From 97c1cf8fdbce332bfacc3e38aae3fe2af1369906 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 24 Oct 2010 23:37:32 +0200 Subject: Coccinelle: Find doubled arguments to boolean or bit operators. Signed-off-by: Julia Lawall Signed-off-by: Nicolas Palix Signed-off-by: Michal Marek --- scripts/coccinelle/tests/doublebitand.cocci | 54 +++++++++++++++++++++++++++++ scripts/coccinelle/tests/doubletest.cocci | 40 +++++++++++++++++++++ 2 files changed, 94 insertions(+) create mode 100644 scripts/coccinelle/tests/doublebitand.cocci create mode 100644 scripts/coccinelle/tests/doubletest.cocci (limited to 'scripts/coccinelle/tests') diff --git a/scripts/coccinelle/tests/doublebitand.cocci b/scripts/coccinelle/tests/doublebitand.cocci new file mode 100644 index 000000000000..9ba73d05a77e --- /dev/null +++ b/scripts/coccinelle/tests/doublebitand.cocci @@ -0,0 +1,54 @@ +/// 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. 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 +| +* 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 |") diff --git a/scripts/coccinelle/tests/doubletest.cocci b/scripts/coccinelle/tests/doubletest.cocci new file mode 100644 index 000000000000..13a2c0e8a4bf --- /dev/null +++ b/scripts/coccinelle/tests/doubletest.cocci @@ -0,0 +1,40 @@ +/// Find &&/|| operations that include the same argument more than once +//# A common source of false positives is when the argument 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 +) + +@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 ||") -- cgit v1.2.3