1 // SPDX-License-Identifier: GPL-2.0-only
2 /// Find &&/|| operations that include the same argument more than once
3 //# A common source of false positives is when the expression, or
4 //# another expresssion in the same && or || operation, performs a
5 //# side effect.
6 ///
7 // Confidence: Moderate
8 // Copyright: (C) 2010 Nicolas Palix, DIKU.
9 // Copyright: (C) 2010 Julia Lawall, DIKU.
10 // Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
11 // URL: https://coccinelle.gitlabpages.inria.fr/website
12 // Comments:
13 // Options: --no-includes --include-headers
14
15 virtual context
16 virtual org
17 virtual report
18
19 @r expression@
20 expression E;
21 position p;
22 @@
23
24 (
25 E@p || ... || E
26 |
27 E@p && ... && E
28 )
29
30 @bad@
31 expression r.E,e1,e2,fn;
32 position r.p;
33 assignment operator op;
34 @@
35
36 (
37 E@p
38 &
39 <+... \(fn(...)\|e1 op e2\|e1++\|e1--\|++e1\|--e1\) ...+>
40 )
41
42 @depends on context && !bad@
43 expression r.E;
44 position r.p;
45 @@
46
47 *E@p
48
49 @script:python depends on org && !bad@
50 p << r.p;
51 @@
52
53 cocci.print_main("duplicated argument to && or ||",p)
54
55 @script:python depends on report && !bad@
56 p << r.p;
57 @@
58
59 coccilib.report.print_report(p[0],"duplicated argument to && or ||")
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