*)
- (** THIS MODULE SHOULD BE USED ONLY BY CoercGraph/CicCoercion/librarySync
- *
- * and may be merged with CicCoercion...
- *
- * **)
-
-
- (** XXX WARNING: non-reentrant *)
-type coerc_carr =
+type coerc_carr = private
| Uri of UriManager.uri (* const, mutind, mutconstr *)
| Sort of Cic.sort (* Prop, Set, Type *)
- | Term of Cic.term (* nothing supported *)
+ | Fun of int
+ | Dead
+;;
-exception EqCarrNotImplemented of string Lazy.t
-exception EqCarrOnNonMetaClosed
-val eq_carr: coerc_carr -> coerc_carr -> bool
-val coerc_carr_of_term: Cic.term -> coerc_carr
-val name_of_carr: coerc_carr -> string
+val eq_carr: ?exact:bool -> coerc_carr -> coerc_carr -> bool
+val string_of_carr: coerc_carr -> string
+
+(* takes a term in whnf ~delta:false and a desired ariety *)
+val coerc_carr_of_term: Cic.term -> int -> coerc_carr
+
+type coerc_db
+val empty_coerc_db : coerc_db
+val dump: unit -> coerc_db
+val restore: coerc_db -> unit
val to_list:
- unit ->
- (coerc_carr * coerc_carr * UriManager.uri list) list
+ coerc_db ->
+ (coerc_carr * coerc_carr * (UriManager.uri * int * int) list) list
-val add_coercion:
- coerc_carr * coerc_carr * UriManager.uri -> unit
+(* src carr, tgt carr, uri, saturations, coerced position
+ * invariant:
+ * if the constant pointed by uri has n argments
+ * n = coerced position + saturations + FunClass arity
+ *)
-val remove_coercion:
- (coerc_carr * coerc_carr * UriManager.uri -> bool) -> unit
+type saturations = int
+type coerced_pos = int
+type coercion_entry =
+ coerc_carr * coerc_carr * UriManager.uri * saturations * coerced_pos
+val add_coercion: coercion_entry -> unit
+val remove_coercion: (coercion_entry -> bool) -> unit
val find_coercion:
- (coerc_carr * coerc_carr -> bool) -> UriManager.uri list
+ (coerc_carr * coerc_carr -> bool) -> (UriManager.uri * int) list
-val is_a_coercion: UriManager.uri -> bool
-val get_carr: UriManager.uri -> coerc_carr * coerc_carr
-
-val term_of_carr: coerc_carr -> Cic.term
+val is_a_coercion: Cic.term -> coercion_entry option
+val prefer: UriManager.uri -> unit