source/blender/blenkernel/BKE_geometry_nodes_reference_set.hh

   1 /* SPDX-FileCopyrightText: 2024 Blender Authors
   2  *
   3  * SPDX-License-Identifier: GPL-2.0-or-later */
   4
   5 #pragma once
   6
   7 #include <memory>
   8 #include <string>
   9
  10 #include "BLI_set.hh"
  11
  12 namespace blender::bke {
  13
  14 /**
  15  * A set of anonymous attribute names that is passed around in geometry nodes.
  16  */
  17 class GeometryNodesReferenceSet {
  18  public:
  19   /**
  20    * This uses `std::shared_ptr` because attributes sets are passed around by value during geometry
  21    * nodes evaluation, and this makes it very small if there is no name. Also it makes copying very
  22    * cheap.
  23    */
  24   std::shared_ptr<Set<std::string>> names;
  25 };
  26
  27 }  // namespace blender::bke