Python: Raise an error even NO_MAIN data is assigned to object

The goal is to prevent assignment of temporary or evaluated meshes
to objects from the main database.

Majority of the change is actually related on passing reports around.

On a positive side there are more error prints which can become more
visible to scripters.

There are still possible further improvements in the related areas.
For example, disable user counting for evaluated ID datablocks when
assignment happens. But can also happen later on as a separate
improvement.

Reviewers: brecht, campbellbarton, mont29

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D4884

1 files changed, 9 insertions, 3 deletions

diff --git a/source/blender/makesrna/intern/rna_curve.c b/source/blender/makesrna/intern/rna_curve.c
index 9c7ad60f378..111e8956414 100644
--- a/source/blender/makesrna/intern/rna_curve.c
+++ b/source/blender/makesrna/intern/rna_curve.c
@@ -438,7 +438,9 @@ static PointerRNA rna_Curve_bevelObject_get(PointerRNA *ptr)
   return rna_pointer_inherit_refine(ptr, NULL, NULL);
 }
 
-static void rna_Curve_bevelObject_set(PointerRNA *ptr, PointerRNA value)
+static void rna_Curve_bevelObject_set(struct ReportList *UNUSED(reports),
+                                      PointerRNA *ptr,
+                                      PointerRNA value)
 {
   Curve *cu = (Curve *)ptr->id.data;
   Object *ob = (Object *)value.data;
@@ -481,7 +483,9 @@ static PointerRNA rna_Curve_taperObject_get(PointerRNA *ptr)
   return rna_pointer_inherit_refine(ptr, NULL, NULL);
 }
 
-static void rna_Curve_taperObject_set(PointerRNA *ptr, PointerRNA value)
+static void rna_Curve_taperObject_set(struct ReportList *UNUSED(reports),
+                                      PointerRNA *ptr,
+                                      PointerRNA value)
 {
   Curve *cu = (Curve *)ptr->id.data;
   Object *ob = (Object *)value.data;
@@ -730,7 +734,9 @@ static PointerRNA rna_Curve_active_spline_get(PointerRNA *ptr)
   return rna_pointer_inherit_refine(ptr, NULL, NULL);
 }
 
-static void rna_Curve_active_spline_set(PointerRNA *ptr, PointerRNA value)
+static void rna_Curve_active_spline_set(struct ReportList *UNUSED(reports),
+                                        PointerRNA *ptr,
+                                        PointerRNA value)
 {
   Curve *cu = (Curve *)ptr->data;
   Nurb *nu = value.data;