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9f8e26f4 C |
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 | ||
951c7801 C |
23 | module Ast = Ast_cocci |
24 | module Past = Ast_popl | |
25 | ||
26 | (* --------------------------------------------------------------------- *) | |
27 | ||
28 | let term s inif = | |
29 | let fail _ = | |
30 | Pretty_print_cocci.statement "" s; | |
31 | Format.print_newline(); | |
32 | failwith "complex statements not supported" in | |
33 | match Ast.unwrap s with | |
34 | Ast.Atomic(ast) -> | |
35 | (match Ast.unwrap ast with | |
36 | Ast.ExprStatement(_,_) -> Past.Atomic ast | |
37 | | Ast.Exp(_) -> Past.Atomic ast | |
38 | | Ast.Decl(_,_,_) -> Past.Atomic ast | |
39 | | Ast.ReturnExpr(_,_,_) -> Past.Atomic ast | |
40 | | Ast.MetaStmt(_,_,_,_) when inif -> Past.Atomic ast | |
41 | | Ast.DisjRuleElem(_) -> Past.Atomic ast | |
42 | | _ -> fail()) | |
43 | | _ -> fail() | |
44 | ||
45 | let rec stm s = | |
46 | match Ast.unwrap s with | |
47 | Ast.Atomic(ast) -> Past.Term(term s false,dots_bef_aft s false) | |
48 | | Ast.IfThen(header,body,aft) -> | |
49 | Past.Term( | |
50 | Past.IfThen(Past.Atomic header,term body true,aft), | |
51 | dots_bef_aft s true) | |
52 | | Ast.Disj(stm1::stm2::stmts) -> | |
53 | List.fold_left | |
54 | (function prev -> | |
55 | function cur -> | |
56 | Past.Or(Past.Seq(prev,Past.Empty),stm_list cur)) | |
57 | (Past.Or(stm_list stm1,stm_list stm2)) stmts | |
58 | | Ast.Dots(dots,whencodes,_,_) -> | |
59 | Past.DInfo | |
60 | (List.fold_left | |
61 | (function prev -> | |
62 | function | |
63 | Ast.WhenNot(a) -> Past.When(prev,stm_list a) | |
64 | | _ -> failwith "only when != supported") | |
65 | Past.Dots whencodes) | |
66 | | Ast.Nest(stmt_dots,whencodes,false,_,_) -> | |
67 | let nest = Past.Nest(stm_list stmt_dots) in | |
68 | Past.DInfo | |
69 | (List.fold_left | |
70 | (function prev -> | |
71 | function | |
72 | Ast.WhenNot(a) -> Past.When(prev,stm_list a) | |
73 | | _ -> failwith "only when != supported") | |
74 | nest whencodes) | |
75 | | _ -> | |
76 | Pretty_print_cocci.statement "" s; | |
77 | failwith "unsupported statement3" | |
78 | ||
79 | and dots_bef_aft s inif = | |
80 | match Ast.get_dots_bef_aft s with | |
81 | Ast.AddingBetweenDots (brace_term,n) -> | |
82 | Past.AddingBetweenDots (term brace_term inif,n) | |
83 | | Ast.DroppingBetweenDots (brace_term,n) -> | |
84 | Past.DroppingBetweenDots (term brace_term inif,n) | |
85 | | Ast.NoDots -> Past.NoDots | |
86 | ||
87 | and stm_list s = | |
88 | match Ast.unwrap s with | |
89 | Ast.DOTS(d) -> | |
90 | List.fold_right | |
91 | (function cur -> function rest -> Past.Seq(stm cur, rest)) | |
92 | d Past.Empty | |
93 | | _ -> failwith "only DOTS handled" | |
94 | ||
95 | let top s = | |
96 | match Ast.unwrap s with | |
97 | Ast.CODE(stmt_dots) -> stm_list stmt_dots | |
98 | | _ -> failwith "only CODE handled" |