1 (* Copyright (C) 2000, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
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15 * GNU General Public License for more details.
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19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://cs.unibo.it/helm/.
26 (******************************************************************************)
30 (* Claudio Sacerdoti Coen <sacerdot@cs.unibo.it> *)
33 (* This module implements a trival cache system (an hash-table) for cic *)
34 (* objects. Uses the getter (getter.ml) and the parser (cicParser.ml) *)
36 (******************************************************************************)
38 exception CircularDependency of string;;
41 (* returns the cic object whose uri is uri. If the term is not just in cache, *)
42 (* then it is parsed via CicParser.term_of_xml from the file whose name is *)
43 (* the result of Getter.get uri *)
44 val get_obj : UriManager.uri -> Cic.obj
46 type type_checked_obj =
47 CheckedObj of Cic.obj (* cooked obj *)
48 | UncheckedObj of Cic.obj (* uncooked obj *)
50 (* is_type_checked uri cookingsno *)
51 (*CSC commento falso ed obsoleto *)
52 (* returns (true,object) if the object has been type-checked *)
53 (* otherwise it returns (false,object) and freeze the object for *)
55 (* set_type_checking_info must be called to unfreeze the object *)
56 val is_type_checked : ?trust:bool -> UriManager.uri -> type_checked_obj
58 (* set_type_checking_info uri *)
59 (* must be called once the type-checking of uri is finished *)
60 (* The object whose uri is uri is unfreezed and won't be type-checked *)
61 (* again in the future (is_type_checked will return true) *)
62 val set_type_checking_info : UriManager.uri -> unit
64 (* We need this in the Qed. *)
65 val add_type_checked_term : UriManager.uri -> Cic.obj -> unit
67 (* get_cooked_obj ~trust uri *)
68 (* returns the object if it is already type-checked or if it can be *)
69 (* trusted (if [trust] = true and the trusting function accepts it) *)
70 (* Otherwise it raises Not_found *)
71 val get_cooked_obj : ?trust:bool -> UriManager.uri -> Cic.obj
73 (* FUNCTIONS USED ONLY IN THE TOPLEVEL/PROOF-ENGINE *)
75 exception OnlyPutOfInductiveDefinitionsIsAllowed
77 (* put_inductive_definition uri obj *)
78 (* put [obj] (that must be an InductiveDefinition and show URI is [uri]) *)
79 (* in the environment. *)
80 (* WARNING: VERY UNSAFE. *)
81 (* This function should be called only on a well-typed definition. *)
82 val put_inductive_definition : UriManager.uri -> Cic.obj -> unit
84 (* (de)serialization *)
85 val dump_to_channel : ?callback:(string -> unit) -> out_channel -> unit
86 val restore_from_channel : ?callback:(string -> unit) -> in_channel -> unit
87 val empty : unit -> unit
89 (* for filtering in tacticChaser *)
91 val in_cache : UriManager.uri -> bool