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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id$ i*)
(*i*)
open Util
open Names
open Libnames
(*i*)
(* Abstract syntax trees. *)
type t =
| Node of loc * string * t list
| Nmeta of loc * string
| Nvar of loc * identifier
| Slam of loc * identifier option * t
| Smetalam of loc * string * t
| Num of loc * int
| Str of loc * string
| Id of loc * string
| Path of loc * kernel_name
| Dynamic of loc * Dyn.t
(* returns the list of metas occuring in the ast *)
val collect_metas : t -> int list
(* [subst_meta bl ast]: for each binding [(i,c_i)] in [bl],
replace the metavar [?i] by [c_i] in [ast] *)
val subst_meta : (int * t) list -> t -> t
(* hash-consing function *)
val hcons_ast:
(string -> string) * (Names.identifier -> Names.identifier)
* (kernel_name -> kernel_name)
-> (t -> t) * (loc -> loc)
val subst_ast: Names.substitution -> t -> t
(*
val map_tactic_expr : (t -> t) -> (tactic_expr -> tactic_expr) -> tactic_expr -> tactic_expr
val fold_tactic_expr :
('a -> t -> 'a) -> ('a -> tactic_expr -> 'a) -> 'a -> tactic_expr -> 'a
val iter_tactic_expr : (tactic_expr -> unit) -> tactic_expr -> unit
*)
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