Merge pull request #144 from specklesystems/jrm/ifc/fix

fixed IFC commits with empty lists

bpy_speckle/convert/to_native.py

@@ -48,9 +48,9 @@ def convert_to_native(speckle_object: Base, name: Optional[str] = None) -> Optio
     )
     # convert unsupported types with display values
     if speckle_type not in CAN_CONVERT_TO_NATIVE:
-        elements = getattr(speckle_object, "elements", []) or []
+        elements = getattr(speckle_object, "elements", getattr(speckle_object, "@elements", []))
         display = getattr(
-            speckle_object, "displayValue", getattr(speckle_object, "displayMesh", None)
+            speckle_object, "displayValue", getattr(speckle_object, "@displayValue", None)
         )
         if not elements and not display:
             _report(f"Could not convert unsupported Speckle object: {speckle_object}")

bpy_speckle/operators/streams.py

@@ -52,6 +52,8 @@ def get_objects_collections(base: Base) -> Dict[str, list]:
 def get_objects_nested_lists(items: list, parent_col: Optional[bpy.types.Collection] = None) -> List:
     """For handling the weird nested lists that come from Grasshopper"""
     objects = []
+    if not items:
+        return objects
 
     if isinstance(items[0], list):
         items = list(chain.from_iterable(items))