src/java.desktop/share/native/libfontmanager/harfbuzz/hb-face-private.hh

@@ -48,16 +48,20 @@
 
   hb_reference_table_func_t  reference_table_func;
   void                      *user_data;
   hb_destroy_func_t          destroy;
 
-  unsigned int index;
-  mutable unsigned int upem;
-  mutable unsigned int num_glyphs;
+  unsigned int index;                   /* Face index in a collection, zero-based. */
+  mutable unsigned int upem;            /* Units-per-EM. */
+  mutable unsigned int num_glyphs;      /* Number of glyphs. */
 
-  struct hb_shaper_data_t shaper_data;
+  struct hb_shaper_data_t shaper_data;  /* Various shaper data. */
 
+  /* Various non-shaping data. */
+  /* ... */
+
+  /* Cache */
   struct plan_node_t {
     hb_shape_plan_t *shape_plan;
     plan_node_t *next;
   } *shape_plans;