Messages in this thread | | | Date | Wed, 23 Jan 2013 19:41:54 -0200 | Subject | Re: [PATCH] scripts/coccinelle/misc/semicolon.cocci: Add unneeded semicolon test | From | Peter Senna Tschudin <> |
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ping
On Sat, Dec 8, 2012 at 3:34 PM, Peter Senna Tschudin <peter.senna@gmail.com> wrote: > This semantic patch looks for semicolons that can be removed without > changing the semantics of the code. The confidence is moderate > because there are some false positives on cases like: > > b/drivers/mmc/host/cb710-mmc.c:589 > break; > case MMC_POWER_UP: > default: > - /* ignore */; > } > > There are 37 patches accepted reported by this semantic patch and > more than 300 fixes to be applied. > > Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> > --- > Resending unchanged. Last sent on November 13 2012. First sent on October 30 2012. > > scripts/coccinelle/misc/semicolon.cocci | 83 +++++++++++++++++++++++++++++++++ > 1 file changed, 83 insertions(+) > create mode 100644 scripts/coccinelle/misc/semicolon.cocci > > diff --git a/scripts/coccinelle/misc/semicolon.cocci b/scripts/coccinelle/misc/semicolon.cocci > new file mode 100644 > index 0000000..a47eba2 > --- /dev/null > +++ b/scripts/coccinelle/misc/semicolon.cocci > @@ -0,0 +1,83 @@ > +/// > +/// Removes unneeded semicolon. > +/// > +// Confidence: Moderate > +// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6. GPLv2. > +// URL: http://coccinelle.lip6.fr/ > +// Comments: Some false positives on empty default cases in switch statements. > +// Options: --no-includes --include-headers > + > +virtual patch > +virtual report > +virtual context > +virtual org > + > +@r_default@ > +position p; > +@@ > +switch (...) > +{ > +default: ...;@p > +} > + > +@r_case@ > +position p; > +@@ > +( > +switch (...) > +{ > +case ...:;@p > +} > +| > +switch (...) > +{ > +case ...:... > +case ...:;@p > +} > +| > +switch (...) > +{ > +case ...:... > +case ...: > +case ...:;@p > +} > +) > + > +@r1@ > +statement S; > +position p1; > +position p != {r_default.p, r_case.p}; > +identifier label; > +@@ > +( > +label:; > +| > +S@p1;@p > +) > + > +@script:python@ > +p << r1.p; > +p1 << r1.p1; > +@@ > +if p[0].line != p1[0].line_end: > + cocci.include_match(False) > + > +@depends on patch@ > +position r1.p; > +@@ > +-;@p > + > +@script:python depends on report@ > +p << r1.p; > +@@ > +coccilib.report.print_report(p[0],"Unneeded semicolon") > + > +@depends on context@ > +position r1.p; > +@@ > +*;@p > + > +@script:python depends on org@ > +p << r1.p; > +@@ > +cocci.print_main("Unneeded semicolon",p) > -- > 1.7.11.7 >
-- Peter
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