fix(treesitter): make vim.treesitter.stop() detach parser

runtime/lua/vim/treesitter.lua

@@ -41,10 +41,16 @@ function M._create_parser(bufnr, lang, opts)
   local self = LanguageTree.new(bufnr, lang, opts)
 
   local function bytes_cb(_, ...)
+    if self:_is_destroyed() then
+      return true
+    end
     self:_on_bytes(...)
   end
 
   local function detach_cb(_, ...)
+    if self:_is_destroyed() then
+      return true
+    end
     if parsers[bufnr] == self then
       parsers[bufnr] = nil
     end
@@ -52,6 +58,9 @@ function M._create_parser(bufnr, lang, opts)
   end
 
   local function reload_cb(_)
+    if self:_is_destroyed() then
+      return true
+    end
     self:_on_reload()
   end
 
@@ -426,6 +435,11 @@ function M.stop(bufnr)
   if M.highlighter.active[bufnr] then
     M.highlighter.active[bufnr]:destroy()
   end
+
+  if parsers[bufnr] then
+    parsers[bufnr]:destroy()
+    parsers[bufnr] = nil
+  end
 end
 
 --- Open a window that displays a textual representation of the nodes in the language tree.

runtime/lua/vim/treesitter/languagetree.lua

@@ -86,6 +86,7 @@ local TSCallbackNames = {
 ---@field private _trees table<integer, TSTree> Reference to parsed tree (one for each language).
 ---Each key is the index of region, which is synced with _regions and _valid.
 ---@field private _valid boolean|table<integer,boolean> If the parsed tree is valid
+---@field private _destroyed boolean If the LanguageTree has been destroyed
 ---@field private _logger? fun(logtype: string, msg: string)
 ---@field private _logfile? file*
 local LanguageTree = {}
@@ -534,6 +535,12 @@ function LanguageTree:destroy()
   for _, child in pairs(self._children) do
     child:destroy()
   end
+  self._destroyed = true
+end
+
+---@nodoc
+function LanguageTree:_is_destroyed()
+  return self._destroyed
 end
 
 ---@param region Range6[]