fix: do not use vim.iter (#6469)

lua/nvim-treesitter/config.lua

@@ -106,12 +106,17 @@ function M.norm_languages(languages, skip)
   end
 
   -- keep local to avoid leaking parsers module
+  --- @param list string[]
   local function expand_tiers(list)
     for i, tier in ipairs(parsers.tiers) do
       if vim.list_contains(list, tier) then
-        list = vim.iter.filter(function(l)
-          return l ~= tier
-        end, list) --[[@as string[] ]]
+        list = vim.tbl_filter(
+          --- @param l string
+          function(l)
+            return l ~= tier
+          end,
+          list
+        )
         vim.list_extend(list, parsers.get_available(i))
       end
     end
@@ -123,29 +128,45 @@ function M.norm_languages(languages, skip)
 
   if skip and skip.ignored then
     local ignored = expand_tiers(config.ignore_install)
-    languages = vim.iter.filter(function(v)
-      return not vim.list_contains(ignored, v)
-    end, languages) --[[@as string[] ]]
+    languages = vim.tbl_filter(
+      --- @param v string
+      function(v)
+        return not vim.list_contains(ignored, v)
+      end,
+      languages
+    )
   end
 
   if skip and skip.installed then
     local installed = M.installed_parsers()
-    languages = vim.iter.filter(function(v)
-      return not vim.list_contains(installed, v)
-    end, languages) --[[@as string[] ]]
+    languages = vim.tbl_filter(
+      --- @param v string
+      function(v)
+        return not vim.list_contains(installed, v)
+      end,
+      languages
+    )
   end
 
   if skip and skip.missing then
     local installed = M.installed_parsers()
-    languages = vim.iter.filter(function(v)
-      return vim.list_contains(installed, v)
-    end, languages) --[[@as string[] ]]
+    languages = vim.tbl_filter(
+      --- @param v string
+      function(v)
+        return vim.list_contains(installed, v)
+      end,
+      languages
+    )
   end
 
-  languages = vim.iter.filter(function(v)
-    -- TODO(lewis6991): warn of any unknown parsers?
-    return parsers.configs[v] ~= nil
-  end, languages) --[[@as string[] ]]
+  languages = vim.tbl_filter(
+    --- @param v string
+    function(v)
+      -- TODO(lewis6991): warn of any unknown parsers?
+      return parsers.configs[v] ~= nil
+    end,
+    languages
+  )
 
   if not (skip and skip.dependencies) then
     for _, lang in pairs(languages) do

lua/nvim-treesitter/install.lua

@@ -152,7 +152,7 @@ end
 local function cc_err()
   log.error(
     'No C compiler found! "'
-      .. table.concat(vim.iter.filter(istring, M.compilers), '", "')
+      .. table.concat(vim.tbl_filter(istring, M.compilers), '", "')
       .. '" are not executable.'
   )
 end
@@ -230,7 +230,7 @@ local function do_download_tar(logger, repo, project_name, cache_dir, revision,
     cwd = cache_dir,
   })
   if r.code > 0 then
-    return logger:error('Error during download, please verify your internet connection: %s', r.stderr)
+    return logger:error('Error during download: %s', r.stderr)
   end
 
   logger:debug('Creating temporary directory: ' .. temp_dir)
@@ -328,7 +328,7 @@ end
 ---@param executables string[]
 ---@return string?
 function M.select_executable(executables)
-  return vim.iter.filter(executable, executables)[1]
+  return vim.tbl_filter(executable, executables)[1]
 end
 
 -- Returns the compiler arguments based on the compiler and OS
@@ -520,8 +520,7 @@ local INSTALL_TIMEOUT = 60000
 ---@return InstallStatus status
 local function install_lang(lang, cache_dir, install_dir, force, generate_from_grammar)
   if not force and vim.list_contains(config.installed_parsers(), lang) then
-    local yesno =
-      fn.input(lang .. ' parser already available: would you like to reinstall ? y/n: ')
+    local yesno = fn.input(lang .. ' parser already available: would you like to reinstall ? y/n: ')
     print('\n ')
     if yesno:sub(1, 1) ~= 'y' then
       install_status[lang] = 'installed'
@@ -613,7 +612,7 @@ M.update = a.sync(function(languages, _options, _callback)
     languages = 'all'
   end
   languages = config.norm_languages(languages, { ignored = true, missing = true })
-  languages = vim.iter.filter(needs_update, languages) --- @type string[]
+  languages = vim.tbl_filter(needs_update, languages) --- @type string[]
 
   if #languages > 0 then
     install(languages, { force = true })

lua/nvim-treesitter/parsers.lua

@@ -3010,15 +3010,23 @@ function M.get_available(tier)
   local parsers = vim.tbl_keys(M.configs)
   table.sort(parsers)
   if tier then
-    parsers = vim.iter.filter(function(p)
-      return M.configs[p].tier == tier
-    end, parsers) --[[@as string[] ]]
+    parsers = vim.tbl_filter(
+      --- @param p string
+      function(p)
+        return M.configs[p].tier == tier
+      end,
+      parsers
+    )
   end
   if vim.fn.executable('tree-sitter') == 0 or vim.fn.executable('node') == 0 then
-    parsers = vim.iter.filter(function(p)
-      return M.configs[p].install_info
-        and not M.configs[p].install_info.requires_generate_from_grammar
-    end, parsers) --[[@as string[] ]]
+    parsers = vim.tbl_filter(
+      --- @param p string
+      function(p)
+        return M.configs[p].install_info ~= nil
+          and not M.configs[p].install_info.requires_generate_from_grammar
+      end,
+      parsers
+    )
   end
   return parsers
 end

plugin/nvim-treesitter.lua

@@ -6,15 +6,23 @@ vim.g.loaded_nvim_treesitter = true
 local api = vim.api
 
 local function complete_available_parsers(arglead)
-  return vim.iter.filter(function(v)
-    return v:find(arglead)
-  end, require('nvim-treesitter.parsers').get_available())
+  return vim.tbl_filter(
+    --- @param v string
+    function(v)
+      return v:find(arglead) ~= nil
+    end,
+    require('nvim-treesitter.parsers').get_available()
+  )
 end
 
 local function complete_installed_parsers(arglead)
-  return vim.iter.filter(function(v)
-    return v:find(arglead)
-  end, require('nvim-treesitter.config').installed_parsers())
+  return vim.tbl_filter(
+    --- @param v string
+    function(v)
+      return v:find(arglead) ~= nil
+    end,
+    require('nvim-treesitter.config').installed_parsers()
+  )
 end
 
 -- create user commands