chore: add type annotations to (almost) all functions

lua/nvim-tree/actions/node/file-popup.lua

@@ -2,6 +2,8 @@ local utils = require "nvim-tree.utils"
 
 local M = {}
 
+---@param node Node
+---@return table
 local function get_formatted_lines(node)
   local stats = node.fs_stat
   local fpath = " fullpath: " .. node.absolute_path
@@ -21,6 +23,7 @@ end
 
 local current_popup = nil
 
+---@param node Node
 local function setup_window(node)
   local lines = get_formatted_lines(node)
 
@@ -52,6 +55,7 @@ function M.close_popup()
   end
 end
 
+---@param node Node
 function M.toggle_file_info(node)
   if node.name == ".." then
     return

lua/nvim-tree/actions/node/open-file.lua

@@ -14,7 +14,7 @@ local function get_user_input_char()
   return vim.fn.nr2char(c)
 end
 
----Get all windows in the current tabpage that aren't NvimTree.
+--- Get all windows in the current tabpage that aren't NvimTree.
 ---@return table with valid win_ids
 local function usable_win_ids()
   local tabpage = vim.api.nvim_get_current_tabpage()
@@ -302,6 +302,8 @@ local function edit_in_current_buf(filename)
   vim.cmd("keepalt keepjumps edit " .. vim.fn.fnameescape(filename))
 end
 
+---@param mode string
+---@param filename string
 function M.fn(mode, filename)
   if type(mode) ~= "string" then
     mode = ""

lua/nvim-tree/actions/node/run-command.lua

@@ -6,6 +6,8 @@ local M = {}
 ---Retrieves the absolute path to the node.
 ---Safely handles the node representing the current directory
 ---(the topmost node in the nvim-tree window)
+---@param node Node
+---@return string
 local function get_node_path(node)
   if node.name == ".." then
     return utils.path_remove_trailing(core.get_cwd())
@@ -14,6 +16,7 @@ local function get_node_path(node)
   end
 end
 
+---@param node Node
 function M.run_file_command(node)
   local node_path = get_node_path(node)
   vim.api.nvim_input(": " .. node_path .. "<Home>")

lua/nvim-tree/actions/node/system-open.lua

@@ -3,6 +3,7 @@ local utils = require "nvim-tree.utils"
 
 local M = {}
 
+---@param node Node
 function M.fn(node)
   if #M.config.system_open.cmd == 0 then
     require("nvim-tree.utils").notify.warn "Cannot open file with system application. Unrecognized platform."