Refactor context module, return false (not {}) in context.in_treesitter_capture (#777)

lua/cmp/config/context.lua

@@ -11,6 +11,7 @@ context.in_syntax_group = function(group)
       return true
     end
   end
+  return false
 end
 
 ---Check if cursor is in treesitter capture
@@ -20,6 +21,7 @@ context.in_treesitter_capture = function(capture)
   local highlighter = require('vim.treesitter.highlighter')
   local ts_utils = require('nvim-treesitter.ts_utils')
   local buf = vim.api.nvim_get_current_buf()
+
   local row, col = unpack(vim.api.nvim_win_get_cursor(0))
   row = row - 1
   if vim.api.nvim_get_mode().mode == 'i' then
@@ -28,7 +30,7 @@ context.in_treesitter_capture = function(capture)
 
   local self = highlighter.active[buf]
   if not self then
-    return {}
+    return false
   end
 
   local node_types = {}
@@ -40,30 +42,24 @@ context.in_treesitter_capture = function(capture)
 
     local root = tstree:root()
     local root_start_row, _, root_end_row, _ = root:range()
-
     if root_start_row > row or root_end_row < row then
       return
     end
 
     local query = self:get_query(tree:lang())
-
     if not query:query() then
       return
     end
 
     local iter = query:query():iter_captures(root, self.bufnr, row, row + 1)
-
     for _, node, _ in iter do
       if ts_utils.is_in_node_range(node, row, col) then
         table.insert(node_types, node:type())
       end
     end
   end, true)
-  if vim.tbl_contains(node_types, capture) then
-    return true
-  else
-    return false
-  end
+
+  return vim.tbl_contains(node_types, capture)
 end
 
 return context