From: "Andrew F. Davis" <afd@ti.com>
To: Julia Lawall <Julia.Lawall@lip6.fr>,
Gilles Muller <Gilles.Muller@lip6.fr>,
Nicolas Palix <nicolas.palix@imag.fr>,
Michal Marek <mmarek@suse.com>
Cc: <cocci@systeme.lip6.fr>, <linux-kernel@vger.kernel.org>,
"Andrew F . Davis" <afd@ti.com>
Subject: [PATCH] Coccinelle: Add misc/boolconv.cocci
Date: Thu, 23 Jun 2016 13:53:52 -0500 [thread overview]
Message-ID: <20160623185352.25818-1-afd@ti.com> (raw)
Add a script to check for unneeded conversions to bool.
Signed-off-by: Andrew F. Davis <afd@ti.com>
---
scripts/coccinelle/misc/boolconv.cocci | 90 ++++++++++++++++++++++++++++++++++
1 file changed, 90 insertions(+)
create mode 100644 scripts/coccinelle/misc/boolconv.cocci
diff --git a/scripts/coccinelle/misc/boolconv.cocci b/scripts/coccinelle/misc/boolconv.cocci
new file mode 100644
index 0000000..33c464d
--- /dev/null
+++ b/scripts/coccinelle/misc/boolconv.cocci
@@ -0,0 +1,90 @@
+/// Remove unneeded conversion to bool
+///
+//# Relational and logical operators evaluate to bool,
+//# explicit conversion is overly verbose and unneeded.
+//
+// Copyright: (C) 2016 Andrew F. Davis <afd@ti.com> GPLv2.
+
+virtual patch
+virtual context
+virtual org
+virtual report
+
+//----------------------------------------------------------
+// For patch mode
+//----------------------------------------------------------
+
+@depends on patch@
+expression A, B;
+symbol true, false;
+@@
+
+(
+ A == B
+|
+ A != B
+|
+ A > B
+|
+ A < B
+|
+ A >= B
+|
+ A <= B
+|
+ A && B
+|
+ A || B
+)
+- ? true : false
+
+//----------------------------------------------------------
+// For context mode
+//----------------------------------------------------------
+
+@r depends on !patch@
+expression A, B;
+symbol true, false;
+position p;
+@@
+
+(
+ A == B
+|
+ A != B
+|
+ A > B
+|
+ A < B
+|
+ A >= B
+|
+ A <= B
+|
+ A && B
+|
+ A || B
+)
+* ? true : false@p
+
+//----------------------------------------------------------
+// For org mode
+//----------------------------------------------------------
+
+@script:python depends on r&&org@
+p << r.p;
+@@
+
+msg = "WARNING: conversion to bool not needed here"
+coccilib.org.print_todo(p[0], msg)
+
+//----------------------------------------------------------
+// For report mode
+//----------------------------------------------------------
+
+@script:python depends on r&&report@
+p << r.p;
+@@
+
+msg = "WARNING: conversion to bool not needed here"
+coccilib.report.print_report(p[0], msg)
--
2.9.0
next reply other threads:[~2016-06-23 18:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-23 18:53 Andrew F. Davis [this message]
2016-06-23 19:12 ` [PATCH] Coccinelle: Add misc/boolconv.cocci Joe Perches
2016-06-23 19:22 ` Andrew F. Davis
2016-06-26 22:01 ` Julia Lawall
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