X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_proof_checking%2FcicSubstitution.ml;h=c718524fc3b6d3e099a1eb64f45f7d6838fa51db;hb=a0b3f70f4dee78cc07baf2e78673b8b7cf573995;hp=4a938acb9c209be1cbbab3e338f35c6bbf19538e;hpb=bac72fcaa876137ab7a5630e0c1badc2a627dce8;p=helm.git

diff --git a/helm/ocaml/cic_proof_checking/cicSubstitution.ml b/helm/ocaml/cic_proof_checking/cicSubstitution.ml
index 4a938acb9..c718524fc 100644
--- a/helm/ocaml/cic_proof_checking/cicSubstitution.ml
+++ b/helm/ocaml/cic_proof_checking/cicSubstitution.ml
@@ -54,7 +54,7 @@ let lift n =
        in
         C.Meta(i,l')
     | C.Sort _ as t -> t
-    | C.Implicit as t -> t
+    | C.Implicit _ as t -> t
     | C.Cast (te,ty) -> C.Cast (liftaux k te, liftaux k ty)
     | C.Prod (n,s,t) -> C.Prod (n, liftaux k s, liftaux (k+1) t)
     | C.Lambda (n,s,t) -> C.Lambda (n, liftaux k s, liftaux (k+1) t)
@@ -126,7 +126,7 @@ let subst arg =
        in
         C.Meta(i,l')
     | C.Sort _ as t -> t
-    | C.Implicit as t -> t
+    | C.Implicit _ as t -> t
     | C.Cast (te,ty) -> C.Cast (substaux k te, substaux k ty)
     | C.Prod (n,s,t) -> C.Prod (n, substaux k s, substaux (k + 1) t)
     | C.Lambda (n,s,t) -> C.Lambda (n, substaux k s, substaux (k + 1) t)
@@ -202,7 +202,8 @@ prerr_endline ("@@@POSSIBLE BUG: SUBSTITUTION IS NOT SIMULTANEOUS") ;
         with
          Not_found ->
           let params =
-           (match CicEnvironment.get_cooked_obj ~trust:true uri with
+           let obj = CicEnvironment.get_obj uri in
+           (match obj with
                C.Constant _ -> raise ReferenceToConstant
              | C.Variable (_,_,_,params) -> params
              | C.CurrentProof _ -> raise ReferenceToCurrentProof
@@ -234,7 +235,7 @@ prerr_endline "---- END\n\n " ;
        in
         C.Meta(i,l')
     | C.Sort _ as t -> t
-    | C.Implicit as t -> t
+    | C.Implicit _ as t -> t
     | C.Cast (te,ty) -> C.Cast (substaux k te, substaux k ty)
     | C.Prod (n,s,t) -> C.Prod (n, substaux k s, substaux (k + 1) t)
     | C.Lambda (n,s,t) -> C.Lambda (n, substaux k s, substaux (k + 1) t)
@@ -250,7 +251,8 @@ prerr_endline "---- END\n\n " ;
     | C.Appl _ -> assert false
     | C.Const (uri,exp_named_subst')  ->
        let params =
-        (match CicEnvironment.get_cooked_obj ~trust:true uri with
+        let obj = CicEnvironment.get_obj uri in
+        (match obj with
             C.Constant (_,_,_,params) -> params
           | C.Variable _ -> raise ReferenceToVariable
           | C.CurrentProof (_,_,_,_,params) -> params
@@ -263,7 +265,8 @@ prerr_endline "---- END\n\n " ;
          C.Const (uri,exp_named_subst'')
     | C.MutInd (uri,typeno,exp_named_subst') ->
        let params =
-        (match CicEnvironment.get_cooked_obj ~trust:true uri with
+        let obj = CicEnvironment.get_obj uri in
+        (match obj with
             C.Constant _ -> raise ReferenceToConstant
           | C.Variable _ -> raise ReferenceToVariable
           | C.CurrentProof _ -> raise ReferenceToCurrentProof
@@ -276,7 +279,8 @@ prerr_endline "---- END\n\n " ;
          C.MutInd (uri,typeno,exp_named_subst'')
     | C.MutConstruct (uri,typeno,consno,exp_named_subst') ->
        let params =
-        (match CicEnvironment.get_cooked_obj ~trust:true uri with
+        let obj = CicEnvironment.get_obj uri in
+        (match obj with
             C.Constant _ -> raise ReferenceToConstant
           | C.Variable _ -> raise ReferenceToVariable
           | C.CurrentProof _ -> raise ReferenceToCurrentProof
@@ -335,13 +339,15 @@ if List.mem uri params then prerr_endline "---- OK2" ;
   substaux 1
 ;;
 
-(* l is the relocation list *)
+(* lift_meta [t_1 ; ... ; t_n] t                                *)
+(* returns the term [t] where [Rel i] is substituted with [t_i] *)
+(* [t_i] is lifted as usual when it crosses an abstraction      *)
 let lift_meta l t = 
-    let module C = Cic in
-    if l = [] then t else 
-    let rec aux k = function
+ let module C = Cic in
+  if l = [] then t else 
+   let rec aux k = function
       C.Rel n as t -> 
-	if n <= k then t else 
+        if n <= k then t else 
          (try
            match List.nth l (n-k-1) with
               None -> raise RelToHiddenHypothesis
@@ -368,7 +374,7 @@ let lift_meta l t =
        in
         C.Meta(i,l')
     | C.Sort _ as t -> t
-    | C.Implicit as t -> t
+    | C.Implicit _ as t -> t
     | C.Cast (te,ty) -> C.Cast (aux k te, aux k ty) (*CSC ??? *)
     | C.Prod (n,s,t) -> C.Prod (n, aux k s, aux (k + 1) t)
     | C.Lambda (n,s,t) -> C.Lambda (n, aux k s, aux (k + 1) t)