| 1 | (* |
| 2 | * Copyright 2012, INRIA |
| 3 | * Julia Lawall, Gilles Muller |
| 4 | * Copyright 2010-2011, INRIA, University of Copenhagen |
| 5 | * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix |
| 6 | * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen |
| 7 | * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix |
| 8 | * This file is part of Coccinelle. |
| 9 | * |
| 10 | * Coccinelle is free software: you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation, according to version 2 of the License. |
| 13 | * |
| 14 | * Coccinelle is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>. |
| 21 | * |
| 22 | * The authors reserve the right to distribute this or future versions of |
| 23 | * Coccinelle under other licenses. |
| 24 | *) |
| 25 | |
| 26 | |
| 27 | # 0 "./id_utils.ml" |
| 28 | (* evaluation of nested and and or using id-utils *) |
| 29 | |
| 30 | module GC = Get_constants2 |
| 31 | |
| 32 | let evaluated = Hashtbl.create(100) |
| 33 | |
| 34 | exception Out |
| 35 | |
| 36 | let memoize exp vl = Hashtbl.add evaluated exp vl; vl |
| 37 | |
| 38 | let rec interpret dir exp = |
| 39 | let res = try Some (Hashtbl.find evaluated exp) with Not_found -> None in |
| 40 | match res with |
| 41 | Some x -> x |
| 42 | | None -> |
| 43 | memoize exp |
| 44 | (match exp with |
| 45 | GC.Elem oo -> |
| 46 | let cmd = |
| 47 | Printf.sprintf |
| 48 | "lid -f %s/.id-utils.index -l %s -S newline" dir oo in |
| 49 | Common.cmd_to_list cmd |
| 50 | | GC.And l -> |
| 51 | let rec loop = function |
| 52 | [] -> failwith "bad and" |
| 53 | | [x] -> interpret dir x |
| 54 | | x :: xs -> |
| 55 | (match interpret dir x with |
| 56 | [] -> raise Out |
| 57 | | resx -> |
| 58 | let resxs = loop xs in |
| 59 | Common.inter_set resx resxs) in |
| 60 | (try loop l with Out -> []) |
| 61 | | GC.Or l -> |
| 62 | List.fold_left |
| 63 | (function prev -> function cur -> |
| 64 | Common.union_set (interpret dir cur) prev) |
| 65 | [] l |
| 66 | | _ -> failwith "not possible") |