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1eddfd50 C |
1 | (* |
2 | * Copyright 2010, INRIA, University of Copenhagen | |
3 | * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix | |
4 | * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen | |
5 | * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix | |
6 | * This file is part of Coccinelle. | |
7 | * | |
8 | * Coccinelle is free software: you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, according to version 2 of the License. | |
11 | * | |
12 | * Coccinelle is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>. | |
19 | * | |
20 | * The authors reserve the right to distribute this or future versions of | |
21 | * Coccinelle under other licenses. | |
22 | *) | |
23 | ||
24 | ||
25 | (* evaluation of nested and and or using id-utils *) | |
26 | ||
27 | module GC = Get_constants2 | |
28 | ||
29 | let evaluated = Hashtbl.create(100) | |
30 | ||
31 | exception Out | |
32 | ||
33 | let memoize exp vl = Hashtbl.add evaluated exp vl; vl | |
34 | ||
35 | let rec interpret dir exp = | |
36 | let res = try Some (Hashtbl.find evaluated exp) with Not_found -> None in | |
37 | match res with | |
38 | Some x -> x | |
39 | | None -> | |
40 | memoize exp | |
41 | (match exp with | |
42 | GC.Elem oo -> | |
43 | let cmd = | |
44 | Printf.sprintf | |
45 | "lid -f %s/.id-utils.index -l %s -S newline" dir oo in | |
46 | Common.cmd_to_list cmd | |
47 | | GC.And l -> | |
48 | let rec loop = function | |
49 | [] -> failwith "bad and" | |
50 | | [x] -> interpret dir x | |
51 | | x :: xs -> | |
52 | (match interpret dir x with | |
53 | [] -> raise Out | |
54 | | resx -> | |
55 | let resxs = loop xs in | |
56 | Common.inter_set resx resxs) in | |
57 | (try loop l with Out -> []) | |
58 | | GC.Or l -> | |
59 | List.fold_left | |
60 | (function prev -> function cur -> | |
61 | Common.union_set (interpret dir cur) prev) | |
62 | [] l | |
63 | | _ -> failwith "not possible") |