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.
v3: Further improvements from Julia. In particular, it now also does
header files.
scripts/coccinelle/misc/boolreturn.cocci | 58 ++++++++++++++++++++++++++++++
1 file changed, 58 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..a43c7b0
--- /dev/null
+++ b/scripts/coccinelle/misc/boolreturn.cocci
@@ -0,0 +1,58 @@
+/// Return statements in functions returning bool should use
+/// true/false instead of 1/0.
+//
+// Confidence: High
+// Options: --no-includes --include-headers
+
+virtual patch
+virtual report
+virtual context
+
+@r1 depends on patch@
+identifier fn;
+typedef bool;
+symbol false;
+symbol true;
+@@
+
+bool fn ( ... )
+{
+<...
+return
+(
+- 0
++ false
+|
+- 1
++ true
+)
+ ;
+...>
+}
+
+@r2 depends on report || context@
+identifier fn;
+position p;
+@@
+
+bool fn ( ... )
+{
+<...
+return
+(
+* 0@p
+|
+* 1@p
+)
+ ;
+...>
+}
+
+
+@script:python depends on report@
+p << r2.p;
+fn << r2.fn;
+@@
+
+msg = "WARNING: return of 0/1 in function '%s' with return type bool" % fn
+coccilib.report.print_report(p[0], msg)
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
