Extract Inlined Constant mkCoreLet => "MkCore.mkCoreLet".
Variable sortAlts : forall {a}{b}, list (@triple AltCon a b) -> list (@triple AltCon a b).
- Extract Inlined Constant mkCoreLet => "sortAlts".
+ Extract Inlined Constant sortAlts => "sortAlts".
Implicit Arguments sortAlts [[a][b]].
-Variable trustMeCoercion : CoreCoercion.
- Extract Inlined Constant trustMeCoercion => "Coercion.unsafeCoerce".
+Variable mkUnsafeCoercion : CoreType -> CoreType -> CoreCoercion.
+ Extract Inlined Constant mkUnsafeCoercion => "Coercion.mkUnsafeCoercion".
(* Coercion and Type are actually the same thing in GHC, but we don't tell Coq about that. This lets us get around it. *)
Variable coreCoercionsAreReallyTypes : CoreCoercion -> CoreType.
Extract Inlined Constant coreCoercionsAreReallyTypes => "(\x -> x)".
-(* a dummy variable which is never referenced but needed for a binder *)
-Variable dummyVariable : CoreVar.
- (* FIXME this doesn't actually work *)
- Extract Inlined Constant dummyVariable => "(Prelude.error ""dummyVariable"")".
+Definition weakCoercionToCoreCoercion (wc:WeakCoercion) : CoreCoercion :=
+ mkUnsafeCoercion (weakTypeToCoreType (fst (weakCoercionTypes wc))) (weakTypeToCoreType (snd (weakCoercionTypes wc))).
-Section HaskWeakToCore.
-
- (* the CoreVar for the "magic" bracket/escape identifiers must be created from within one of the monads *)
- Context (hetmet_brak_var : CoreVar).
- Context (hetmet_esc_var : CoreVar).
-
- (* FIXME: do something more intelligent here *)
- Definition weakCoercionToCoreCoercion : WeakCoercion -> CoreCoercion :=
- fun _ => trustMeCoercion.
-
- Fixpoint weakExprToCoreExpr (me:WeakExpr) : @CoreExpr CoreVar :=
+Fixpoint weakExprToCoreExpr (me:WeakExpr) : @CoreExpr CoreVar :=
match me with
| WEVar (weakExprVar v _) => CoreEVar v
| WELit lit => CoreELit lit
| WENote n e => CoreENote n (weakExprToCoreExpr e )
| WELam (weakExprVar ev _ ) e => CoreELam ev (weakExprToCoreExpr e )
| WETyLam (weakTypeVar tv _ ) e => CoreELam tv (weakExprToCoreExpr e )
- | WECoLam (weakCoerVar cv _ _) e => CoreELam cv (weakExprToCoreExpr e )
+ | WECoLam (weakCoerVar cv _ _ _) e => CoreELam cv (weakExprToCoreExpr e )
| WECast e co => CoreECast (weakExprToCoreExpr e ) (weakCoercionToCoreCoercion co)
- | WEBrak (weakTypeVar ec _) e t => CoreEApp (CoreEApp (CoreEVar hetmet_brak_var)
- (CoreEType (TyVarTy ec))) (CoreEType (weakTypeToCoreType t))
- | WEEsc (weakTypeVar ec _) e t => CoreEApp (CoreEApp (CoreEVar hetmet_esc_var)
- (CoreEType (TyVarTy ec))) (CoreEType (weakTypeToCoreType t))
+ | WEBrak v (weakTypeVar ec _) e t => fold_left CoreEApp
+ ((CoreEType (TyVarTy ec))::
+ (CoreEType (weakTypeToCoreType t))::
+ (weakExprToCoreExpr e)::
+ nil)
+ (CoreEVar v)
+ | WEEsc v (weakTypeVar ec _) e t => fold_left CoreEApp
+ ((CoreEType (TyVarTy ec))::
+ (CoreEType (weakTypeToCoreType t))::
+ (weakExprToCoreExpr e)::
+ nil)
+ (CoreEVar v)
+ | WECSP v (weakTypeVar ec _) e t => fold_left CoreEApp
+ ((CoreEType (TyVarTy ec))::
+ (CoreEType (weakTypeToCoreType t))::
+ (weakExprToCoreExpr e)::
+ nil)
+ (CoreEVar v)
| WELet (weakExprVar v _) ve e => mkCoreLet (CoreNonRec v (weakExprToCoreExpr ve)) (weakExprToCoreExpr e)
- | WECase e tbranches tc types alts => CoreECase (weakExprToCoreExpr e) dummyVariable (weakTypeToCoreType tbranches)
+ | WECase vscrut e tbranches tc types alts =>
+ CoreECase (weakExprToCoreExpr e) vscrut (weakTypeToCoreType tbranches)
(sortAlts ((
fix mkCaseBranches (alts:Tree
??(AltCon*list WeakTypeVar*list WeakCoerVar*list WeakExprVar*WeakExpr)) :=
(weakExprToCoreExpr e)
end.
-End HaskWeakToCore.
+Definition weakTypeOfWeakExpr (we:WeakExpr) : ???WeakType :=
+ coreTypeToWeakType (coreTypeOfCoreExpr (weakExprToCoreExpr we)).
+Instance weakExprToString : ToString WeakExpr :=
+ { toString := fun we => toString (weakExprToCoreExpr we) }.