package mopsa

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

Source file inlining.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
(****************************************************************************)
(*                                                                          *)
(* 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/>.    *)
(*                                                                          *)
(****************************************************************************)

(** Inter-procedural iterator by inlining.  *)

open Mopsa
open Sig.Abstraction.Stateless
open Ast
open Common


(** {2 Domain definition} *)
(** ===================== *)

module Domain =
struct

  (** Domain identification *)
  (** ===================== *)

  include GenStatelessDomainId(struct
      let name = "universal.iterators.interproc.inlining"
    end)


  let checks = []

  (** Command-line options *)
  (** ==================== *)

  let () =
    import_shared_option
      "universal.iterators.interproc.common.renaming"
      name

  (** Initialization *)
  (** ============== *)

  let init prog man (flow: 'a flow) =
    Flow.set_ctx (
      Flow.get_ctx flow |>
      add_ctx Context.callstack_ctx_key empty_callstack
    ) flow |>
    Post.return |>
    Option.some

  (** Computation of post-conditions *)
  (** ============================== *)

  let exec stmt man flow =
    let range = stmt.srange in
    match skind stmt with
    | S_return (Some e) ->
      let ret = find_ctx return_key (Flow.get_ctx flow) in
      let flow = man.exec (mk_add_marker (M_return range) range) flow |> post_to_flow man in
      man.exec (mk_add_var ret range) flow >>%? fun flow ->
      man.exec (mk_assign (mk_var ret range) e range) flow >>%? fun flow ->
      let cur = Flow.get T_cur man.lattice flow in
      Flow.add (T_return (range)) cur man.lattice flow |>
      Flow.remove T_cur |>
      Post.return |> OptionExt.return

    | S_return None ->
      let flow = man.exec (mk_add_marker (M_return range) range) flow |> post_to_flow man in
      let cur = Flow.get T_cur man.lattice flow in
      Flow.add (T_return range) cur man.lattice flow |>
      Flow.remove T_cur |>
      Post.return |> OptionExt.return

    | _ -> None



  (** Evaluation of expressions *)
  (** ========================= *)
  let eval exp man flow =
    let range = erange exp in
    match ekind exp with
    | E_call({ekind = E_function (User_defined f)}, args) ->

      if man.lattice.is_bottom (Flow.get T_cur man.lattice flow)
      then Cases.empty flow |> OptionExt.return
      else

      let params, locals, body, post = init_fun_params f args range man flow in
      let ret = match f.fun_return_type with
        | None -> None
        | Some _ ->
          match f.fun_return_var with
          | Some v -> Some v
          | None   -> Some (mk_return exp)
      in
      post >>% inline f params locals body ret range man |>
      Option.some

    | _ -> None

  let ask _ _ _ = None

  let print_expr _ _ _ _ = ()

end


let () =
  register_stateless_domain (module Domain)
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