scripts/coccinelle/misc/boolconv.cocci

   1 /// Remove unneeded conversion to bool
   2 ///
   3 //# Relational and logical operators evaluate to bool,
   4 //# explicit conversion is overly verbose and unneeded.
   5 //
   6 // Copyright: (C) 2016 Andrew F. Davis <afd@ti.com> GPLv2.
   7
   8 virtual patch
   9 virtual context
  10 virtual org
  11 virtual report
  12
  13 //----------------------------------------------------------
  14 //  For patch mode
  15 //----------------------------------------------------------
  16
  17 @depends on patch@
  18 expression A, B;
  19 symbol true, false;
  20 @@
  21
  22 (
  23   A == B
  24 |
  25   A != B
  26 |
  27   A > B
  28 |
  29   A < B
  30 |
  31   A >= B
  32 |
  33   A <= B
  34 |
  35   A && B
  36 |
  37   A || B
  38 )
  39 - ? true : false
  40
  41 //----------------------------------------------------------
  42 //  For context mode
  43 //----------------------------------------------------------
  44
  45 @r depends on !patch@
  46 expression A, B;
  47 symbol true, false;
  48 position p;
  49 @@
  50
  51 (
  52   A == B
  53 |
  54   A != B
  55 |
  56   A > B
  57 |
  58   A < B
  59 |
  60   A >= B
  61 |
  62   A <= B
  63 |
  64   A && B
  65 |
  66   A || B
  67 )
  68 * ? true : false@p
  69
  70 //----------------------------------------------------------
  71 //  For org mode
  72 //----------------------------------------------------------
  73
  74 @script:python depends on r&&org@
  75 p << r.p;
  76 @@
  77
  78 msg = "WARNING: conversion to bool not needed here"
  79 coccilib.org.print_todo(p[0], msg)
  80
  81 //----------------------------------------------------------
  82 //  For report mode
  83 //----------------------------------------------------------
  84
  85 @script:python depends on r&&report@
  86 p << r.p;
  87 @@
  88
  89 msg = "WARNING: conversion to bool not needed here"
  90 coccilib.report.print_report(p[0], msg)