562     fn add_clip_id_mapping(&mut self, numeric_id: u64, real_id: ClipId) {  in add_clip_id_mapping()
563         assert_ne!(numeric_id, 0, "id=0 is reserved for the root clip");  in add_clip_id_mapping()
564         self.user_clip_id_map.insert(numeric_id, real_id);  in add_clip_id_mapping()
567     fn add_spatial_id_mapping(&mut self, numeric_id: u64, real_id: SpatialId) {  in add_spatial_id_mapping()
568         assert_ne!(numeric_id, 0, "id=0 is reserved for the root reference frame");  in add_spatial_id_mapping()
569         assert_ne!(numeric_id, 1, "id=1 is reserved for the root scroll node");  in add_spatial_id_mapping()
570         self.user_spatial_id_map.insert(numeric_id, real_id);  in add_spatial_id_mapping()
1817         let numeric_id = yaml["id"].as_i64().map(|id| id as u64);  in handle_scroll_frame()  localVariable
1834         if let Some(numeric_id) = numeric_id {  in handle_scroll_frame()
1835             self.add_spatial_id_mapping(numeric_id, space_and_clip.spatial_id);  in handle_scroll_frame()
1836             self.add_clip_id_mapping(numeric_id, space_and_clip.clip_id);  in handle_scroll_frame()
1855         let numeric_id = yaml["id"].as_i64().map(|id| id as u64);  in handle_sticky_frame()  localVariable
1871         if let Some(numeric_id) = numeric_id {  in handle_sticky_frame()
1872             self.add_spatial_id_mapping(numeric_id, real_id);  in handle_sticky_frame()
1955         let numeric_id = yaml["id"].as_i64().expect("clip chains must have an id");  in handle_clip_chain()  localVariable
1971         self.add_clip_id_mapping(numeric_id as u64, ClipId::ClipChain(real_id));  in handle_clip_chain()
1975         let numeric_id = yaml["id"].as_i64();  in handle_clip()  localVariable
2002         if let Some(numeric_id) = numeric_id {  in handle_clip()
2003             self.add_clip_id_mapping(numeric_id as u64, space_and_clip.clip_id);  in handle_clip()
2004             self.add_spatial_id_mapping(numeric_id as u64, space_and_clip.spatial_id);  in handle_clip()
2073         let numeric_id = yaml["id"].as_i64();  in push_reference_frame()  localVariable
2074         if let Some(numeric_id) = numeric_id {  in push_reference_frame()
2075             self.add_spatial_id_mapping(numeric_id as u64, reference_frame_id);  in push_reference_frame()