failure t + Case pattern guard exp -> failure t + BindVar varorwild exp -> failure t + BindNoVar exp -> failure t + FieldType i exp -> failure t + FieldValue i exp -> failure t + Ident str -> failure t + +transModule :: Module -> Result +transModule t = case t of + Module imports decls -> failure t + +transImport :: Import -> Result +transImport t = case t of + Import i -> failure t + +transDecl :: Decl -> Result +transDecl t = case t of + DataDecl i exp consdecls -> failure t + TypeDecl i exp -> failure t + ValueDecl i patterns guard exp -> failure t + DeriveDecl i0 i1 -> failure t + +transConsDecl :: ConsDecl -> Result +transConsDecl t = case t of + ConsDecl i exp -> failure t + +transGuard :: Guard -> Result +transGuard t = case t of + GuardExp exp -> failure t + GuardNo -> failure t + +transPattern :: Pattern -> Result +transPattern t = case t of + POr pattern0 pattern1 -> failure t + PListCons pattern0 pattern1 -> failure t + PConsTop i pattern patterns -> failure t + PCons i patterns -> failure t + PRec fieldpatterns -> failure t + PEmptyList -> failure t + PList commapatterns -> failure t + PTuple commapattern commapatterns -> failure t + PStr str -> failure t + PInt n -> failure t + PVar i -> failure t + PWild -> failure t + +transCommaPattern :: CommaPattern -> Result +transCommaPattern t = case t of + CommaPattern pattern -> failure t + +transFieldPattern :: FieldPattern -> Result +transFieldPattern t = case t of + FieldPattern i pattern -> failure t + +transExp :: Exp -> Result +transExp t = case t of + EPi varorwild exp0 exp1 -> failure t + EPiNoVar exp0 exp1 -> failure t + EAbs varorwild exp -> failure t + ELet letdefs exp -> failure t + ECase exp cases -> failure t + EIf exp0 exp1 exp2 -> failure t + EDo binds exp -> failure t + EBind exp0 exp1 -> failure t + EBindC exp0 exp1 -> failure t + EOr exp0 exp1 -> failure t + EAnd exp0 exp1 -> failure t + EEq exp0 exp1 -> failure t + ENe exp0 exp1 -> failure t + ELt exp0 exp1 -> failure t + ELe exp0 exp1 -> failure t + EGt exp0 exp1 -> failure t + EGe exp0 exp1 -> failure t + EListCons exp0 exp1 -> failure t + EAdd exp0 exp1 -> failure t + ESub exp0 exp1 -> failure t + EMul exp0 exp1 -> failure t + EDiv exp0 exp1 -> failure t + EMod exp0 exp1 -> failure t + ENeg exp -> failure t + EApp exp0 exp1 -> failure t + EProj exp i -> failure t + ERecType fieldtypes -> failure t + ERec fieldvalues -> failure t + EEmptyList -> failure t + EList exps -> failure t + ETuple exp exps -> failure t + EVar i -> failure t + EType -> failure t + EStr str -> failure t + EInteger n -> failure t + EDouble d -> failure t + EMeta -> failure t + +transVarOrWild :: VarOrWild -> Result +transVarOrWild t = case t of + VVar i -> failure t + VWild -> failure t + +transLetDef :: LetDef -> Result +transLetDef t = case t of + LetDef i exp -> failure t + +transCase :: Case -> Result +transCase t = case t of + Case pattern guard exp -> failure t + +transBind :: Bind -> Result +transBind t = case t of + BindVar varorwild exp -> failure t + BindNoVar exp -> failure t + +transFieldType :: FieldType -> Result +transFieldType t = case t of + FieldType i exp -> failure t + +transFieldValue :: FieldValue -> Result +transFieldValue t = case t of + FieldValue i exp -> failure t + +transIdent :: Ident -> Result +transIdent t = case t of + Ident str -> failure t + diff --git a/src/Transfer/Syntax/Syntax.cf b/src/Transfer/Syntax/Syntax.cf new file mode 100644 index 000000000..7429e34f9 --- /dev/null +++ b/src/Transfer/Syntax/Syntax.cf @@ -0,0 +1,147 @@ +entrypoints Module, Exp ; + +layout "let", "where", "of","rec", "sig", "do" ; +layout stop "in" ; +layout toplevel ; + +comment "--" ; +comment "{-" "-}" ; + +Module. Module ::= [Import] [Decl] ; + +Import. Import ::= "import" Ident ; +-- FIXME: this is terminator to ensure that the pretty printer +-- produces a semicolon after the last import. This could cause +-- problems in a program which only does imports and uses layout syntax. +terminator Import ";" ; + +DataDecl. Decl ::= "data" Ident ":" Exp "where" "{" [ConsDecl] "}" ; +TypeDecl. Decl ::= Ident ":" Exp ; +ValueDecl. Decl ::= Ident [Pattern] Guard "=" Exp ; +DeriveDecl. Decl ::= "derive" Ident Ident ; +terminator Decl ";" ; + +ConsDecl. ConsDecl ::= Ident ":" Exp ; +separator ConsDecl ";" ; + +GuardExp. Guard ::= "|" Exp1 ; +GuardNo. Guard ::= ; + +-- Disjunctive patterns. +POr. Pattern ::= Pattern1 "||" Pattern ; + +-- List constructor patterns +PListCons. Pattern1 ::= Pattern2 "::" Pattern1 ; + +-- Hack: constructor applied to at least one pattern +-- this is to separate it from variable patterns +PConsTop. Pattern2 ::= Ident Pattern3 [Pattern] ; + +-- Real constructor pattern +internal PCons. Pattern3 ::= "(" Ident [Pattern] ")" ; + +-- Record patterns +PRec. Pattern3 ::= "rec" "{" [FieldPattern] "}"; + +-- List patterns +PEmptyList. Pattern3 ::= "[" "]" ; +PList. Pattern3 ::= "[" [CommaPattern] "]" ; + +-- Tuple patterns +PTuple. Pattern3 ::= "(" CommaPattern "," [CommaPattern] ")" ; + +-- hack to allow a different [Pattern] from the one defined +-- for constructor patterns +CommaPattern. CommaPattern ::= Pattern ; +separator nonempty CommaPattern "," ; + +-- String literal patterns +PStr. Pattern3 ::= String ; +-- Integer literal patterns +PInt. Pattern3 ::= Integer ; +-- Variable patterns +PVar. Pattern3 ::= Ident ; +-- Wild card patterns +PWild. Pattern3 ::= "_" ; + +coercions Pattern 3 ; + +[]. [Pattern] ::= ; +(:). [Pattern] ::= Pattern3 [Pattern] ; + +FieldPattern. FieldPattern ::= Ident "=" Pattern ; +separator FieldPattern ";" ; + +-- Function types have precedence < 1 to keep the +-- "->" from conflicting with the "->" after guards +EPi. Exp ::= "(" VarOrWild ":" Exp ")" "->" Exp ; +EPiNoVar. Exp ::= Exp1 "->" Exp ; +VVar. VarOrWild ::= Ident ; +VWild. VarOrWild ::= "_" ; + +EAbs. Exp1 ::= "\\" VarOrWild "->" Exp1 ; +ELet. Exp1 ::= "let" "{" [LetDef] "}" "in" Exp1 ; +LetDef. LetDef ::= Ident "=" Exp ; +separator LetDef ";" ; +ECase. Exp1 ::= "case" Exp "of" "{" [Case] "}" ; +Case. Case ::= Pattern Guard "->" Exp ; +separator Case ";" ; +EIf. Exp1 ::= "if" Exp "then" Exp "else" Exp1 ; +EDo. Exp1 ::= "do" "{" [Bind] Exp "}" ; +BindVar. Bind ::= VarOrWild "<-" Exp ; +BindNoVar. Bind ::= Exp ; +terminator Bind ";" ; + +EBind. Exp3 ::= Exp3 ">>=" Exp4 ; +EBindC. Exp3 ::= Exp3 ">>" Exp4 ; + +EOr. Exp4 ::= Exp5 "||" Exp4 ; + +EAnd. Exp5 ::= Exp6 "&&" Exp5 ; + +EEq. Exp6 ::= Exp7 "==" Exp7 ; +ENe. Exp6 ::= Exp7 "/=" Exp7 ; +ELt. Exp6 ::= Exp7 "<" Exp7 ; +ELe. Exp6 ::= Exp7 "<=" Exp7 ; +EGt. Exp6 ::= Exp7 ">" Exp7 ; +EGe. Exp6 ::= Exp7 ">=" Exp7 ; + +EListCons. Exp7 ::= Exp8 "::" Exp7 ; + +EAdd. Exp8 ::= Exp8 "+" Exp9 ; +ESub. Exp8 ::= Exp8 "-" Exp9 ; + +EMul. Exp9 ::= Exp9 "*" Exp10 ; +EDiv. Exp9 ::= Exp9 "/" Exp10 ; +EMod. Exp9 ::= Exp9 "%" Exp10 ; + +ENeg. Exp10 ::= "-" Exp10 ; + +EApp. Exp11 ::= Exp11 Exp12 ; + +EProj. Exp12 ::= Exp12 "." Ident ; + +ERecType. Exp13 ::= "sig" "{" [FieldType] "}" ; +FieldType. FieldType ::= Ident ":" Exp ; +separator FieldType ";" ; + +ERec. Exp13 ::= "rec" "{" [FieldValue] "}" ; +FieldValue.FieldValue ::= Ident "=" Exp ; +separator FieldValue ";" ; + +EEmptyList.Exp13 ::= "[" "]" ; +EList. Exp13 ::= "[" [Exp] "]" ; + +-- n-tuple, where n>=2 +ETuple. Exp13 ::= "(" Exp "," [Exp] ")" ; + +EVar. Exp13 ::= Ident ; +EType. Exp13 ::= "Type" ; +EStr. Exp13 ::= String ; +EInteger. Exp13 ::= Integer ; +EDouble. Exp13 ::= Double ; +EMeta. Exp13 ::= "?" ; + +coercions Exp 13 ; + +separator nonempty Exp "," ; diff --git a/src/Transfer/Syntax/Test.hs b/src/Transfer/Syntax/Test.hs new file mode 100644 index 000000000..3f5fab7ad --- /dev/null +++ b/src/Transfer/Syntax/Test.hs @@ -0,0 +1,58 @@ +-- automatically generated by BNF Converter +module Main where + + +import IO ( stdin, hGetContents ) +import System ( getArgs, getProgName ) + +import Transfer.Syntax.Lex +import Transfer.Syntax.Par +import Transfer.Syntax.Skel +import Transfer.Syntax.Print +import Transfer.Syntax.Abs +import Transfer.Syntax.Layout + + + +import Transfer.ErrM + +type ParseFun a = [Token] -> Err a + +myLLexer = resolveLayout True . myLexer + +type Verbosity = Int + +putStrV :: Verbosity -> String -> IO () +putStrV v s = if v > 1 then putStrLn s else return () + +runFile :: (Print a, Show a) => Verbosity -> ParseFun a -> FilePath -> IO () +runFile v p f = putStrLn f >> readFile f >>= run v p + +run :: (Print a, Show a) => Verbosity -> ParseFun a -> String -> IO () +run v p s = let ts = myLLexer s in case p ts of + Bad s -> do putStrLn "\nParse Failed...\n" + putStrV v "Tokens:" + putStrV v $ show ts + putStrLn s + Ok tree -> do putStrLn "\nParse Successful!" + showTree v tree + + + +showTree :: (Show a, Print a) => Int -> a -> IO () +showTree v tree + = do + putStrV v $ "\n[Abstract Syntax]\n\n" ++ show tree + putStrV v $ "\n[Linearized tree]\n\n" ++ printTree tree + +main :: IO () +main = do args <- getArgs + case args of + [] -> hGetContents stdin >>= run 2 pModule + "-s":fs -> mapM_ (runFile 0 pModule) fs + fs -> mapM_ (runFile 2 pModule) fs + + + + + |