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Diffstat (limited to 'scripts/coccinelle/tests/doubletest.cocci')
| -rw-r--r-- | scripts/coccinelle/tests/doubletest.cocci | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/scripts/coccinelle/tests/doubletest.cocci b/scripts/coccinelle/tests/doubletest.cocci new file mode 100644 index 000000000..7af2ce7eb --- /dev/null +++ b/scripts/coccinelle/tests/doubletest.cocci @@ -0,0 +1,58 @@ +/// Find &&/|| operations that include the same argument more than once +//# A common source of false positives is when the expression, or +//# another expresssion in the same && or || operation, performs a +//# side effect. +/// +// Confidence: Moderate +// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2. +// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2. +// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2. +// URL: http://coccinelle.lip6.fr/ +// Comments: +// Options: --no-includes --include-headers + +virtual context +virtual org +virtual report + +@r expression@ +expression E; +position p; +@@ + +( + E@p || ... || E +| + E@p && ... && E +) + +@bad@ +expression r.E,e1,e2,fn; +position r.p; +assignment operator op; +@@ + +( +E@p +& + <+... \(fn(...)\|e1 op e2\|e1++\|e1--\|++e1\|--e1\) ...+> +) + +@depends on context && !bad@ +expression r.E; +position r.p; +@@ + +*E@p + +@script:python depends on org && !bad@ +p << r.p; +@@ + +cocci.print_main("duplicated argument to && or ||",p) + +@script:python depends on report && !bad@ +p << r.p; +@@ + +coccilib.report.print_report(p[0],"duplicated argument to && or ||") |