1 module CoqPass ( coqPassCoreToString, coqPassCoreToCore )
3 import qualified Unique
4 import qualified UniqSupply
5 import qualified MkCore
6 import qualified TysWiredIn
7 import qualified TysPrim
8 import qualified Outputable
9 import qualified PrelNames
10 import qualified OccName
12 import qualified Literal
14 import qualified TypeRep
15 import qualified DataCon
16 import qualified TyCon
17 import qualified Coercion
20 import qualified FastString
21 import qualified BasicTypes
22 import qualified DataCon
23 import qualified CoreSyn
24 import qualified CoreUtils
25 import qualified Class
26 import qualified Data.Char
27 import qualified Data.List
28 import qualified Data.Ord
29 import qualified Data.Typeable
30 import Data.Bits ((.&.), shiftL, (.|.))
31 import Prelude ( (++), (+), (==), Show, show, Char, (.), ($) )
32 import qualified Prelude
33 import qualified Debug.Trace
34 import qualified GHC.Base
35 import qualified System.IO
36 import qualified System.IO.Unsafe
38 getTyConTyVars :: TyCon.TyCon -> [Var.TyVar]
40 if TyCon.isFunTyCon tc
42 else if TyCon.isPrimTyCon tc
44 else TyCon.tyConTyVars tc
46 cmpAlts :: (CoreSyn.AltCon,[Var.Var],CoreSyn.Expr Var.Var) -> (CoreSyn.AltCon,[Var.Var],CoreSyn.Expr Var.Var) -> Data.Ord.Ordering
47 cmpAlts (CoreSyn.DEFAULT,_,_) _ = Data.Ord.LT
48 cmpAlts _ (CoreSyn.DEFAULT,_,_) = Data.Ord.GT
49 cmpAlts (a1,_,_) (a2,_,_) = Data.Ord.compare a2 a1
51 sortAlts :: [(CoreSyn.AltCon,[Var.Var],CoreSyn.Expr Var.Var)] -> [(CoreSyn.AltCon,[Var.Var],CoreSyn.Expr Var.Var)]
52 sortAlts x = Data.List.sortBy (\a b -> if a `CoreSyn.ltAlt` b then Data.Ord.LT else Data.Ord.GT) x
54 -- to do: this could be moved into Coq
55 coreVarToWeakVar :: Var.Var -> WeakVar
56 coreVarToWeakVar v | Id.isId v = WExprVar (WeakExprVar v (errOrFail (coreTypeToWeakType (Var.varType v))))
59 errOrFail (Error s) = Prelude.error s
60 coreVarToWeakVar v | Var.isTyVar v = WTypeVar (WeakTypeVar v (coreKindToKind (Var.varType v)))
61 coreVarToWeakVar v | Var.isCoVar v = WCoerVar (WeakCoerVar v (Prelude.error "FIXME")
62 (Prelude.error "FIXME") (Prelude.error "FIXME"))
64 Prelude.error "Var.Var that is neither an expression variable, type variable, nor coercion variable!"
66 tyConOrTyFun :: TyCon.TyCon -> Prelude.Either TyCon.TyCon TyCon.TyCon
68 if n == TysPrim.statePrimTyCon -- special-purpose hack treat State# as a type family since it has kind *->* but no tyvars
70 else if TyCon.isFamInstTyCon n
74 nat2int :: Nat -> Prelude.Int
76 nat2int (S x) = 1 + (nat2int x)
78 natToString :: Nat -> Prelude.String
79 natToString n = show (nat2int n)
81 -- only needs to sanitize characters which might appear in Haskell identifiers
82 sanitizeForLatex :: Prelude.String -> Prelude.String
83 sanitizeForLatex [] = []
84 sanitizeForLatex ('_':x) = "\\_"++(sanitizeForLatex x)
85 sanitizeForLatex ('$':x) = "\\$"++(sanitizeForLatex x)
86 sanitizeForLatex ('#':x) = "\\#"++(sanitizeForLatex x)
87 sanitizeForLatex (c:x) = c:(sanitizeForLatex x)
89 kindToCoreKind :: Kind -> TypeRep.Kind
90 kindToCoreKind KindStar = TypeRep.liftedTypeKind
91 kindToCoreKind (KindArrow k1 k2) = Coercion.mkArrowKind (kindToCoreKind k1) (kindToCoreKind k2)
92 kindToCoreKind _ = Prelude.error "kindToCoreKind does not know how to handle that"
94 coreKindToKind :: TypeRep.Kind -> Kind
96 case Coercion.splitKindFunTy_maybe k of
97 Prelude.Just (k1,k2) -> KindArrow (coreKindToKind k1) (coreKindToKind k2)
99 if (Coercion.isLiftedTypeKind k) then KindStar
100 else if (Coercion.isUnliftedTypeKind k) then KindStar
101 else if (Coercion.isArgTypeKind k) then KindStar
102 else if (Coercion.isUbxTupleKind k) then KindStar
103 else if (Coercion.isOpenTypeKind k) then KindStar
104 -- else if (Coercion.isUnliftedTypeKind k) then KindUnliftedType
105 -- else if (Coercion.isOpenTypeKind k) then KindOpenType
106 -- else if (Coercion.isArgTypeKind k) then KindArgType
107 -- else if (Coercion.isUbxTupleKind k) then KindUnboxedTuple
108 else if (Coercion.isTySuperKind k) then Prelude.error "coreKindToKind got the kind-of-the-kind-of-types"
109 else if (Coercion.isCoSuperKind k) then Prelude.error "coreKindToKind got the kind-of-the-kind-of-coercions"
110 else Prelude.error ((Prelude.++) "coreKindToKind got an unknown kind: "
111 (Outputable.showSDoc (Outputable.ppr k)))
112 outputableToString :: Outputable.Outputable a => a -> Prelude.String
113 outputableToString = (\x -> Outputable.showSDoc (Outputable.ppr x))
115 -- I'm leaving this here (commented out) in case I ever need it again)
116 --checkTypeEquality :: Type.Type -> Type.Type -> Prelude.Bool
117 --checkTypeEquality t1 t2 = Type.tcEqType (Type.expandTypeSynonyms t1) (Type.expandTypeSynonyms t2)
119 coreViewDeep :: Type.Type -> Type.Type
122 TypeRep.TyVarTy tv -> TypeRep.TyVarTy tv
123 TypeRep.FunTy arg res -> TypeRep.FunTy (coreViewDeep arg) (coreViewDeep res)
124 TypeRep.AppTy fun arg -> TypeRep.AppTy (coreViewDeep fun) (coreViewDeep arg)
125 TypeRep.ForAllTy fun arg -> TypeRep.ForAllTy fun (coreViewDeep arg)
126 TypeRep.TyConApp tc tys -> let t' = TypeRep.TyConApp tc (Prelude.map coreViewDeep tys)
127 in case Type.coreView t' of
128 Prelude.Nothing -> t'
129 Prelude.Just t'' -> t''
130 TypeRep.PredTy p -> case Type.coreView t of
131 Prelude.Nothing -> TypeRep.PredTy p
132 Prelude.Just t' -> t'
134 -- FIXME: cotycon applications may be oversaturated
135 coreCoercionToWeakCoercion :: Type.Type -> WeakCoercion
136 coreCoercionToWeakCoercion c =
138 TypeRep.TyVarTy v -> WCoVar (WeakCoerVar v (Prelude.error "FIXME") (Prelude.error "FIXME") (Prelude.error "FIXME"))
139 TypeRep.AppTy t1 t2 -> WCoApp (coreCoercionToWeakCoercion t1) (coreCoercionToWeakCoercion t2)
140 TypeRep.TyConApp tc t ->
141 case TyCon.isCoercionTyCon_maybe tc of
142 Prelude.Nothing -> Prelude.error ((Prelude.++) "coreCoercionToWeakCoercion got " (outputableToString c))
143 Prelude.Just (_, ctcd) ->
145 (TyCon.CoTrans , [x,y] ) -> WCoComp (coreCoercionToWeakCoercion x) (coreCoercionToWeakCoercion y)
146 (TyCon.CoSym , [x] ) -> WCoSym (coreCoercionToWeakCoercion x)
147 (TyCon.CoLeft , [x] ) -> WCoLeft (coreCoercionToWeakCoercion x)
148 (TyCon.CoRight , [x] ) -> WCoLeft (coreCoercionToWeakCoercion x)
149 -- FIXME (TyCon.CoUnsafe, [t1, t2 ] ) -> WCoUnsafe (coreTypeToWeakType t1) (coreTypeToWeakType t2)
150 (TyCon.CoTrans , [] ) -> Prelude.error "CoTrans is not in post-publication-appendix SystemFC1"
151 (TyCon.CoCsel1 , [] ) -> Prelude.error "CoCsel1 is not in post-publication-appendix SystemFC1"
152 (TyCon.CoCsel2 , [] ) -> Prelude.error "CoCsel2 is not in post-publication-appendix SystemFC1"
153 (TyCon.CoCselR , [] ) -> Prelude.error "CoCselR is not in post-publication-appendix SystemFC1"
154 (TyCon.CoInst , [] ) -> Prelude.error "CoInst is not in post-publication-appendix SystemFC1"
155 (TyCon.CoAxiom , [] ) -> Prelude.error "CoAxiom is not yet implemented (FIXME)"
156 _ -> Prelude.error ((Prelude.++) "coreCoercionToWeakCoercion got " (outputableToString c))
157 _ -> Prelude.error ((Prelude.++) "coreCoercionToWeakCoercion got " (outputableToString c))
158 -- TypeRep.ForAllTy v t -> WCoAll (Prelude.error "FIXME") (coreTypeToWeakType t)
159 -- FIXME x y -> WCoAppT (coreCoercionToWeakCoercion x) (coreCoercionToWeakType y)
160 -- CoreSyn.Type t -> WCoType (coreTypeToWeakType t)
163 weakCoercionToCoreCoercion :: CoreCoercion -> Type.Type
164 | WCoVar (weakCoerVar _ _ t1 t2) => (t1,t2)
165 | WCoType t => Prelude_error "FIXME WCoType"
166 | WCoApp c1 c2 => Prelude_error "FIXME WCoApp"
167 | WCoAppT c t => Prelude_error "FIXME WCoAppT"
168 | WCoAll k f => Prelude_error "FIXME WCoAll"
169 | WCoSym c => let (t2,t1) := weakCoercionTypes c in (t1,t2)
170 | WCoComp c1 c2 => Prelude_error "FIXME WCoComp"
171 | WCoLeft c => Prelude_error "FIXME WCoLeft"
172 | WCoRight c => Prelude_error "FIXME WCoRight"
173 | WCoUnsafe t1 t2 => (t1,t2)
177 --trace = Debug.Trace.trace
179 trace msg x = System.IO.Unsafe.unsafePerformIO $ Prelude.return x
182 trace msg x = System.IO.Unsafe.unsafePerformIO $
183 (Prelude.>>=) (System.IO.hPutStrLn System.IO.stdout msg) (\_ -> Prelude.return x)
184 trace msg x = System.IO.Unsafe.unsafePerformIO $
185 (Prelude.>>=) (System.IO.hPutStr System.IO.stdout " ") (\_ -> Prelude.return x)
188 {- -- used for extracting strings WITHOUT the patch for Coq
190 (\ b0 b1 b2 b3 b4 b5 b6 b7 ->
191 let f b i = if b then 1 `shiftL` i else 0
192 in Data.Char.chr (f b0 0 .|. f b1 1 .|. f b2 2 .|. f b3 3 .|. f b4 4 .|. f b5 5 .|. f b6 6 .|. f b7 7))