(* *)
(******************************************************************************)
-let raise e = print_endline "***" ; flush stdout ; print_endline (Printexc.to_string e) ; flush stdout ; raise e;;
+let cleanup_tmp = true;;
+
+let trust_obj = function uri -> true;;
-(*CSC: forse i due seguenti tipi sono da unificare? *)
-type cooked_obj =
- Cooked of Cic.obj
- | Frozen of Cic.obj
- | Unchecked of Cic.obj
type type_checked_obj =
CheckedObj of Cic.obj (* cooked obj *)
- | UncheckedObj of Cic.obj (* uncooked obj *)
+ | UncheckedObj of Cic.obj (* uncooked obj to proof-check *)
;;
-exception NoFunctionProvided;;
-
-let cook_obj = ref (fun obj uri -> raise NoFunctionProvided);;
-
-let set_cooking_function foo =
- cook_obj := foo
-;;
+exception AlreadyCooked of string;;
exception CircularDependency of string;;
+exception CouldNotFreeze of string;;
exception CouldNotUnfreeze of string;;
-exception Impossible;;
-exception UncookedObj;;
-
-module HashedType =
- struct
- type t = UriManager.uri * int (* uri, livello di cottura *)
- let equal (u1,n1) (u2,n2) = UriManager.eq u1 u2 && n1 = n2
- let hash = Hashtbl.hash
- end
-;;
-(* Hashtable that uses == instead of = for testing equality *)
-module HashTable = Hashtbl.Make(HashedType);;
+(* Cache that uses == instead of = for testing equality *)
+(* Invariant: an object is always in at most one of the *)
+(* following states: unchecked, frozen and cooked. *)
+module Cache :
+ sig
+ val find_or_add_unchecked :
+ UriManager.uri -> get_object_to_add:(unit -> Cic.obj) -> Cic.obj
+ val unchecked_to_frozen : UriManager.uri -> unit
+ val frozen_to_cooked :
+ uri:UriManager.uri -> unit
+ val find_cooked : key:UriManager.uri -> Cic.obj
+ val add_cooked : key:UriManager.uri -> Cic.obj -> unit
-let hashtable = HashTable.create 271;;
+ val dump_to_channel : ?callback:(string -> unit) -> out_channel -> unit
+ val restore_from_channel : ?callback:(string -> unit) -> in_channel -> unit
+ val empty : unit -> unit
+ end
+=
+ struct
+ module CacheOfCookedObjects :
+ sig
+ val mem : UriManager.uri -> bool
+ val find : UriManager.uri -> Cic.obj
+ val add : UriManager.uri -> Cic.obj -> unit
-(* n is the number of time that the object must be cooked *)
-let get_obj_and_type_checking_info uri n =
- try
- HashTable.find hashtable (uri,n)
- with
- Not_found ->
- try
- match HashTable.find hashtable (uri,0) with
- Cooked _
- | Frozen _ -> raise Impossible
- | Unchecked _ as t -> t
- with
- Not_found ->
- let filename = Getter.getxml uri in
- let (annobj,_) = CicParser.term_of_xml filename uri false in
- let obj = Deannotate.deannotate_obj annobj in
- let output = Unchecked obj in
- HashTable.add hashtable (uri,0) output ;
- output
-;;
+ (** (de)serialization of type checker cache *)
+ val dump_to_channel : ?callback:(string -> unit) -> out_channel -> unit
+ val restore_from_channel : ?callback:(string -> unit) -> in_channel -> unit
+ val empty : unit -> unit
+ end
+ =
+ struct
+ module HashedType =
+ struct
+ type t = UriManager.uri
+ let equal = UriManager.eq
+ let hash = Hashtbl.hash
+ end
+ ;;
+ module HT = Hashtbl.Make(HashedType);;
+ let hashtable = HT.create 1009;;
+ let mem uri =
+ try
+ HT.mem hashtable uri
+ with
+ Not_found -> false
+ ;;
+ let find uri = HT.find hashtable uri
+ ;;
+ let add uri obj =
+ HT.add hashtable uri obj
+ ;;
-(* DANGEROUS!!! *)
-(* USEFUL ONLY DURING THE FIXING OF THE FILES *)
-(* change_obj uri (Some newobj) *)
-(* maps uri to newobj in cache. *)
-(* change_obj uri None *)
-(* maps uri to a freeze dummy-object. *)
-let change_obj uri newobj =
- let newobj =
- match newobj with
- Some newobj' -> Unchecked newobj'
- | None -> Frozen (Cic.Variable ("frozen-dummy", None, Cic.Implicit))
- in
- HashTable.remove hashtable (uri,0) ;
- HashTable.add hashtable (uri,0) newobj
-;;
+ (* used to hash cons uris on restore to grant URI structure unicity *)
+ let restore_uris =
+ let module C = Cic in
+ let recons uri =
+ UriManager.uri_of_string (UriManager.string_of_uri uri)
+ in
+ let rec restore_in_term =
+ 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,restore_in_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 (restore_in_term t)
+ ) l
+ in
+ C.Meta(i,l')
+ | C.Sort _ 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)
+ | C.LetIn (n,s,t) -> C.LetIn (n, restore_in_term s, restore_in_term t)
+ | C.Appl l -> C.Appl (List.map restore_in_term l)
+ | C.Const (uri,exp_named_subst) ->
+ let uri' = recons uri in
+ let exp_named_subst' =
+ List.map
+ (function (uri,t) -> (recons uri,restore_in_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,restore_in_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,restore_in_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, restore_in_term outty, restore_in_term t,
+ List.map restore_in_term pl)
+ | C.Fix (i, fl) ->
+ let len = List.length fl in
+ let liftedfl =
+ List.map
+ (fun (name, i, ty, bo) ->
+ (name, i, restore_in_term ty, restore_in_term bo))
+ fl
+ in
+ C.Fix (i, liftedfl)
+ | C.CoFix (i, fl) ->
+ let len = List.length fl in
+ let liftedfl =
+ List.map
+ (fun (name, ty, bo) -> (name, restore_in_term ty, restore_in_term bo))
+ fl
+ in
+ C.CoFix (i, liftedfl)
+ in
+ function
+ C.Constant (name,bo,ty,params) ->
+ let bo' =
+ match bo with
+ None -> None
+ | Some bo -> Some (restore_in_term bo)
+ in
+ let ty' = restore_in_term ty in
+ let params' = List.map recons params in
+ C.Constant (name, bo', ty', params')
+ | C.CurrentProof (name,conjs,bo,ty,params) ->
+ let conjs' =
+ List.map
+ (function (i,hyps,ty) ->
+ (i,
+ List.map (function
+ None -> None
+ | Some (name,C.Decl t) ->
+ Some (name,C.Decl (restore_in_term t))
+ | Some (name,C.Def (bo,ty)) ->
+ let ty' =
+ match ty with
+ None -> None
+ | Some ty'' -> Some (restore_in_term ty'')
+ in
+ Some (name,C.Def (restore_in_term bo, ty'))) hyps,
+ restore_in_term ty))
+ conjs
+ in
+ let bo' = restore_in_term bo in
+ let ty' = restore_in_term ty in
+ let params' = List.map recons params in
+ C.CurrentProof (name, conjs', bo', ty', params')
+ | C.Variable (name,bo,ty,params) ->
+ let bo' =
+ match bo with
+ None -> None
+ | Some bo -> Some (restore_in_term bo)
+ in
+ let ty' = restore_in_term ty in
+ let params' = List.map recons params in
+ C.Variable (name, bo', ty', params')
+ | C.InductiveDefinition (tl,params,paramsno) ->
+ let params' = List.map recons params in
+ let tl' =
+ List.map (function (name, inductive, ty, constructors) ->
+ name,
+ inductive,
+ restore_in_term ty,
+ (List.map
+ (function (name, ty) -> name, restore_in_term ty)
+ constructors))
+ tl
+ in
+ C.InductiveDefinition (tl', params', paramsno)
-let is_annotation_uri uri =
- Str.string_match (Str.regexp ".*\.ann$") (UriManager.string_of_uri uri) 0
-;;
+ let dump_to_channel ?(callback = ignore) oc =
+ HT.iter (fun uri _ -> callback (UriManager.string_of_uri uri)) hashtable;
+ Marshal.to_channel oc hashtable [] ;;
+ let empty () = HT.clear hashtable ;;
+ let restore_from_channel ?(callback = ignore) ic =
+ let restored = Marshal.from_channel ic in
+ empty ();
+ HT.iter
+ (fun k v ->
+ callback (UriManager.string_of_uri k);
+ HT.add hashtable
+ (UriManager.uri_of_string (UriManager.string_of_uri k))
+ (restore_uris v))
+ restored
+ ;;
+
+ end
+ ;;
+ let frozen_list = ref [];;
+ let unchecked_list = ref [];;
-(* returns both the annotated and deannotated uncooked forms (plus the *)
-(* map from ids to annotation targets) *)
-let get_annobj_and_type_checking_info uri =
- let filename = Getter.getxml uri in
- match CicParser.term_of_xml filename uri true with
- (_, None) -> raise Impossible
- | (annobj, Some ids_to_targets) ->
- (* If uri is the uri of an annotation, let's use the annotation file *)
- if is_annotation_uri uri then
-(* CSC: la roba annotata non dovrebbe piu' servire
- AnnotationParser.annotate (Getter.get_ann uri) ids_to_targets ;
-*) assert false ;
+ let find_or_add_unchecked uri ~get_object_to_add =
try
- (annobj, ids_to_targets, HashTable.find hashtable (uri,0))
+ List.assq uri !unchecked_list
with
- Not_found ->
- let obj = Deannotate.deannotate_obj annobj in
- let output = Unchecked obj in
- HashTable.add hashtable (uri,0) output ;
- (annobj, ids_to_targets, output)
-;;
-
+ Not_found ->
+ if List.mem_assq uri !frozen_list then
+ raise (CircularDependency (UriManager.string_of_uri uri))
+ else
+ if CacheOfCookedObjects.mem uri then
+ raise (AlreadyCooked (UriManager.string_of_uri uri))
+ else
+ (* OK, it is not already frozen nor cooked *)
+ let obj = get_object_to_add () in
+ unchecked_list := (uri,obj)::!unchecked_list ;
+ obj
+ ;;
+ let unchecked_to_frozen uri =
+ try
+ let obj = List.assq uri !unchecked_list in
+ unchecked_list := List.remove_assq uri !unchecked_list ;
+ frozen_list := (uri,obj)::!frozen_list
+ with
+ Not_found -> raise (CouldNotFreeze (UriManager.string_of_uri uri))
+ ;;
+ let frozen_to_cooked ~uri =
+ try
+ let obj = List.assq uri !frozen_list in
+ frozen_list := List.remove_assq uri !frozen_list ;
+ CacheOfCookedObjects.add uri obj
+ with
+ Not_found -> raise (CouldNotUnfreeze (UriManager.string_of_uri uri))
+ ;;
+ let find_cooked ~key:uri = CacheOfCookedObjects.find uri;;
+ let add_cooked ~key:uri obj = CacheOfCookedObjects.add uri obj;;
-(* get_obj uri *)
-(* returns the cic object whose uri is uri. If the term is not just in cache, *)
-(* then it is parsed via CicParser.term_of_xml from the file whose name is *)
-(* the result of Getter.getxml uri *)
-let get_obj uri =
- match get_obj_and_type_checking_info uri 0 with
- Unchecked obj -> obj
- | Frozen obj -> obj
- | Cooked obj -> obj
+ let dump_to_channel = CacheOfCookedObjects.dump_to_channel;;
+ let restore_from_channel = CacheOfCookedObjects.restore_from_channel;;
+ let empty = CacheOfCookedObjects.empty;;
+ end
;;
-(* get_annobj uri *)
-(* returns the cic object whose uri is uri either in annotated and *)
-(* deannotated form. The term is put into the cache if it's not there yet. *)
-let get_annobj uri =
- let (ann, ids_to_targets, deann) = get_annobj_and_type_checking_info uri in
- let deannobj =
- match deann with
- Unchecked obj -> obj
- | Frozen _ -> raise (CircularDependency (UriManager.string_of_uri uri))
- | Cooked obj -> obj
- in
- (ann, ids_to_targets, deannobj)
+let dump_to_channel = Cache.dump_to_channel;;
+let restore_from_channel = Cache.restore_from_channel;;
+let empty = Cache.empty;;
+
+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 bodyfilename =
+ match UriManager.bodyuri_of_uri uri with
+ None -> None
+ | Some bodyuri ->
+ try
+ ignore (Getter.resolve bodyuri) ;
+ (* The body exists ==> it is not an axiom *)
+ Some (Getter.getxml bodyuri)
+ with
+ Getter.Unresolved ->
+ (* The body does not exist ==> we consider it an axiom *)
+ None
+ in
+ let obj = CicParser.obj_of_xml filename bodyfilename in
+ if cleanup_tmp then
+ begin
+ Unix.unlink filename ;
+ match bodyfilename with
+ Some f -> Unix.unlink f
+ | None -> ()
+ end ;
+ obj
+ )
;;
-(*CSC Commento falso *)
-(* get_obj uri *)
-(* returns the cooked cic object whose uri is uri. The term must be present *)
-(* and cooked in cache *)
-let rec get_cooked_obj uri cookingsno =
- match get_obj_and_type_checking_info uri cookingsno with
- Unchecked _
- | Frozen _ -> raise UncookedObj
- | Cooked obj -> obj
+(* set_type_checking_info uri *)
+(* must be called once the type-checking of uri is finished *)
+(* The object whose uri is uri is unfreezed *)
+let set_type_checking_info uri =
+ Cache.frozen_to_cooked uri
;;
-(* is_type_checked uri *)
+(* is_type_checked uri *)
(* CSC: commento falso ed obsoleto *)
-(* returns true if the term has been type-checked *)
-(* otherwise it returns false and freeze the term for type-checking *)
-(* set_type_checking_info must be called to unfreeze the term *)
-let is_type_checked uri cookingsno =
- match get_obj_and_type_checking_info uri cookingsno with
- Cooked obj -> CheckedObj obj
- | Unchecked obj ->
- HashTable.remove hashtable (uri,0) ;
- HashTable.add hashtable (uri,0) (Frozen obj) ;
+(* returns a CheckedObj if the term has been type-checked *)
+(* otherwise it freezes the term for type-checking and returns
+ it *)
+(* set_type_checking_info must be called to unfreeze the term *)
+let is_type_checked ?(trust=true) uri =
+ try
+ CheckedObj (Cache.find_cooked uri)
+ with
+ Not_found ->
+ let obj = find_or_add_unchecked_to_cache uri in
+ Cache.unchecked_to_frozen uri ;
+ if trust && trust_obj uri then
+ begin
+ Logger.log (`Trusting uri) ;
+ set_type_checking_info uri ;
+ CheckedObj (Cache.find_cooked uri)
+ end
+ else
UncheckedObj obj
- | Frozen _ -> raise (CircularDependency (UriManager.string_of_uri uri))
;;
-(* set_type_checking_info uri *)
-(* must be called once the type-checking of uri is finished *)
-(* The object whose uri is uri is unfreezed *)
-let set_type_checking_info uri =
- match HashTable.find hashtable (uri,0) with
- Frozen obj ->
- (* let's cook the object at every level *)
- HashTable.remove hashtable (uri,0) ;
- let obj' = CicSubstitution.undebrujin_inductive_def uri obj in
- HashTable.add hashtable (uri,0) (Cooked obj') ;
- let cooked_objs = !cook_obj obj' uri in
- let last_cooked_level = ref 0 in
- let last_cooked_obj = ref obj' in
- List.iter
- (fun (n,cobj) ->
- for i = !last_cooked_level + 1 to n do
- HashTable.add hashtable (uri,i) (Cooked !last_cooked_obj)
- done ;
- HashTable.add hashtable (uri,n + 1) (Cooked cobj) ;
- last_cooked_level := n + 1 ;
- last_cooked_obj := cobj
- ) cooked_objs ;
- for i = !last_cooked_level + 1 to UriManager.depth_of_uri uri + 1 do
- HashTable.add hashtable (uri,i) (Cooked !last_cooked_obj)
- done
- | _ -> raise (CouldNotUnfreeze (UriManager.string_of_uri uri))
+(* get_cooked_obj ~trust uri *)
+(* returns the object if it is already type-checked or if it can be *)
+(* trusted (if [trust] = true and the trusting function accepts it) *)
+(* Otherwise it raises Not_found *)
+let get_cooked_obj ?(trust=true) uri =
+ try
+ Cache.find_cooked uri
+ with Not_found ->
+ if trust && trust_obj uri then
+ begin
+ match is_type_checked uri with
+ CheckedObj obj -> obj
+ | _ -> assert false
+ end
+ else
+ begin
+ prerr_endline ("@@@ OOOOOOOPS: get_cooked_obj(" ^ UriManager.string_of_uri uri ^ ") raises Not_found since the object is not type-checked nor trusted.") ;
+ raise Not_found
+ end
+;;
+
+(* get_obj uri *)
+(* returns the cic object whose uri is uri. If the term is not just in cache, *)
+(* then it is parsed via CicParser.term_of_xml from the file whose name is *)
+(* the result of Getter.getxml uri *)
+let get_obj uri =
+ try
+ get_cooked_obj uri
+ with
+ Not_found ->
+ find_or_add_unchecked_to_cache uri
+;;
+
+exception OnlyPutOfInductiveDefinitionsIsAllowed
+
+let put_inductive_definition uri obj =
+ match obj with
+ Cic.InductiveDefinition _ -> Cache.add_cooked uri obj
+ | _ -> raise OnlyPutOfInductiveDefinitionsIsAllowed
;;
projects / helm.git / blobdiff