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(**************************************************************************)
(* *)
(* This file is part of WP plug-in of Frama-C. *)
(* *)
(* CEA (Commissariat a l'energie atomique et aux energies *)
(* alternatives) *)
(* *)
(* you can redistribute it and/or modify it under the terms of the GNU *)
(* Lesser General Public License as published by the Free Software *)
(* Foundation, version 2.1. *)
(* *)
(* It is distributed in the hope that it will be useful, *)
(* but WITHOUT ANY WARRANTY; without even the implied warranty of *)
(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *)
(* GNU Lesser General Public License for more details. *)
(* *)
(* See the GNU Lesser General Public License version 2.1 *)
(* for more details (enclosed in the file licenses/LGPLv2.1). *)
(* *)
(**************************************************************************)
(* -------------------------------------------------------------------------- *)
(** Interactive Proof Engine *)
(* -------------------------------------------------------------------------- *)
type tree (** A proof tree *)
type node (** A proof node *)
val get : Wpo.t -> [ `Script | `Proof | `Saved | `None ]
val proof : main:Wpo.t -> tree
val reset : tree -> unit
val remove : Wpo.t -> unit
val validate : ?incomplete:bool -> tree -> unit
(** Leaves are numbered from 0 to n-1 *)
type status = [ `Main | `Invalid | `Proved | `Pending of int ]
type current = [ `Main | `Internal of node | `Leaf of int * node ]
type position = [ `Main | `Node of node | `Leaf of int ]
val pool : tree -> Lang.F.pool
val saved : tree -> bool
val set_saved : tree -> bool -> unit
val status : tree -> status
val current : tree -> current
val goto : tree -> position -> unit
val main : tree -> Wpo.t
val head : tree -> Wpo.t
val goal : node -> Wpo.t
val tree_context : tree -> WpContext.t
val node_context : node -> WpContext.t
val title : node -> string
val proved : node -> bool
val pending : node -> int (** 0 means proved *)
val parent : node -> node option
val children : node -> (string * node) list
val tactical : node -> ProofScript.jtactic option
val get_strategies : node -> int * Strategy.t array (* current index *)
val set_strategies : node -> ?index:int -> Strategy.t array -> unit
val forward : tree -> unit
val cancel : tree -> unit
type fork
val anchor : tree -> ?node:node -> unit -> node
val fork : tree -> anchor:node -> ProofScript.jtactic -> Tactical.process -> fork
val iter : (Wpo.t -> unit) -> fork -> unit
val commit : fork -> node * (string * node) list
val pretty : Format.formatter -> fork -> unit
val script : tree -> ProofScript.jscript
val bind : node -> ProofScript.jscript -> unit
val bound : node -> ProofScript.jscript