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|
module AbstractCurry.Transform where
import AbstractCurry.Types
import AbstractCurry.Select
import List (nub, union)
type Update a b = (b -> b) -> a -> a
trCProg :: (String -> [String] -> [CTypeDecl] -> [CFuncDecl] -> [COpDecl] -> a)
-> CurryProg -> a
trCProg prog (CurryProg name imps types funcs ops) =
prog name imps types funcs ops
updCProg :: (String -> String) ->
([String] -> [String]) ->
([CTypeDecl] -> [CTypeDecl]) ->
([CFuncDecl] -> [CFuncDecl]) ->
([COpDecl] -> [COpDecl]) -> CurryProg -> CurryProg
updCProg fn fi ft ff fo = trCProg prog
where
prog name imps types funcs ops =
CurryProg (fn name) (fi imps) (ft types) (ff funcs) (fo ops)
updCProgName :: Update CurryProg String
updCProgName f = updCProg f id id id id
trCTypeDecl :: (QName -> CVisibility -> [CTVarIName] -> [CConsDecl] -> a)
-> (QName -> CVisibility -> [CTVarIName] -> CTypeExpr -> a)
-> (QName -> CVisibility -> [CTVarIName] -> CConsDecl -> a)
-> CTypeDecl -> a
trCTypeDecl typ _ _ (CType name vis params cs) = typ name vis params cs
trCTypeDecl _ tsyn _ (CTypeSyn name vis params syn) = tsyn name vis params syn
trCTypeDecl _ _ tntyp (CNewType name vis params nt) = tntyp name vis params nt
updCTypeDecl :: (QName -> QName)
-> (CVisibility -> CVisibility)
-> ([CTVarIName] -> [CTVarIName])
-> ([CConsDecl] -> [CConsDecl])
-> (CTypeExpr -> CTypeExpr)
-> (CConsDecl -> CConsDecl)
-> CTypeDecl -> CTypeDecl
updCTypeDecl fn fv fp fc fs ft = trCTypeDecl typ tsyn tntyp
where
typ name vis params cs = CType (fn name) (fv vis) (fp params) (fc cs)
tsyn name vis params syn = CTypeSyn (fn name) (fv vis) (fp params) (fs syn)
tntyp name vis params ntyp = CNewType (fn name) (fv vis) (fp params) (ft ntyp)
updCTypeDeclName :: Update CTypeDecl QName
updCTypeDeclName f = updCTypeDecl f id id id id id
trCConsDecl :: (QName -> CVisibility -> [CTypeExpr] -> a)
-> (QName -> CVisibility -> [CFieldDecl] -> a)
-> CConsDecl -> a
trCConsDecl cons _ (CCons name vis args) = cons name vis args
trCConsDecl _ rec (CRecord name vis args) = rec name vis args
updCConsDecl :: (QName -> QName)
-> (CVisibility -> CVisibility)
-> ([CTypeExpr] -> [CTypeExpr])
-> ([CFieldDecl] -> [CFieldDecl])
-> CConsDecl -> CConsDecl
updCConsDecl fn fv fts ffs = trCConsDecl cons rec
where
cons name vis args = CCons (fn name) (fv vis) (fts args)
rec name vis args = CRecord (fn name) (fv vis) (ffs args)
updCConsDeclName :: Update CConsDecl QName
updCConsDeclName f = updCConsDecl f id id id
trCFieldDecl :: (QName -> CVisibility -> CTypeExpr -> a)
-> CFieldDecl -> a
trCFieldDecl field (CField name vis texp) = field name vis texp
updCFieldDecl :: (QName -> QName)
-> (CVisibility -> CVisibility)
-> (CTypeExpr -> CTypeExpr)
-> CFieldDecl -> CFieldDecl
updCFieldDecl fn fv ft = trCFieldDecl field
where
field name vis texp = CField (fn name) (fv vis) (ft texp)
updCFieldDeclName :: Update CFieldDecl QName
updCFieldDeclName f = updCFieldDecl f id id
trCTypeExpr :: (CTVarIName -> a)
-> (QName -> [a] -> a)
-> (a -> a -> a)
-> CTypeExpr -> a
trCTypeExpr tvar tcons functype texp = trTE texp
where
trTE (CTVar n) = tvar n
trTE (CTCons name args) = tcons name (map trTE args)
trTE (CFuncType from to) = functype (trTE from) (trTE to)
updTConsApp :: (QName -> [CTypeExpr] -> CTypeExpr) -> CTypeExpr -> CTypeExpr
updTConsApp tcons = trCTypeExpr CTVar tcons CFuncType
trCOpDecl :: (QName -> CFixity -> Int -> a) -> COpDecl -> a
trCOpDecl op (COp name fix prec) = op name fix prec
updCOpDecl :: (QName -> QName) -> (CFixity -> CFixity) -> (Int -> Int)
-> COpDecl -> COpDecl
updCOpDecl fn ff fp = trCOpDecl op
where
op name fix prec = COp (fn name) (ff fix) (fp prec)
updCOpName :: Update COpDecl QName
updCOpName f = updCOpDecl f id id
trCFuncDecl :: (String -> QName -> Int -> CVisibility -> CTypeExpr -> [CRule] -> a)
-> CFuncDecl -> a
trCFuncDecl func (CFunc name arity vis t rs) = func "" name arity vis t rs
trCFuncDecl func (CmtFunc cm name arity vis t rs) = func cm name arity vis t rs
updCFuncDecl :: (String -> String)
-> (QName -> QName)
-> (Int -> Int)
-> (CVisibility -> CVisibility)
-> (CTypeExpr -> CTypeExpr)
-> ([CRule] -> [CRule])
-> CFuncDecl -> CFuncDecl
updCFuncDecl fc fn fa fv ft fr = trCFuncDecl func
where
func cmt name arity vis t rules =
if null cmt
then CFunc (fn name) (fa arity) (fv vis) (ft t) (fr rules)
else CmtFunc (fc cmt) (fn name) (fa arity) (fv vis) (ft t) (fr rules)
trCRule :: ([CPattern] -> CRhs -> a) -> CRule -> a
trCRule rule (CRule pats rhs) = rule pats rhs
updCRule :: ([CPattern] -> [CPattern])
-> (CRhs -> CRhs)
-> CRule -> CRule
updCRule fp fr = trCRule rule
where
rule pats rhs = CRule (fp pats) (fr rhs)
trCRhs :: (CExpr -> [CLocalDecl] -> a)
-> ([(CExpr, CExpr)] -> [CLocalDecl] -> a)
-> CRhs -> a
trCRhs srhs _ (CSimpleRhs exp locals) = srhs exp locals
trCRhs _ grhs (CGuardedRhs gexps locals) = grhs gexps locals
updCRhs :: (CExpr -> CExpr)
-> ([(CExpr, CExpr)] -> [(CExpr, CExpr)])
-> ([CLocalDecl] -> [CLocalDecl])
-> CRhs -> CRhs
updCRhs fe fg fl = trCRhs srhs grhs
where
srhs exp locals = CSimpleRhs (fe exp) (fl locals)
grhs gexps locals = CGuardedRhs (fg gexps) (fl locals)
trCLocalDecl :: (CFuncDecl -> a)
-> (CPattern -> CRhs -> a)
-> ([CVarIName] -> a)
-> CLocalDecl -> a
trCLocalDecl lfun _ _ (CLocalFunc fdecl) = lfun fdecl
trCLocalDecl _ lpat _ (CLocalPat pat rhs) = lpat pat rhs
trCLocalDecl _ _ vars (CLocalVars vs) = vars vs
updCLocalDecl :: (CFuncDecl -> CFuncDecl)
-> (CPattern -> CPattern)
-> (CRhs -> CRhs)
-> ([CVarIName] -> [CVarIName])
-> CLocalDecl -> CLocalDecl
updCLocalDecl ff fp fr fv = trCLocalDecl lfun lpat lvars
where
lfun fdecl = CLocalFunc (ff fdecl)
lpat pat rhs = CLocalPat (fp pat) (fr rhs)
lvars vars = CLocalVars (fv vars)
trCPattern :: (CVarIName -> a)
-> (CLiteral -> a)
-> (QName -> [a] -> a)
-> (CVarIName -> a -> a)
-> (QName -> [a] -> a)
-> (QName -> [CField a] -> a)
-> CPattern -> a
trCPattern fv fl fc fa ff fr pattern = trP pattern
where
trP (CPVar pvar) = fv pvar
trP (CPLit lit) = fl lit
trP (CPComb c pats) = fc c (map trP pats)
trP (CPAs v pat) = fa v (trP pat)
trP (CPFuncComb fn pats) = ff fn (map trP pats)
trP (CPLazy pat) = trP pat
trP (CPRecord r fs) = fr r (map (\(n,p) -> (n,trP p)) fs)
updCPattern :: (CVarIName -> CVarIName)
-> (CLiteral -> CLiteral)
-> (QName -> QName)
-> CPattern -> CPattern
updCPattern fv fl fn = trCPattern pvar plit pcomb pas pfcomb prec
where
pvar var = CPVar (fv var)
plit lit = CPLit (fl lit)
pcomb c pats = CPComb (fn c) (map (updCPattern fv fl fn) pats)
pas v pat = CPAs (fv v) (updCPattern fv fl fn pat)
pfcomb f pats = CPFuncComb (fn f) (map (updCPattern fv fl fn) pats)
prec r fields = CPRecord (fn r)
(map (\ (n,p) -> (fn n, updCPattern fv fl fn p)) fields)
trExpr :: (CVarIName -> a)
-> (CLiteral -> a)
-> (QName -> a)
-> (a -> a -> a)
-> ([CPattern] -> a -> a)
-> ([CLocalDecl] -> a -> a)
-> ([CStatement] -> a)
-> (a -> [CStatement] -> a)
-> (CCaseType -> a -> [(CPattern, CRhs)] -> a)
-> (a -> CTypeExpr -> a)
-> (QName -> [CField a] -> a)
-> (a -> [CField a] -> a)
-> CExpr -> a
trExpr var lit sym app lam clet cdo lcomp cas typ rcon rupd exp = trE exp
where
trE (CVar n) = var n
trE (CLit l) = lit l
trE (CSymbol n) = sym n
trE (CApply e1 e2) = app (trE e1) (trE e2)
trE (CLambda pats e) = lam pats (trE e)
trE (CLetDecl ls e) = clet ls (trE e)
trE (CDoExpr stm) = cdo stm
trE (CListComp e stm) = lcomp (trE e) stm
trE (CCase ct e branches) = cas ct (trE e) branches
trE (CTyped e te) = typ (trE e) te
trE (CRecConstr rn fds) = rcon rn (map (\ (lb,e) -> (lb, trE e)) fds)
trE (CRecUpdate e fds) = rupd (trE e) (map (\ (lb,v) -> (lb, trE v)) fds)
trCStatement :: (CExpr -> a)
-> (CPattern -> CExpr -> a)
-> ([CLocalDecl] -> a)
-> CStatement -> a
trCStatement sexp _ _ (CSExpr exp) = sexp exp
trCStatement _ spat _ (CSPat pat exp) = spat pat exp
trCStatement _ _ slet (CSLet locals) = slet locals
updCStatement :: (CExpr -> CExpr)
-> (CPattern -> CPattern)
-> (CLocalDecl -> CLocalDecl)
-> CStatement -> CStatement
updCStatement fe fp fd = trCStatement sexp spat slet
where
sexp exp = CSExpr (fe exp)
spat pat exp = CSPat (fp pat) (fe exp)
slet locals = CSLet (map fd locals)
renameCurryModule :: String -> CurryProg -> CurryProg
renameCurryModule newname prog =
updCProgName (const newname) (updQNamesInCProg rnm prog)
where
rnm mn@(mod,n) | mod == progName prog = (newname,n)
| otherwise = mn
updQNamesInCProg :: Update CurryProg QName
updQNamesInCProg f =
updCProg id
id
(map (updQNamesInCTypeDecl f))
(map (updQNamesInCFuncDecl f))
(map (updCOpName f))
updQNamesInCTypeDecl :: Update CTypeDecl QName
updQNamesInCTypeDecl f =
updCTypeDecl f id id
(map (updQNamesInCConsDecl f))
(updQNamesInCTypeExpr f)
(updQNamesInCConsDecl f)
updQNamesInCConsDecl :: Update CConsDecl QName
updQNamesInCConsDecl f =
updCConsDecl f id
(map (updQNamesInCTypeExpr f))
(map (updQNamesInCFieldDecl f))
updQNamesInCFieldDecl :: Update CFieldDecl QName
updQNamesInCFieldDecl f = updCFieldDecl f id (updQNamesInCTypeExpr f)
updQNamesInCTypeExpr :: (QName -> QName) -> CTypeExpr -> CTypeExpr
updQNamesInCTypeExpr f = updTConsApp (\name args -> CTCons (f name) args)
updQNamesInCFuncDecl :: Update CFuncDecl QName
updQNamesInCFuncDecl f =
updCFuncDecl id f id id (updQNamesInCTypeExpr f) (map (updQNamesInCRule f))
updQNamesInCRule :: Update CRule QName
updQNamesInCRule f =
updCRule (map (updQNamesInCPattern f))
(updQNamesInCRhs f)
updQNamesInCRhs :: Update CRhs QName
updQNamesInCRhs f =
updCRhs (updQNamesInCExpr f)
(map (\ (g,e) -> (updQNamesInCExpr f g, updQNamesInCExpr f e)))
(map (updQNamesInCLocalDecl f))
updQNamesInCLocalDecl :: Update CLocalDecl QName
updQNamesInCLocalDecl f =
updCLocalDecl (updQNamesInCFuncDecl f)
(updQNamesInCPattern f)
(updQNamesInCRhs f)
id
updQNamesInCPattern :: Update CPattern QName
updQNamesInCPattern f = updCPattern id id f
updQNamesInCStatement :: Update CStatement QName
updQNamesInCStatement f =
updCStatement (updQNamesInCExpr f)
(updQNamesInCPattern f)
(updQNamesInCLocalDecl f)
updQNamesInCExpr :: Update CExpr QName
updQNamesInCExpr f =
trExpr CVar CLit (CSymbol . f) CApply lam ldecl doexp lcomp ccase ctyped
reccon recupd
where
lam pats exp = CLambda (map (updQNamesInCPattern f) pats) exp
ldecl locals exp = CLetDecl (map (updQNamesInCLocalDecl f) locals) exp
doexp stms = CDoExpr (map (updQNamesInCStatement f) stms)
lcomp exp stms = CListComp exp (map (updQNamesInCStatement f) stms)
ccase ct exp bs = CCase ct exp
(map (\ (pat,rhs) -> (updQNamesInCPattern f pat, updQNamesInCRhs f rhs)) bs)
ctyped exp texp = CTyped exp (updQNamesInCTypeExpr f texp)
reccon rec fields = CRecConstr (f rec) (map (\ (l,e) -> (f l,e)) fields)
recupd exp fields = CRecUpdate exp (map (\ (l,e) -> (f l,e)) fields)
typesOfCurryProg :: CurryProg -> [QName]
typesOfCurryProg =
trCProg (\_ _ types funcs _ ->
foldr union [] (map (nub . typesOfCTypeDecl) types) ++
foldr union [] (map (nub . typesOfCFuncDecl) funcs))
typesOfCTypeDecl :: CTypeDecl -> [QName]
typesOfCTypeDecl =
trCTypeDecl (\qn _ _ cdecls -> qn : concatMap typesOfConsDecl cdecls)
(\qn _ _ texp -> qn : typesOfTypeExpr texp)
(\qn _ _ cdecl -> qn : typesOfConsDecl cdecl)
typesOfConsDecl :: CConsDecl -> [QName]
typesOfConsDecl =
trCConsDecl (\_ _ texps -> concatMap typesOfTypeExpr texps)
(\_ _ fddecls -> concatMap typesOfFieldDecl fddecls)
typesOfFieldDecl :: CFieldDecl -> [QName]
typesOfFieldDecl = trCFieldDecl (\_ _ texp -> typesOfTypeExpr texp)
typesOfTypeExpr :: CTypeExpr -> [QName]
typesOfTypeExpr = trCTypeExpr (\_ -> [])
(\qn targs -> qn : concat targs)
(++)
typesOfCFuncDecl :: CFuncDecl -> [QName]
typesOfCFuncDecl =
trCFuncDecl (\_ _ _ _ texp _ -> typesOfTypeExpr texp)
funcsOfCurryProg :: CurryProg -> [QName]
funcsOfCurryProg =
trCProg (\_ _ types funcs _ ->
foldr union [] (map (nub . funcsOfCTypeDecl) types) ++
foldr union [] (map (nub . funcsOfCFuncDecl) funcs))
funcsOfCTypeDecl :: CTypeDecl -> [QName]
funcsOfCTypeDecl =
trCTypeDecl (\_ _ _ cdecls -> concatMap funcsOfConsDecl cdecls)
(\_ _ _ _ -> [])
(\_ _ _ cdecl -> funcsOfConsDecl cdecl)
funcsOfConsDecl :: CConsDecl -> [QName]
funcsOfConsDecl =
trCConsDecl (\qn _ _ -> [qn])
(\qn _ fddecls -> qn : concatMap funcsOfFieldDecl fddecls)
funcsOfFieldDecl :: CFieldDecl -> [QName]
funcsOfFieldDecl = trCFieldDecl (\qn _ _ -> [qn])
funcsOfCFuncDecl :: CFuncDecl -> [QName]
funcsOfCFuncDecl =
trCFuncDecl (\_ _ _ _ _ rules -> concatMap funcsOfCRule rules)
funcsOfCRule :: CRule -> [QName]
funcsOfCRule = trCRule (\_ rhs -> funcsOfCRhs rhs)
funcsOfCRhs :: CRhs -> [QName]
funcsOfCRhs =
trCRhs (\e ldecls -> funcsOfExpr e ++ concatMap funcsOfLDecl ldecls)
(\gs ldecls -> concatMap (\ (g,e) -> funcsOfExpr g ++ funcsOfExpr e) gs
++ concatMap funcsOfLDecl ldecls)
funcsOfLDecl :: CLocalDecl -> [QName]
funcsOfLDecl = trCLocalDecl funcsOfCFuncDecl (const funcsOfCRhs) (const [])
funcsOfExpr :: CExpr -> [QName]
funcsOfExpr =
trExpr (const [])
(const [])
(\n -> [n])
(++)
(const id)
(\ldecls e -> concatMap funcsOfLDecl ldecls ++ e)
(concatMap funcsOfStat)
(\e stats -> e ++ concatMap funcsOfStat stats)
(\_ e brs -> e ++ concatMap (funcsOfCRhs . snd) brs)
(\e _ -> e)
(\_ fields -> concatMap snd fields)
(\e fields -> e ++ concatMap snd fields)
funcsOfStat :: CStatement -> [QName]
funcsOfStat = trCStatement funcsOfExpr
(const funcsOfExpr)
(concatMap funcsOfLDecl)
|