fix: regression and error handling

Author: kapral18

lua/dim.lua

@@ -2,7 +2,11 @@ local dim = {}
 local util = {}
 
 local ts = vim.treesitter
-local _, ts_utils = pcall(require, "nvim-treesitter.ts_utils")
+local ok, ts_utils = pcall(require, "nvim-treesitter.ts_utils")
+
+local ts_highlighter = ts.highlighter
+---@type (fun(node: TSNode, line: integer, col: integer): boolean) | false
+local ts_is_in_node_range = ts.is_in_node_range or (ok and ts_utils.is_in_node_range)
 
 ------------------------
 --## UTIL FUNCTIONS ##--
@@ -85,7 +89,7 @@ function util.get_treesitter_hl(row, col)
     end, matches)
   end
 
-  local self = ts.highlighter.active[buf]
+  local self = ts_highlighter.active[buf]
   if not self then
     return {}
   end
@@ -115,7 +119,7 @@ function util.get_treesitter_hl(row, col)
     for capture, node, _ in iter do
       local hl = query.hl_cache[capture]
 
-      if hl and ts_utils and ts_utils.node_in_range(node, row, col) or ts.is_in_node_range(node, row, col) then
+      if hl and ts_is_in_node_range and ts_is_in_node_range(node, row, col) then
         local c = query._query.captures[capture] -- name of the capture in the query
         if c ~= nil then
           local general_hl = query:_get_hl_from_capture(capture)