Generalizable All Variables.
Require Import Preamble.
-Require Import General.
Require Import Coq.Lists.List.
+Require Import General.
Require Import HaskKinds.
-Require Import HaskLiteralsAndTyCons.
+Require Import HaskLiterals.
+Require Import HaskTyCons.
Require Import HaskCoreVars.
Require Import HaskCoreTypes.
Require Import HaskCore.
Require Import HaskWeakTypes.
Require Import HaskWeak.
-Variable ModalBoxTyCon : TyCon. Extract Inlined Constant ModalBoxTyCon => "TysWiredIn.hetMetCodeTypeTyCon".
-Variable ArrowTyCon : TyCon. Extract Constant ArrowTyCon => "Type.funTyCon".
-
Variable tyConOrTyFun : CoreTyCon -> sum TyCon TyFun. Extract Inlined Constant tyConOrTyFun => "tyConOrTyFun".
Variable coreViewDeep : CoreType -> CoreType. Extract Inlined Constant coreViewDeep => "coreViewDeep".
Variable coreCoercionToWeakCoercion : CoreCoercion -> WeakCoercion.
Variable hetmet_esc_name : CoreName. Extract Inlined Constant hetmet_esc_name => "PrelNames.hetmet_esc_name".
Variable hetmet_csp_name : CoreName. Extract Inlined Constant hetmet_csp_name => "PrelNames.hetmet_csp_name".
+Definition mkTyFunApplication (tf:TyFun)(lwt:list WeakType) : ???WeakType :=
+ split_list lwt (length (fst (tyFunKind tf))) >>=
+ fun argsrest =>
+ let (args,rest) := argsrest in
+ OK (fold_left (fun x y => WAppTy x y) rest (WTyFunApp tf args)).
+
Fixpoint coreTypeToWeakType' (ct:CoreType) : ???WeakType :=
match ct with
| TyVarTy cv => match coreVarToWeakVar cv with
| a::b => coreTypeToWeakType' a >>= fun a' => rec b >>= fun b' => OK (a'::b')
end) lct)
in match tyConOrTyFun tc_ with
- | inr tf => recurse >>= fun recurse' => OK (WTyFunApp tf recurse')
+ | inr tf => recurse >>= fun recurse' => mkTyFunApplication tf recurse'
| inl tc => if eqd_dec tc ModalBoxTyCon
then match lct with
| ((TyVarTy ec)::tbody::nil) =>
| WExprVar _ => Error "encountered expression variable in a modal box type"
| WCoerVar _ => Error "encountered coercion variable in a modal box type"
end
- | _ => Error ("mis-applied modal box tycon: " +++ ct)
+ | _ => Error ("mis-applied modal box tycon: " +++ toString ct)
end
else let tc' := if eqd_dec tc ArrowTyCon
then WFunTyCon
coreTypeToWeakType' t2 >>= fun t2' =>
OK (WAppTy (WAppTy WFunTyCon t1') t2')
| ForAllTy cv t => match coreVarToWeakVar cv with
- | WExprVar _ => Error "encountered expression variable in a type"
+ | WExprVar _ => Error "encountered expression variable in a type abstraction"
| WTypeVar tv => coreTypeToWeakType' t >>= fun t' => OK (WForAllTy tv t')
- | WCoerVar _ => Error "encountered coercion variable in a type"
+ | WCoerVar (weakCoerVar v t1' t2') =>
+ coreTypeToWeakType' t >>= fun t3' =>
+ OK (WCoFunTy t1' t2' t3')
end
| PredTy (ClassP cl lct) => ((fix rec tl := match tl with
| nil => OK nil
| PredTy (EqPred _ _) => Error "hit a bare EqPred"
end.
-Fixpoint coreTypeToWeakType t := addErrorMessage "coreTypeToWeakType" (coreTypeToWeakType' (coreViewDeep t)).
+Definition coreTypeToWeakType t :=
+ addErrorMessage ("during coreTypeToWeakType on " +++ toString t +++ eol) (coreTypeToWeakType' (coreViewDeep t)).
(* detects our crude Core-encoding of modal type introduction/elimination forms *)
Definition isBrak (ce:@CoreExpr CoreVar) : ??(WeakExprVar * WeakTypeVar * CoreType) :=
match wt with
| WTyCon tc => OK (tc,acc)
| WAppTy t1 t2 => expectTyConApp t1 (t2::acc)
- | WTyFunApp tc tys => Error ("expectTyConApp encountered TyFunApp: " +++ wt)
- | _ => Error ("expectTyConApp encountered " +++ wt)
+ | WTyFunApp tc tys => Error ("expectTyConApp encountered TyFunApp: " +++ toString wt)
+ | _ => Error ("expectTyConApp encountered " +++ toString wt)
end.
Fixpoint coreExprToWeakExpr (ce:@CoreExpr CoreVar) : ???WeakExpr :=
| WCoerVar _ => Error "found a coercion variable in a case"
| WExprVar ev =>
coreTypeToWeakType (coreTypeOfCoreExpr e) >>= fun te' =>
- coreExprToWeakExpr e >>= fun e' =>
expectTyConApp te' nil >>= fun tca =>
- let (tc,lt) := tca in
+ let (tc,lt) := tca:(TyCon * list WeakType) in
((fix mkBranches (branches: list (@triple CoreAltCon (list CoreVar) (@CoreExpr CoreVar)))
: ???(list (WeakAltCon*list WeakTypeVar*list WeakCoerVar*list WeakExprVar*WeakExpr)) :=
match branches with
| LitAlt lit => OK ((WeakLitAlt lit,nil,nil,nil,e')::rest')
| DataAlt dc => let vars := map coreVarToWeakVar vars in
OK (((WeakDataAlt dc),
- (General.filter (map (fun x => match x with WTypeVar v => Some v | _ => None end) vars)),
- (General.filter (map (fun x => match x with WCoerVar v => Some v | _ => None end) vars)),
- (General.filter (map (fun x => match x with WExprVar v => Some v | _ => None end) vars)),
+ (filter (map (fun x => match x with WTypeVar v => Some v | _ => None end) vars)),
+ (filter (map (fun x => match x with WCoerVar v => Some v | _ => None end) vars)),
+ (filter (map (fun x => match x with WExprVar v => Some v | _ => None end) vars)),
e')::rest')
end
end) alts)