sig
module TD :
sig
module Const :
sig
type t = TopDown.const
val equal : t -> t -> bool
val hash : t -> int
val to_string : t -> string
val of_string : string -> t
val query : t
end
type const = Const.t
val set_debug : bool -> unit
module T :
sig
type t = private Var of int | Apply of const * t array
val mk_var : int -> t
val mk_const : const -> t
val mk_apply : const -> t array -> t
val mk_apply_l : const -> t list -> t
val is_var : t -> bool
val is_apply : t -> bool
val is_const : t -> bool
val eq : t -> t -> bool
val hash : t -> int
val ground : t -> bool
val vars : t -> int list
val max_var : t -> int
val head_symbol : t -> const
val to_string : t -> string
val pp : out_channel -> t -> unit
val fmt : Format.formatter -> t -> unit
val pp_tuple : out_channel -> t list -> unit
module Tbl :
sig
type key = t
type 'a t
val create : int -> 'a t
val clear : 'a t -> unit
val reset : 'a t -> unit
val copy : 'a t -> 'a t
val add : 'a t -> key -> 'a -> unit
val remove : 'a t -> key -> unit
val find : 'a t -> key -> 'a
val find_opt : 'a t -> key -> 'a option
val find_all : 'a t -> key -> 'a list
val replace : 'a t -> key -> 'a -> unit
val mem : 'a t -> key -> bool
val iter : (key -> 'a -> unit) -> 'a t -> unit
val filter_map_inplace :
(key -> 'a -> 'a option) -> 'a t -> unit
val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b
val length : 'a t -> int
val stats : 'a t -> Hashtbl.statistics
end
end
module Lit :
sig
type aggregate = {
left : T.t;
constructor : const;
var : T.t;
guard : T.t;
}
type t = LitPos of T.t | LitNeg of T.t | LitAggr of aggregate
val mk_pos : T.t -> t
val mk_neg : T.t -> t
val mk : bool -> T.t -> t
val mk_aggr :
left:T.t -> constructor:const -> var:T.t -> guard:T.t -> t
val eq : t -> t -> bool
val hash : t -> int
val to_term : t -> T.t
val fmap : (T.t -> T.t) -> t -> t
val to_string : t -> string
val pp : out_channel -> t -> unit
val fmt : Format.formatter -> t -> unit
end
module C :
sig
type t = private { head : T.t; body : Lit.t list; }
exception Unsafe
val mk_clause : T.t -> Lit.t list -> t
val mk_fact : T.t -> t
val eq : t -> t -> bool
val hash : t -> int
val head_symbol : t -> const
val max_var : t -> int
val fmap : (T.t -> T.t) -> t -> t
val to_string : t -> string
val pp : out_channel -> t -> unit
val fmt : Format.formatter -> t -> unit
module Tbl :
sig
type key = t
type 'a t
val create : int -> 'a t
val clear : 'a t -> unit
val reset : 'a t -> unit
val copy : 'a t -> 'a t
val add : 'a t -> key -> 'a -> unit
val remove : 'a t -> key -> unit
val find : 'a t -> key -> 'a
val find_opt : 'a t -> key -> 'a option
val find_all : 'a t -> key -> 'a list
val replace : 'a t -> key -> 'a -> unit
val mem : 'a t -> key -> bool
val iter : (key -> 'a -> unit) -> 'a t -> unit
val filter_map_inplace :
(key -> 'a -> 'a option) -> 'a t -> unit
val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b
val length : 'a t -> int
val stats : 'a t -> Hashtbl.statistics
end
end
module Subst :
sig
type t
type scope = int
type renaming
val empty : t
val bind : t -> T.t -> scope -> T.t -> scope -> t
val deref : t -> T.t -> scope -> T.t * scope
val create_renaming : unit -> renaming
val reset_renaming : renaming -> unit
val rename : renaming:renaming -> T.t -> scope -> T.t
val eval : t -> renaming:renaming -> T.t -> scope -> T.t
val eval_lit : t -> renaming:renaming -> Lit.t -> scope -> Lit.t
val eval_lits :
t -> renaming:renaming -> Lit.t list -> scope -> Lit.t list
val eval_clause : t -> renaming:renaming -> C.t -> scope -> C.t
end
type scope = Subst.scope
exception UnifFail
val unify :
?oc:bool -> ?subst:Subst.t -> T.t -> scope -> T.t -> scope -> Subst.t
val match_ :
?oc:bool -> ?subst:Subst.t -> T.t -> scope -> T.t -> scope -> Subst.t
val alpha_equiv :
?subst:Subst.t -> T.t -> scope -> T.t -> scope -> Subst.t
val are_alpha_equiv : T.t -> T.t -> bool
val clause_are_alpha_equiv : C.t -> C.t -> bool
module BuiltinFun :
sig
type t = T.t -> T.t option
type map
val create : unit -> map
val add : map -> Const.t -> t -> unit
val add_list : map -> (Const.t * t) list -> unit
val interpreted : map -> Const.t -> bool
val eval : map -> T.t -> T.t
end
module TVariantTbl :
sig
type key = T.t
type 'a t
val create : int -> 'a t
val clear : 'a t -> unit
val reset : 'a t -> unit
val copy : 'a t -> 'a t
val add : 'a t -> key -> 'a -> unit
val remove : 'a t -> key -> unit
val find : 'a t -> key -> 'a
val find_opt : 'a t -> key -> 'a option
val find_all : 'a t -> key -> 'a list
val replace : 'a t -> key -> 'a -> unit
val mem : 'a t -> key -> bool
val iter : (key -> 'a -> unit) -> 'a t -> unit
val filter_map_inplace : (key -> 'a -> 'a option) -> 'a t -> unit
val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b
val length : 'a t -> int
val stats : 'a t -> Hashtbl.statistics
end
module CVariantTbl :
sig
type key = C.t
type 'a t
val create : int -> 'a t
val clear : 'a t -> unit
val reset : 'a t -> unit
val copy : 'a t -> 'a t
val add : 'a t -> key -> 'a -> unit
val remove : 'a t -> key -> unit
val find : 'a t -> key -> 'a
val find_opt : 'a t -> key -> 'a option
val find_all : 'a t -> key -> 'a list
val replace : 'a t -> key -> 'a -> unit
val mem : 'a t -> key -> bool
val iter : (key -> 'a -> unit) -> 'a t -> unit
val filter_map_inplace : (key -> 'a -> 'a option) -> 'a t -> unit
val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b
val length : 'a t -> int
val stats : 'a t -> Hashtbl.statistics
end
module Index :
functor (Data : Hashtbl.HashedType) ->
sig
type t
val empty : unit -> t
val copy : t -> t
val clear : t -> unit
val add : t -> T.t -> Data.t -> t
val remove : t -> T.t -> Data.t -> t
val generalizations :
?oc:bool ->
t ->
scope -> T.t -> scope -> (Data.t -> Subst.t -> unit) -> unit
val unify :
?oc:bool ->
t ->
scope -> T.t -> scope -> (Data.t -> Subst.t -> unit) -> unit
val iter : t -> (T.t -> Data.t -> unit) -> unit
val size : t -> int
end
module Rewriting :
sig
type rule = T.t * T.t
type t
val create : unit -> t
val copy : t -> t
val add : t -> rule -> unit
val add_list : t -> rule list -> unit
val to_list : t -> rule list
val rewrite_root : t -> T.t -> T.t
val rewrite : t -> T.t -> T.t
end
exception NonStratifiedProgram
module DB :
sig
type t = TopDown.Default.DB.t
type interpreter = T.t -> C.t list
val create : ?parent:t -> unit -> t
val copy : t -> t
val clear : t -> unit
val add_fact : t -> T.t -> unit
val add_facts : t -> T.t list -> unit
val add_clause : t -> C.t -> unit
val add_clauses : t -> C.t list -> unit
val interpret : ?help:string -> t -> const -> interpreter -> unit
val interpret_list :
t -> (const * string * interpreter) list -> unit
val is_interpreted : t -> const -> bool
val add_builtin : t -> Const.t -> BuiltinFun.t -> unit
val builtin_funs : t -> BuiltinFun.map
val eval : t -> T.t -> T.t
val help : t -> string list
val num_facts : t -> int
val num_clauses : t -> int
val size : t -> int
val find_facts :
?oc:bool ->
t -> scope -> T.t -> scope -> (T.t -> Subst.t -> unit) -> unit
val find_clauses_head :
?oc:bool ->
t -> scope -> T.t -> scope -> (C.t -> Subst.t -> unit) -> unit
val find_interpretation :
?oc:bool ->
t -> scope -> T.t -> scope -> (C.t -> Subst.t -> unit) -> unit
end
val ask :
?oc:bool ->
?with_rules:C.t list ->
?with_facts:T.t list -> DB.t -> T.t -> T.t list
val ask_lits :
?oc:bool ->
?with_rules:C.t list ->
?with_facts:T.t list -> DB.t -> T.t list -> Lit.t list -> T.t list
end
val setup_handlers : TD.DB.t -> unit
end