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, 6 insertions, 2 deletions

diff --git a/source/blender/makesrna/intern/rna_material.c b/source/blender/makesrna/intern/rna_material.c
index edfdbe293a3..93dc7febd32 100644
--- a/source/blender/makesrna/intern/rna_material.c
+++ b/source/blender/makesrna/intern/rna_material.c
@@ -330,7 +330,9 @@ static int rna_GpencilColorData_is_fill_visible_get(PointerRNA *ptr)
   return ((pcolor->fill_rgba[3] > GPENCIL_ALPHA_OPACITY_THRESH) || (pcolor->fill_style > 0));
 }
 
-static void rna_GpencilColorData_stroke_image_set(PointerRNA *ptr, PointerRNA value)
+static void rna_GpencilColorData_stroke_image_set(struct ReportList *UNUSED(reports),
+                                                  PointerRNA *ptr,
+                                                  PointerRNA value)
 {
   MaterialGPencilStyle *pcolor = ptr->data;
   ID *id = value.data;
@@ -339,7 +341,9 @@ static void rna_GpencilColorData_stroke_image_set(PointerRNA *ptr, PointerRNA va
   pcolor->sima = (struct Image *)id;
 }
 
-static void rna_GpencilColorData_fill_image_set(PointerRNA *ptr, PointerRNA value)
+static void rna_GpencilColorData_fill_image_set(struct ReportList *UNUSED(reports),
+                                                PointerRNA *ptr,
+                                                PointerRNA value)
 {
   MaterialGPencilStyle *pcolor = (MaterialGPencilStyle *)ptr->data;
   ID *id = value.data;