extmark: refiy "Decoration" abstraction

one very important thought

1 files changed, 11 insertions, 4 deletions

diff --git a/src/nvim/extmark_defs.h b/src/nvim/extmark_defs.h
index c927048981..899fbdf38a 100644
--- a/src/nvim/extmark_defs.h
+++ b/src/nvim/extmark_defs.h
@@ -14,12 +14,19 @@ typedef kvec_t(VirtTextChunk) VirtText;
 
 typedef struct
 {
-  uint64_t ns_id;
-  uint64_t mark_id;
   int hl_id;  // highlight group
-  // TODO(bfredl): virt_text is pretty larger than the rest,
-  // pointer indirection?
   VirtText virt_text;
+  // TODO(bfredl): style, signs, etc
+} Decoration;
+
+typedef struct
+{
+  uint64_t ns_id;
+  uint64_t mark_id;
+  // TODO(bfredl): a lot of small allocations. Should probably use
+  // kvec_t(Decoration) as an arena. Alternatively, store ns_id/mark_id
+  // _inline_ in MarkTree and use the map only for decorations.
+  Decoration *decor;
 } ExtmarkItem;
 
 typedef struct undo_object ExtmarkUndoObject;