package mopsa

  1. Overview
  2. Docs
package mopsa
Legend:
Page
Library
Module
Module type
Parameter
Class
Class type
Source

Source file switch.ml

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
(****************************************************************************)
(*                                                                          *)
(* This file is part of MOPSA, a Modular Open Platform for Static Analysis. *)
(*                                                                          *)
(* Copyright (C) 2017-2019 The MOPSA Project.                               *)
(*                                                                          *)
(* This program is free software: 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, either version 3 of the License, or     *)
(* (at your option) any later version.                                      *)
(*                                                                          *)
(* This program 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.                      *)
(*                                                                          *)
(* You should have received a copy of the GNU Lesser General Public License *)
(* along with this program.  If not, see <http://www.gnu.org/licenses/>.    *)
(*                                                                          *)
(****************************************************************************)


(** Switch combiner *)

open Core.All
open Sig.Combiner.Stacked
open Common
open Mopsa_utils


module Make
    (D1:STACKED_COMBINER)
    (D2:STACKED_COMBINER)
  : STACKED_COMBINER with type t = D1.t * D2.t
=
struct

  (**************************************************************************)
  (**                         {2 Domain header}                             *)
  (**************************************************************************)

  type t = D1.t * D2.t

  let id = C_pair(Sequence,D1.id,D2.id)

  let name = D1.name ^ " ; " ^ D2.name

  let domains = DomainSet.union D1.domains D2.domains

  let semantics = SemanticSet.union D1.semantics D2.semantics

  let routing_table =
    let t = join_routing_table D1.routing_table D2.routing_table in
    DomainSet.fold
      (fun d1 acc -> add_routes (Below d1) D2.domains acc)
      D1.domains t

  let checks = D1.checks @ D2.checks |> List.sort_uniq compare

  let bottom = D1.bottom, D2.bottom

  let top = D1.top, D2.top

  let is_bottom (a1,a2) =
    D1.is_bottom a1 ||
    D2.is_bottom a2


  (**************************************************************************)
  (**                      {2 Lattice operators}                            *)
  (**************************************************************************)

  let subset man ctx ((a1,a2),s) ((a1',a2'),s') =
    let b1, s, s' = D1.subset (fst_pair_man man) ctx (a1,s) (a1',s') in
    let b2, s, s' = D2.subset (snd_pair_man man) ctx (a2,s) (a2',s') in
    b1 && b2, s, s'

  let join man ctx ((a1,a2),s) ((a1',a2'),s') =
    let aa1, s, s' = D1.join (fst_pair_man man) ctx (a1,s) (a1',s') in
    let aa2, s, s' = D2.join (snd_pair_man man) ctx (a2,s) (a2',s') in
    (aa1,aa2), s, s'

  let meet man ctx ((a1,a2),s) ((a1',a2'),s') =
    let aa1, s, s' = D1.meet (fst_pair_man man) ctx (a1,s) (a1',s') in
    let aa2, s, s' = D2.meet (snd_pair_man man) ctx (a2,s) (a2',s') in
    (aa1,aa2), s, s'

  let widen man ctx ((a1,a2),s) ((a1',a2'),s') =
    let aa1, s, s', stable1 = D1.widen (fst_pair_man man) ctx (a1,s) (a1',s') in
    let aa2, s, s', stable2 = D2.widen (snd_pair_man man) ctx (a2,s) (a2',s') in
    (aa1,aa2), s, s', stable1 && stable2

  let merge (pre1,pre2) ((a1,a2), te) ((a1',a2'), te') =
    D1.merge pre1 (a1, get_left_teffect te) (a1', get_left_teffect te'),
    D2.merge pre2 (a2, get_right_teffect te) (a2', get_right_teffect te')



  (**************************************************************************)
  (**                      {2 Transfer functions}                           *)
  (**************************************************************************)

  (** Initialization procedure *)
  let init prog man flow =
    D1.init prog (fst_pair_man man) flow |>
    D2.init prog (snd_pair_man man)

  
  (** Execution of statements *)
  let exec targets = cascade_call targets D1.exec D1.domains D2.exec D2.domains

  (** Evaluation of expressions *)
  let eval targets = cascade_call targets D1.eval D1.domains D2.eval D2.domains

  (** Query handler *)
  let ask targets = broadcast_call targets D1.ask D1.domains D2.ask D2.domains

  (** Pretty printer of states *)
  let print_state targets =
    match sat_targets ~targets ~domains:D1.domains,
          sat_targets ~targets ~domains:D2.domains
    with
    | false, false -> raise Not_found

    | true, false ->
      let f = D1.print_state targets in
      (fun printer (a1,_) ->
         f printer a1)

    | false, true ->
      let f = D2.print_state targets in
      (fun printer (_,a2) ->
         f printer a2)

    | true, true ->
      let f1 = D1.print_state targets in
      let f2 = D2.print_state targets in
      (fun printer (a1,a2) ->
         f1 printer a1;
         f2 printer a2
      )


  (** Pretty printer of expressions *)
  let print_expr targets =
    match sat_targets ~targets ~domains:D1.domains,
          sat_targets ~targets ~domains:D2.domains
    with
    | false, false -> raise Not_found

    | true, false ->
      let f = D1.print_expr targets in
      (fun man flow printer e ->
         f (fst_pair_man man) flow printer e)

    | false, true ->
      let f = D2.print_expr targets in
      (fun man flow printer e ->
         f (snd_pair_man man) flow printer e)

    | true, true ->
      let f1 = D1.print_expr targets in
      let f2 = D2.print_expr targets in
      (fun man flow printer e ->
         f1 (fst_pair_man man) flow printer e;
         f2 (snd_pair_man man) flow printer e
      )

end


let rec make (domains:(module STACKED_COMBINER) list) : (module STACKED_COMBINER) =
  match domains with
  | [] -> assert false
  | [d] -> d
  | l ->
    let a,b = ListExt.split l in
    let aa, bb = make a, make b in
    (module Make(val aa : STACKED_COMBINER)(val bb : STACKED_COMBINER))
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct