popl/asttopopl.ml

   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 "./asttopopl.ml"
  28 (*
  29  * Copyright 2012, INRIA
  30  * Julia Lawall, Gilles Muller
  31  * Copyright 2010-2011, INRIA, University of Copenhagen
  32  * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix
  33  * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen
  34  * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
  35  * This file is part of Coccinelle.
  36  *
  37  * Coccinelle is free software: you can redistribute it and/or modify
  38  * it under the terms of the GNU General Public License as published by
  39  * the Free Software Foundation, according to version 2 of the License.
  40  *
  41  * Coccinelle is distributed in the hope that it will be useful,
  42  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  43  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  44  * GNU General Public License for more details.
  45  *
  46  * You should have received a copy of the GNU General Public License
  47  * along with Coccinelle.  If not, see <http://www.gnu.org/licenses/>.
  48  *
  49  * The authors reserve the right to distribute this or future versions of
  50  * Coccinelle under other licenses.
  51  *)
  52
  53
  54 # 0 "./asttopopl.ml"
  55 module Ast = Ast_cocci
  56 module Past = Ast_popl
  57
  58 (* --------------------------------------------------------------------- *)
  59
  60 let rec stm s =
  61   match Ast.unwrap s with
  62     Ast.Atomic(ast) ->
  63       (match Ast.unwrap ast with
  64         Ast.ExprStatement(_,_) -> Past.Term ast
  65       | Ast.Exp(_) -> Past.Term ast
  66       | Ast.Decl(_,_,_) -> Past.Term ast
  67       | _ -> failwith "complex statements not supported")
  68   | Ast.Disj(stm1::stm2::stmts) ->
  69       List.fold_left
  70         (function prev ->
  71           function cur ->
  72             Past.Or(Past.Seq(prev,Past.Empty),stm_list cur))
  73         (Past.Or(stm_list stm1,stm_list stm2)) stmts
  74   | Ast.Dots(dots,whencodes,_,_) ->
  75       (match whencodes with
  76         [Ast.WhenNot(a)] -> Past.DInfo(Past.When(Past.Dots,stm_list a),[],[])
  77       | _ -> failwith "only one when != supported")
  78   | Ast.Nest(stmt_dots,whencodes,false,_,_) ->
  79       let nest = Past.Nest(stm_list stmt_dots) in
  80       (match whencodes with
  81         [Ast.WhenNot(a)] -> Past.DInfo(Past.When(nest,stm_list a),[],[])
  82       | _ -> failwith "only when != supported")
  83   | Ast.While(header,body,(_,_,_,aft)) | Ast.For(header,body,(_,_,_,aft)) ->
  84       (* only allowed if only the header is significant *)
  85       (match (Ast.unwrap body,aft) with
  86         (Ast.Atomic(re),Ast.CONTEXT(_,Ast.NOTHING)) ->
  87           (match Ast.unwrap re with
  88             Ast.MetaStmt(_,Type_cocci.Unitary,_,false) -> Past.Term header
  89           | _ -> failwith "unsupported statement1")
  90       | _ -> failwith "unsupported statement2")
  91   | _ ->
  92       Pretty_print_cocci.statement "" s;
  93       failwith "unsupported statement3"
  94
  95 and stm_list s =
  96   match Ast.unwrap s with
  97     Ast.DOTS(d) ->
  98       List.fold_right
  99         (function cur -> function rest -> Past.Seq(stm cur, rest))
 100         d Past.Empty
 101   | _ -> failwith "only DOTS handled"
 102
 103 let top s =
 104   match Ast.unwrap s with
 105     Ast.CODE(stmt_dots) -> stm_list stmt_dots
 106   | _ -> failwith "only CODE handled"