fix [#25748] Addons register parameters/functions more than once

- values were added to both the classes __dict__ as well as the internal StructRNA.
- made properties available from the type since this is where the python api assigns them:
>>> bpy.types.Scene.frame_start
<bpy_struct, IntProperty("frame_start")>
- rename RNA_struct_type_properties() -> RNA_struct_type_properties(), added RNA_struct_type_find_property()

1 files changed, 7 insertions, 1 deletions

diff --git a/source/blender/makesrna/intern/rna_access.c b/source/blender/makesrna/intern/rna_access.c
index cc2e5fc909f..15a26711d1c 100644
--- a/source/blender/makesrna/intern/rna_access.c
+++ b/source/blender/makesrna/intern/rna_access.c
@@ -569,11 +569,17 @@ PropertyRNA *RNA_struct_find_nested(PointerRNA *ptr, StructRNA *srna)
 	return prop;
 }
 
-const struct ListBase *RNA_struct_defined_properties(StructRNA *srna)
+/* low level direct access to type->properties, note this ignores parent classes so should be used with care */
+const struct ListBase *RNA_struct_type_properties(StructRNA *srna)
 {
 	return &srna->cont.properties;
 }
 
+PropertyRNA *RNA_struct_type_find_property(StructRNA *srna, const char *identifier)
+{
+	return BLI_findstring_ptr(&srna->cont.properties, identifier, offsetof(PropertyRNA, identifier));
+}
+
 FunctionRNA *RNA_struct_find_function(PointerRNA *ptr, const char *identifier)
 {
 #if 1