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-rw-r--r--scripts/coccinelle/qom-parent-type.cocci26
1 files changed, 26 insertions, 0 deletions
diff --git a/scripts/coccinelle/qom-parent-type.cocci b/scripts/coccinelle/qom-parent-type.cocci
new file mode 100644
index 0000000000..9afb3edd97
--- /dev/null
+++ b/scripts/coccinelle/qom-parent-type.cocci
@@ -0,0 +1,26 @@
+// Highlight object declarations that don't look like object class but
+// accidentally inherit from it.
+
+@match@
+identifier obj_t, fld;
+type parent_t =~ ".*Class$";
+@@
+struct obj_t {
+ parent_t fld;
+ ...
+};
+
+@script:python filter depends on match@
+obj_t << match.obj_t;
+@@
+is_class_obj = obj_t.endswith('Class')
+cocci.include_match(not is_class_obj)
+
+@replacement depends on filter@
+identifier match.obj_t, match.fld;
+type match.parent_t;
+@@
+struct obj_t {
+* parent_t fld;
+ ...
+};