1 (* Copyright (C) 2000, HELM Team.
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4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
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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 *)
35 (* objects. Uses the getter (getter.ml) and the parser (cicParser.ml) *)
37 (****************************************************************************)
39 exception CircularDependency of string;;
40 exception Term_not_found of UriManager.uri;;
42 (* as the get cooked, but if not present the object is only fetched,
43 * not unfreezed and committed
46 CicUniv.universe_graph -> UriManager.uri ->
47 Cic.obj * CicUniv.universe_graph
49 type type_checked_obj =
50 CheckedObj of (Cic.obj * CicUniv.universe_graph) (* cooked obj *)
51 | UncheckedObj of Cic.obj (* uncooked obj *)
54 * I think this should be the real semantic:
56 * val is_type_checked:
57 * ?trust:bool -> UriManager.uri -> bool
59 * but the old semantic is similar to get_cooked_obj, but
60 * returns an unchecked object intead of a Not_found
63 ?trust:bool -> CicUniv.universe_graph -> UriManager.uri ->
66 (* set_type_checking_info uri *)
67 (* must be called once the type-checking of uri is finished *)
68 (* The object whose uri is uri is unfreezed and won't be type-checked *)
69 (* again in the future (is_type_checked will return true) *)
71 (* Since the universes are not exported directly, but generated *)
72 (* typecheking the library, we can't find them in the library as we *)
73 (* do for the types. This means that when we commit uris during *)
74 (* univ generation we can't associate the uri with the universe graph *)
75 (* we find in the library, we have to calculate it and then inject it *)
76 (* in the cacke. This is an orrible backdoor used by univ_maker. *)
77 (* see the .ml file for some reassuring invariants *)
78 val set_type_checking_info :
79 ?replace_ugraph:(CicUniv.universe_graph option) -> UriManager.uri -> unit
81 (* We need this in the Qed. *)
82 val add_type_checked_term :
83 UriManager.uri -> (Cic.obj * CicUniv.universe_graph) -> unit
85 (** remove a type checked term
86 * @raise Term_not_found when given term is not in the environment
87 * @raise Failure when remove_term is invoked while type checking *)
88 val remove_term: UriManager.uri -> unit
90 (* get_cooked_obj ~trust uri *)
91 (* returns the object if it is already type-checked or if it can be *)
92 (* trusted (if [trust] = true and the trusting function accepts it) *)
93 (* Otherwise it raises Not_found *)
95 ?trust:bool -> CicUniv.universe_graph -> UriManager.uri ->
96 Cic.obj * CicUniv.universe_graph
98 (* FUNCTIONS USED ONLY IN THE TOPLEVEL/PROOF-ENGINE *)
100 exception OnlyPutOfInductiveDefinitionsIsAllowed
102 (* put_inductive_definition uri obj *)
103 (* put [obj] (that must be an InductiveDefinition and show URI is [uri]) *)
104 (* in the environment. *)
105 (* WARNING: VERY UNSAFE. *)
106 (* This function should be called only on a well-typed definition. *)
107 val put_inductive_definition :
108 UriManager.uri -> (Cic.obj * CicUniv.universe_graph) -> unit
110 (* (de)serialization *)
111 val dump_to_channel : ?callback:(string -> unit) -> out_channel -> unit
112 val restore_from_channel : ?callback:(string -> unit) -> in_channel -> unit
113 val empty : unit -> unit
115 (** Set trust function. Per default this function is set to (fun _ -> true) *)
116 val set_trust: (UriManager.uri -> bool) -> unit
118 (* for filtering in tacticChaser *)
119 val in_cache : UriManager.uri -> bool