X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Focaml%2Fcic%2FcicUtil.ml;h=bb356655a663477e79ff55333fd1c4d594191832;hb=6a388079100673e4f71d28a8a53ea029ee1b08df;hp=81834251577822662c5121c70ea0cf98a11aaf5f;hpb=108f7ef287b08d4d7228790d7c6d956434f16c6c;p=helm.git

diff --git a/helm/ocaml/cic/cicUtil.ml b/helm/ocaml/cic/cicUtil.ml
index 818342515..bb356655a 100644
--- a/helm/ocaml/cic/cicUtil.ml
+++ b/helm/ocaml/cic/cicUtil.ml
@@ -227,3 +227,136 @@ let id_of_annterm =
   | Cic.AMutCase (id,_,_,_,_,_)
   | Cic.AFix (id,_,_)
   | Cic.ACoFix (id,_,_) -> id
+
+
+let rec rehash_term =
+  let module C = Cic in
+  let recons uri = UriManager.uri_of_string (UriManager.string_of_uri uri) in
+  function
+   | (C.Rel _) as t -> t
+   | C.Var (uri,exp_named_subst) ->
+      let uri' = recons uri in
+      let exp_named_subst' =
+       List.map
+        (function (uri,t) ->(recons uri,rehash_term t)) 
+         exp_named_subst
+      in
+       C.Var (uri',exp_named_subst')
+   | C.Meta (i,l) ->
+      let l' =
+       List.map
+        (function
+            None -> None
+          | Some t -> Some (rehash_term t)
+        ) l
+      in
+       C.Meta(i,l')
+   | C.Sort (C.Type u) -> 
+       CicUniv.assert_univ u;
+       C.Sort (C.Type (CicUniv.recons_univ u))
+   | C.Sort _ as t -> t
+   | C.Implicit _ as t -> t
+   | C.Cast (te,ty) -> C.Cast (rehash_term te, rehash_term ty)
+   | C.Prod (n,s,t) -> C.Prod (n, rehash_term s, rehash_term t)
+   | C.Lambda (n,s,t) -> C.Lambda (n, rehash_term s, rehash_term t)
+   | C.LetIn (n,s,t) -> C.LetIn (n, rehash_term s, rehash_term t)
+   | C.Appl l -> C.Appl (List.map rehash_term l)
+   | C.Const (uri,exp_named_subst) ->
+      let uri' = recons uri in
+      let exp_named_subst' = 
+       List.map
+        (function (uri,t) -> (recons uri,rehash_term t)) exp_named_subst
+      in
+       C.Const (uri',exp_named_subst')
+   | C.MutInd (uri,tyno,exp_named_subst) ->
+      let uri' = recons uri in
+      let exp_named_subst' = 
+       List.map
+        (function (uri,t) -> (recons uri,rehash_term t)) exp_named_subst
+      in
+       C.MutInd (uri',tyno,exp_named_subst')
+   | C.MutConstruct (uri,tyno,consno,exp_named_subst) ->
+      let uri' = recons uri in
+      let exp_named_subst' = 
+       List.map
+        (function (uri,t) -> (recons uri,rehash_term t)) exp_named_subst
+      in
+       C.MutConstruct (uri',tyno,consno,exp_named_subst')
+   | C.MutCase (uri,i,outty,t,pl) ->
+      C.MutCase (recons uri, i, rehash_term outty, rehash_term t,
+       List.map rehash_term pl)
+   | C.Fix (i, fl) ->
+      let liftedfl =
+       List.map
+        (fun (name, i, ty, bo) ->
+          (name, i, rehash_term ty, rehash_term bo))
+         fl
+      in
+       C.Fix (i, liftedfl)
+   | C.CoFix (i, fl) ->
+      let liftedfl =
+       List.map
+        (fun (name, ty, bo) -> (name, rehash_term ty, rehash_term bo))
+         fl
+      in
+       C.CoFix (i, liftedfl)
+
+let rehash_obj =
+ let module C = Cic in
+ let recons uri = UriManager.uri_of_string (UriManager.string_of_uri uri) in
+ function 
+   C.Constant (name,bo,ty,params,attrs) ->
+     let bo' =
+       match bo with
+         None -> None
+       | Some bo -> Some (rehash_term bo)
+     in
+     let ty' = rehash_term ty in
+     let params' = List.map recons params in
+     C.Constant (name, bo', ty', params',attrs)
+ | C.CurrentProof (name,conjs,bo,ty,params,attrs) ->
+     let conjs' =
+       List.map
+         (function (i,hyps,ty) ->
+           (i,
+           List.map (function
+               None -> None
+             | Some (name,C.Decl t) ->
+                 Some (name,C.Decl (rehash_term t))
+             | Some (name,C.Def (bo,ty)) ->
+                 let ty' =
+                   match ty with
+                     None -> None
+                   | Some ty'' -> Some (rehash_term ty'')
+                 in
+                 Some (name,C.Def (rehash_term bo, ty'))) hyps,
+           rehash_term ty))
+         conjs
+     in
+     let bo' = rehash_term bo in
+     let ty' = rehash_term ty in
+     let params' = List.map recons params in
+     C.CurrentProof (name, conjs', bo', ty', params',attrs)
+ | C.Variable (name,bo,ty,params,attrs) ->
+     let bo' =
+       match bo with
+         None -> None
+       | Some bo -> Some (rehash_term bo)
+     in
+     let ty' = rehash_term ty in
+     let params' = List.map recons params in
+     C.Variable (name, bo', ty', params',attrs)
+ | C.InductiveDefinition (tl,params,paramsno,attrs) ->
+     let params' = List.map recons params in
+     let tl' =
+       List.map (function (name, inductive, ty, constructors) ->
+         name,
+         inductive,
+         rehash_term ty,
+         (List.map
+           (function (name, ty) -> name, rehash_term ty)
+           constructors))
+         tl
+     in
+     C.InductiveDefinition (tl', params', paramsno, attrs)
+