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Coccinelle: Add misc/boolconv.cocci

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Add a script to check for unneeded conversions to bool.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.com>
This commit is contained in:
Andrew F. Davis 2016-10-17 11:52:24 -05:00 committed by Michal Marek
parent 1001354ca3
commit 75238b9e6a
1 changed files with 90 additions and 0 deletions
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90
scripts/coccinelle/misc/boolconv.cocci Normal file
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@ -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)