feat(ui): allow to set the highlight namespace per window

- reimplement 'winhl' in terms of highlight namespaces
- check for EOF in screen tests (to indicate a likely crash)

1 files changed, 6 insertions, 8 deletions

diff --git a/src/nvim/buffer_defs.h b/src/nvim/buffer_defs.h
index f5dd86cb98..15b964f5ed 100644
--- a/src/nvim/buffer_defs.h
+++ b/src/nvim/buffer_defs.h
@@ -1143,11 +1143,14 @@ struct window_S {
 
   synblock_T *w_s;                 ///< for :ownsyntax
 
+  int w_ns_hl;
+  int w_ns_hl_winhl;
+  int w_ns_hl_active;
+  int *w_ns_hl_attr;
+
   int w_hl_id_normal;               ///< 'winhighlight' normal id
   int w_hl_attr_normal;             ///< 'winhighlight' normal final attrs
-
-  int w_hl_ids[HLF_COUNT];          ///< 'winhighlight' id
-  int w_hl_attrs[HLF_COUNT];        ///< 'winhighlight' final attrs
+  int w_hl_attr_normalnc;           ///< 'winhighlight' NormalNC final attrs
 
   int w_hl_needs_update;            ///< attrs need to be recalculated
 
@@ -1469,11 +1472,6 @@ struct window_S {
   size_t w_winbar_click_defs_size;
 };
 
-static inline int win_hl_attr(win_T *wp, int hlf)
-{
-  return wp->w_hl_attrs[hlf];
-}
-
 /// Macros defined in Vim, but not in Neovim
 #define CHANGEDTICK(buf) \
   (=== Include buffer.h & use buf_(get|set|inc) _changedtick ===)