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Diffstat (limited to 'scripts/coccinelle/tests/doublebitand.cocci')
| -rw-r--r-- | scripts/coccinelle/tests/doublebitand.cocci | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/scripts/coccinelle/tests/doublebitand.cocci b/scripts/coccinelle/tests/doublebitand.cocci new file mode 100644 index 000000000..025436a15 --- /dev/null +++ b/scripts/coccinelle/tests/doublebitand.cocci @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0-only +/// Find bit operations that include the same argument more than once +//# One source of false positives is when the argument performs a side +//# effect. Another source of false positives is when a neutral value +//# such as 0 for | is used to indicate no information, to maintain the +//# same structure as other similar expressions +/// +// Confidence: Moderate +// Copyright: (C) 2010 Nicolas Palix, DIKU. +// Copyright: (C) 2010 Julia Lawall, DIKU. +// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. +// URL: https://coccinelle.gitlabpages.inria.fr/website +// Comments: +// Options: --no-includes --include-headers + +virtual context +virtual org +virtual report + +@r expression@ +expression E; +position p; +@@ + +( +* E@p + & ... & E +| +* E@p + | ... | E +| +* E@p + & ... & !E +| +* E@p + | ... | !E +| +* !E@p + & ... & E +| +* !E@p + | ... | E +) + +@script:python depends on org@ +p << r.p; +@@ + +cocci.print_main("duplicated argument to & or |",p) + +@script:python depends on report@ +p << r.p; +@@ + +coccilib.report.print_report(p[0],"duplicated argument to & or |") |