parsing_cocci/adjacency.ml

   1 (*
   2  * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen
   3  * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
   4  * This file is part of Coccinelle.
   5  *
   6  * Coccinelle is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, according to version 2 of the License.
   9  *
  10  * Coccinelle is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with Coccinelle.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The authors reserve the right to distribute this or future versions of
  19  * Coccinelle under other licenses.
  20  *)
  21
  22
  23 module Ast0 = Ast0_cocci
  24 module V0 = Visitor_ast0
  25 module VT0 = Visitor_ast0_types
  26
  27 let compute_adjacency p =
  28   let counter = ref 0 in
  29   let mcode (a,b,c,d,e,_) = (a,b,c,d,e,!counter) in
  30   let string_mcode ((str,_,info,mc,_,_) as x) =
  31     match str with
  32       "..." | "<..." | "...>" | "<+..." | "...+>" ->
  33         (match mc with
  34           Ast0.MINUS _ -> mcode x
  35         | Ast0.CONTEXT _ -> counter := !counter + 1; x
  36         | _ -> failwith "unexpected mcode for ...")
  37     | _ -> mcode x in
  38   let fn =
  39     V0.rebuilder
  40       {V0.rebuilder_functions with
  41         VT0.rebuilder_meta_mcode = mcode;
  42         VT0.rebuilder_string_mcode = string_mcode;
  43         VT0.rebuilder_const_mcode = mcode;
  44         VT0.rebuilder_assign_mcode = mcode;
  45         VT0.rebuilder_fix_mcode = mcode;
  46         VT0.rebuilder_unary_mcode = mcode;
  47         VT0.rebuilder_binary_mcode = mcode;
  48         VT0.rebuilder_cv_mcode = mcode;
  49         VT0.rebuilder_sign_mcode = mcode;
  50         VT0.rebuilder_struct_mcode = mcode;
  51         VT0.rebuilder_storage_mcode = mcode;
  52         VT0.rebuilder_inc_mcode = mcode;} in
  53   List.map fn.VT0.rebuilder_rec_top_level p
  54