open Names

(*
   The mk_?_id function build different name w.r.t. a function
   Each of their use is justified in the code
*)
val mk_rel_id : Id.t -> Id.t
val mk_correct_id : Id.t -> Id.t
val mk_complete_id : Id.t -> Id.t
val mk_equation_id : Id.t -> Id.t
val fresh_id : Id.t list -> string -> Id.t
val fresh_name : Id.t list -> string -> Name.t
val get_name : Id.t list -> ?default:string -> Name.t -> Name.t
val array_get_start : 'a array -> 'a array
val locate_ind : Libnames.qualid -> inductive
val locate_constant : Libnames.qualid -> Constant.t
val locate_with_msg : Pp.t -> (Libnames.qualid -> 'a) -> Libnames.qualid -> 'a
val filter_map : ('a -> bool) -> ('a -> 'b) -> 'a list -> 'b list
val list_union_eq : ('a -> 'a -> bool) -> 'a list -> 'a list -> 'a list
val list_add_set_eq : ('a -> 'a -> bool) -> 'a -> 'a list -> 'a list

val chop_rlambda_n :
     int
  -> Glob_term.glob_constr
  -> (Name.t * Glob_term.glob_constr * Glob_term.glob_constr option) list
     * Glob_term.glob_constr

val chop_rprod_n :
     int
  -> Glob_term.glob_constr
  -> (Name.t * Glob_term.glob_constr) list * Glob_term.glob_constr

val eq : EConstr.constr Lazy.t
val refl_equal : EConstr.constr Lazy.t
val jmeq : unit -> EConstr.constr
val jmeq_refl : unit -> EConstr.constr
val make_eq : unit -> EConstr.constr

(* [with_full_print f a] applies [f] to [a] in full printing environment.

   This function preserves the print settings
*)
val with_full_print : ('a -> 'b) -> 'a -> 'b

(*****************)

type function_info =
  { function_constant : Constant.t
  ; graph_ind : inductive
  ; equation_lemma : Constant.t option
  ; correctness_lemma : Constant.t option
  ; completeness_lemma : Constant.t option
  ; rect_lemma : Constant.t option
  ; rec_lemma : Constant.t option
  ; prop_lemma : Constant.t option
  ; sprop_lemma : Constant.t option
  ; is_general : bool }

val find_Function_infos : Constant.t -> function_info option
val find_Function_of_graph : inductive -> function_info option

(* WARNING: To be used just after the graph definition !!! *)
val add_Function : bool -> Constant.t -> unit
val update_Function : function_info -> unit

(** debugging *)
val pr_info : Environ.env -> Evd.evar_map -> function_info -> Pp.t

val pr_table : Environ.env -> Evd.evar_map -> Pp.t

val observe_tac :
  (Environ.env -> Evd.evar_map -> Pp.t) -> Tacmach.tactic -> Tacmach.tactic

module New : sig
  val observe_tac :
       header:Pp.t
    -> (Environ.env -> Evd.evar_map -> Pp.t)
    -> unit Proofview.tactic
    -> unit Proofview.tactic
end

(* val function_debug : bool ref  *)
val observe : Pp.t -> unit
val do_observe : unit -> bool
val do_rewrite_dependent : unit -> bool

(* To localize pb *)
exception Building_graph of exn
exception Defining_principle of exn
exception ToShow of exn

val is_strict_tcc : unit -> bool
val h_intros : Names.Id.t list -> unit Proofview.tactic
val h_id : Names.Id.t
val hrec_id : Names.Id.t
val acc_inv_id : EConstr.constr Util.delayed
val ltof_ref : GlobRef.t Util.delayed
val well_founded_ltof : EConstr.constr Util.delayed
val acc_rel : EConstr.constr Util.delayed
val well_founded : EConstr.constr Util.delayed

val evaluable_of_global_reference :
  GlobRef.t -> Tacred.evaluable_global_reference

val list_rewrite : bool -> (EConstr.constr * bool) list -> unit Proofview.tactic

val decompose_lam_n :
     Evd.evar_map
  -> int
  -> EConstr.t
  -> (Names.Name.t Context.binder_annot * EConstr.t) list * EConstr.t

val compose_lam :
  (Names.Name.t Context.binder_annot * EConstr.t) list -> EConstr.t -> EConstr.t

val compose_prod :
  (Names.Name.t Context.binder_annot * EConstr.t) list -> EConstr.t -> EConstr.t

type tcc_lemma_value = Undefined | Value of Constr.t | Not_needed

val funind_purify : ('a -> 'b) -> 'a -> 'b

val tac_type_of :
  Goal.goal Evd.sigma -> EConstr.constr -> Goal.goal Evd.sigma * EConstr.types
