This semantic patch replaces "return {0,1};" with "return
{false,true};" in functions returning bool.
Signed-off-by: Rasmus Villemoes <li...@rasmusvillemoes.dk>
---
v2: Simplified script, and eliminate whitespace mangling at the same
time. Thanks to Julia Lawall.
scripts/coccinelle/misc/boolreturn.cocci | 56 ++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 scripts/coccinelle/misc/boolreturn.cocci
diff --git a/scripts/coccinelle/misc/boolreturn.cocci
b/scripts/coccinelle/misc/boolreturn.cocci
new file mode 100644
index 0000000..c8d494c
--- /dev/null
+++ b/scripts/coccinelle/misc/boolreturn.cocci
@@ -0,0 +1,56 @@
+/// Return statements in functions returning bool should use
+/// true/false instead of 1/0.
+//
+// Confidence: High
+
+virtual patch
+virtual report
+
+
+@r1 depends on patch@
+identifier fn;
+typedef bool;
+symbol false;
+symbol true;
+@@
+
+bool fn ( ... )
+{
+...
+return
+(
+- 0
++ false
+|
+- 1
++ true
+)
+ ;
+...
+}
+
+@r2 depends on !patch@
+identifier fn;
+position p;
+@@
+
+bool fn ( ... )
+{
+ ...
+return
+(
+* 0@p
+|
+* 1@p
+)
+ ;
+ ...
+}
+
+
+@script:python depends on report@
+p << r2.p;
+fn << r2.fn;
+@@
+
+coccilib.report.print_report(p[0], "WARNING: return of 0/1 in function '%s'
with return type bool" % fn)
--
1.7.9.5
--
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