renamed Http_client to Http_user_agent to avoid clashes with Gerd's

[helm.git] / helm / ocaml / cic_proof_checking / cicEnvironment.ml

diff --git a/helm/ocaml/cic_proof_checking/cicEnvironment.ml b/helm/ocaml/cic_proof_checking/cicEnvironment.ml
index 3a201ad696b387222cde6a466f62004425e0cc17..77d2252eb330decb5c8b256b185724ec8d428fa9 100644 (file)
--- a/helm/ocaml/cic_proof_checking/cicEnvironment.ml
+++ b/helm/ocaml/cic_proof_checking/cicEnvironment.ml
@@ -38,6 +38,7 @@
 let cleanup_tmp = true;;
 
 let trust_obj = function uri -> true;;
+(*let trust_obj = function uri -> false;;*)
 
 type type_checked_obj =
    CheckedObj of Cic.obj     (* cooked obj *)
@@ -49,6 +50,7 @@ exception AlreadyCooked of string;;
 exception CircularDependency of string;;
 exception CouldNotFreeze of string;;
 exception CouldNotUnfreeze of string;;
+exception Term_not_found of UriManager.uri;;
 
 (* Cache that uses == instead of = for testing equality *)
 (* Invariant: an object is always in at most one of the *)
@@ -62,6 +64,7 @@ module Cache :
     uri:UriManager.uri -> unit
    val find_cooked : key:UriManager.uri -> Cic.obj
    val add_cooked : key:UriManager.uri -> Cic.obj -> unit
+   val remove: UriManager.uri -> unit
 
    val dump_to_channel : ?callback:(string -> unit) -> out_channel -> unit
    val restore_from_channel : ?callback:(string -> unit) -> in_channel -> unit
@@ -74,6 +77,7 @@ module Cache :
      val mem  : UriManager.uri -> bool
      val find : UriManager.uri -> Cic.obj
      val add  : UriManager.uri -> Cic.obj -> unit
+     val remove : UriManager.uri -> unit
 
       (** (de)serialization of type checker cache *)
      val dump_to_channel : ?callback:(string -> unit) -> out_channel -> unit
@@ -102,6 +106,12 @@ module Cache :
      let add uri obj =
       HT.add hashtable uri obj
      ;;
+     let remove uri =
+       if mem uri then
+         HT.remove hashtable uri
+       else
+         raise (Term_not_found uri);
+     ;;
 
       (* used to hash cons uris on restore to grant URI structure unicity *)
      let restore_uris =
@@ -129,7 +139,7 @@ module Cache :
              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 (restore_in_term te, restore_in_term ty)
           | C.Prod (n,s,t) -> C.Prod (n, restore_in_term s, restore_in_term t)
           | C.Lambda (n,s,t) -> C.Lambda (n, restore_in_term s, restore_in_term t)
@@ -288,7 +298,12 @@ module Cache :
    ;;
    let find_cooked ~key:uri = CacheOfCookedObjects.find uri;;
    let add_cooked ~key:uri obj = CacheOfCookedObjects.add uri obj;;
-
+   let remove uri =
+     if (!unchecked_list <> []) || (!frozen_list <> []) then
+       failwith "CicEnvironment.remove while type checking"
+     else
+       CacheOfCookedObjects.remove uri
+   ;;
    let dump_to_channel = CacheOfCookedObjects.dump_to_channel;;
    let restore_from_channel = CacheOfCookedObjects.restore_from_channel;;
    let empty = CacheOfCookedObjects.empty;;
@@ -303,28 +318,39 @@ let find_or_add_unchecked_to_cache uri =
  Cache.find_or_add_unchecked uri
   ~get_object_to_add:
    (function () ->
-     let filename = Getter.getxml uri in
+     let filename = Http_getter.getxml' uri in
      let bodyfilename =
       match UriManager.bodyuri_of_uri uri with
          None -> None
        | Some bodyuri ->
           try
-           ignore (Getter.resolve bodyuri) ;
+           ignore (Http_getter.resolve' bodyuri) ;
            (* The body exists ==> it is not an axiom *)
-           Some (Getter.getxml bodyuri)
+           Some (Http_getter.getxml' bodyuri)
           with
-           Getter.Unresolved ->
+           Http_getter_types.Key_not_found _ ->
             (* The body does not exist ==> we consider it an axiom *)
             None
      in
-      let obj = CicParser.obj_of_xml filename bodyfilename in
+     let cleanup () =
        if cleanup_tmp then
         begin
-         Unix.unlink filename ;
+         if Sys.file_exists filename then Unix.unlink filename ;
          match bodyfilename with
-            Some f -> Unix.unlink f
+            Some f -> if Sys.file_exists f then Unix.unlink f
           | None -> ()
         end ;
+      in
+      CicUniv.directly_to_env_begin ();
+      let obj =
+        try
+          CicParser.obj_of_xml filename bodyfilename
+        with exn ->
+          cleanup ();
+          raise exn
+      in
+      CicUniv.directly_to_env_end ();
+      cleanup ();
        obj
    )
 ;;
@@ -399,3 +425,20 @@ let put_inductive_definition uri obj =
     Cic.InductiveDefinition _ -> Cache.add_cooked uri obj
   | _ -> raise OnlyPutOfInductiveDefinitionsIsAllowed
 ;;
+
+let in_cache uri = 
+ try
+  ignore (Cache.find_cooked uri);true
+ with Not_found -> false
+;;
+
+let add_type_checked_term uri obj =
+  match obj with 
+  Cic.Constant (s,(Some bo),ty,ul) ->
+    Cache.add_cooked ~key:uri obj
+  | _ -> assert false 
+  Cache.add_cooked 
+;;
+
+let remove_term = Cache.remove
+