Optimization of objects number updating

core/sockets.py

@@ -438,6 +438,10 @@ def sv_set(self, data):
         """Set data, provide context in case the node can be evaluated several times in different context"""
         if self.is_output:
             data = self.postprocess_output(data)
+
+        # it's expensive to call sv_get method to update the number in other places
+        self.objects_number = len(data)
+
         sv_set_socket(self, data)
 
     def sv_forget(self):
@@ -548,21 +552,6 @@ def draw_label(text):
     def draw_color(self, context, node):
         return self.color
 
-    def update_objects_number(self):  # todo should be the method here?
-        """
-        Should be called each time after process method of the socket owner
-        It will update number of objects to show in socket labels
-        """
-        try:
-            self.objects_number = len(self.sv_get(deepcopy=False, default=[]))
-        except LookupError:
-            self.objects_number = 0
-        except Exception as e:
-            warning(f"Socket='{self.name}' of node='{self.node.name}' can't update number of objects on the label. "
-                    f"Cause is '{e}'")
-            self.objects_number = 0
-            raise e
-
 
 class SvObjectSocket(NodeSocket, SvSocketCommon):
     bl_idname = "SvObjectSocket"

node_tree.py

@@ -315,11 +315,6 @@ def update_ui(self, error=None, update_time=None):
         else:
             sv_bgl.callback_disable(update_pref + self.node_id)
 
-        # update object numbers
-        for s in chain(self.inputs, self.outputs):
-            if hasattr(s, 'update_objects_number'):
-                s.update_objects_number()
-
     def insert_link(self, link):
         """It will be triggered only if one socket is connected with another by user"""