Comment not to remove `data` structs in some Nodes

3 files changed, 3 insertions, 0 deletions

diff --git a/scene/3d/node_3d.h b/scene/3d/node_3d.h
index 90c7bc89ef..04f73a4cbd 100644
--- a/scene/3d/node_3d.h
+++ b/scene/3d/node_3d.h
@@ -96,6 +96,7 @@ private:
 
 	mutable SelfList<Node> xform_change;
 
+	// This Data struct is to avoid namespace pollution in derived classes.
 	struct Data {
 		mutable Transform3D global_transform;
 		mutable Transform3D local_transform;
diff --git a/scene/gui/control.h b/scene/gui/control.h
index ee6443c81c..2cc628ca5e 100644
--- a/scene/gui/control.h
+++ b/scene/gui/control.h
@@ -159,6 +159,7 @@ private:
 		}
 	};
 
+	// This Data struct is to avoid namespace pollution in derived classes.
 	struct Data {
 		// Global relations.
 
diff --git a/scene/main/node.h b/scene/main/node.h
index 4e6530cccd..8c82c41e46 100644
--- a/scene/main/node.h
+++ b/scene/main/node.h
@@ -91,6 +91,7 @@ private:
 		SceneTree::Group *group = nullptr;
 	};
 
+	// This Data struct is to avoid namespace pollution in derived classes.
 	struct Data {
 		String scene_file_path;
 		Ref<SceneState> instance_state;