fix(treesitter): fixup for health

runtime/lua/vim/treesitter/health.lua

@@ -2,28 +2,26 @@ local M = {}
 local ts = vim.treesitter
 local health = require('vim.health')
 
---- Lists the parsers currently installed
----
----@return string[] list of parser files
-function M.list_parsers()
- return vim.api.nvim_get_runtime_file('parser/*', true)
-end
-
 --- Performs a healthcheck for treesitter integration
 function M.check()
- local parsers = M.list_parsers()
+ local parsers = vim.api.nvim_get_runtime_file('parser/*', true)
 
  health.report_info(string.format('Nvim runtime ABI version: %d', ts.language_version))
 
  for _, parser in pairs(parsers) do
  local parsername = vim.fn.fnamemodify(parser, ':t:r')
- local is_loadable, ret = pcall(ts.language.add, parsername)
+ local is_loadable, err_or_nil = pcall(ts.language.add, parsername)
 
- if not is_loadable or not ret then
+ if not is_loadable then
  health.report_error(
- string.format('Parser "%s" failed to load (path: %s): %s', parsername, parser, ret or '?')
+ string.format(
+ 'Parser "%s" failed to load (path: %s): %s',
+ parsername,
+ parser,
+ err_or_nil or '?'
+ )
  )
- elseif ret then
+ else
  local lang = ts.language.inspect_language(parsername)
  health.report_ok(
  string.format('Parser: %-10s ABI: %d, path: %s', parsername, lang._abi_version, parser)

runtime/lua/vim/treesitter/language.lua

@@ -63,7 +63,7 @@ function M.add(lang, opts)
  M.register(lang, filetype or lang)
 
  if vim._ts_has_language(lang) then
- return true
+ return
  end
 
  if path == nil then