From: Enrico Tassi <enrico.tassi@inria.fr>
Date: Wed, 9 Apr 2008 11:58:33 +0000 (+0000)
Subject: removed two useless calls to the environment, one still to be optimized out
X-Git-Tag: make_still_working~5386
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=497fcd1fe028781bcb3853044dc787d83fa8d1a9;p=helm.git

removed two useless calls to the environment, one still to be optimized out
---

diff --git a/helm/software/components/ng_kernel/nCicTypeChecker.ml b/helm/software/components/ng_kernel/nCicTypeChecker.ml
index dfb014c20..db79888d5 100644
--- a/helm/software/components/ng_kernel/nCicTypeChecker.ml
+++ b/helm/software/components/ng_kernel/nCicTypeChecker.ml
@@ -691,7 +691,10 @@ let rec typeof ~subst ~metasenv context term =
    | C.Appl _ -> raise (AssertFailure (lazy "Appl of length < 2"))
    | C.Match (Ref.Ref (_,_,Ref.Ind tyno) as r,outtype,term,pl) ->
       let outsort = typeof_aux context outtype in
-      let leftno = E.get_indty_leftno r in
+      let inductive,leftno,itl,_,_ = E.get_checked_indtys r in
+      let constructorsno =
+        let _,_,_,cl = List.nth itl tyno in List.length cl
+      in
       let parameters, arguments =
         let ty = R.whd ~subst context (typeof_aux context term) in
         let r',tl =
@@ -725,12 +728,6 @@ let rec typeof ~subst ~metasenv context term =
       check_allowed_sort_elimination ~subst ~metasenv r context
        sort_of_ind_type type_of_sort_of_ind_ty outsort;
       (* let's check if the type of branches are right *)
-      let leftno,constructorsno =
-        let inductive,leftno,itl,_,i = E.get_checked_indtys r in
-        let _,name,ty,cl = List.nth itl i in
-        let cl_len = List.length cl in
-        leftno, cl_len
-      in
       if List.length pl <> constructorsno then
        raise (TypeCheckerFailure (lazy ("Wrong number of cases in a match")));
       let j,branches_ok,p_ty, exp_p_ty =
@@ -925,6 +922,8 @@ let rec typeof ~subst ~metasenv context term =
             | (C.Sort (C.CProp | C.Type _), C.Sort _)
             | (C.Sort C.Prop, C.Sort C.Prop) -> ()
             | (C.Sort C.Prop, C.Sort (C.CProp | C.Type _)) ->
+        (* TODO: we should pass all these parameters since we
+         * have them already *)
                 let inductive,leftno,itl,_,i = E.get_checked_indtys r in
                 let itl_len = List.length itl in
                 let _,name,ty,cl = List.nth itl i in
@@ -1168,8 +1167,6 @@ and type_of_constant ((Ref.Ref (_,uri,_)) as ref) =
        check_obj_well_typed uobj;
        E.add_obj uobj;
        !logger (`Type_checking_completed uri);
-       if not (fst (E.get_obj uri)) then
-         raise (AssertFailure (lazy "environment error"));
        uobj
   in
   match cobj, ref with