package frama-c

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Source file Occurrence.ml

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(**************************************************************************)
(*                                                                        *)
(*  SPDX-License-Identifier LGPL-2.1                                      *)
(*  Copyright (C)                                                         *)
(*  CEA (Commissariat à l'énergie atomique et aux énergies alternatives)  *)
(*                                                                        *)
(**************************************************************************)

(** Occurrence plug-in. *)
open Cil_types

(** Interface for the occurrence plugin. *)
module Register: sig
  val self: State.t
  val get_last_result:
    unit -> ((kernel_function option * kinstr * lval) list * varinfo) option
  val get: (varinfo -> (kernel_function option * kinstr * lval) list)
  (** Return the occurrences of the given varinfo.
      An occurrence [ki, lv] is a left-value [lv] which uses the location of
      [vi] at the position [ki]. *)

  val print_all: (unit -> unit)
  (** Print all the occurrence of each variable declarations. *)

  (* {2 Internal Use Only}*)

  type access_type = Read | Write | Both

  val classify_accesses: kernel_function option * kinstr *lval -> access_type
end = Register