typechecked optargs constructors for nodes

lua/nvim-tree/node/factory.lua

@@ -7,38 +7,38 @@ local Watcher = require("nvim-tree.watcher")
 local M = {}
 
 ---Factory function to create the appropriate Node
----@param explorer Explorer
----@param parent DirectoryNode
----@param absolute_path string
----@param stat uv.fs_stat.result? -- on nil stat return nil Node
----@param name string
+---nil on invalid stat or invalid link target stat
+---@param args NodeArgs
 ---@return Node?
-function M.create_node(explorer, parent, absolute_path, stat, name)
-  if not stat then
+function M.create(args)
+  if not args.fs_stat then
     return nil
   end
 
-  if stat.type == "directory" then
+  if args.fs_stat.type == "directory" then
     -- directory must be readable and enumerable
-    if vim.loop.fs_access(absolute_path, "R") and Watcher.is_fs_event_capable(absolute_path) then
-      return DirectoryNode(explorer, parent, absolute_path, name, stat)
+    if vim.loop.fs_access(args.absolute_path, "R") and Watcher.is_fs_event_capable(args.absolute_path) then
+      return DirectoryNode(args)
     end
-  elseif stat.type == "file" then
-    -- any file
-    return FileNode(explorer, parent, absolute_path, name, stat)
-  elseif stat.type == "link" then
+  elseif args.fs_stat.type == "file" then
+    return FileNode(args)
+  elseif args.fs_stat.type == "link" then
     -- link target path and stat must resolve
-    local link_to = vim.loop.fs_realpath(absolute_path)
+    local link_to = vim.loop.fs_realpath(args.absolute_path)
     local link_to_stat = link_to and vim.loop.fs_stat(link_to)
     if not link_to or not link_to_stat then
       return
     end
 
+    ---@cast args LinkNodeArgs
+    args.link_to        = link_to
+    args.fs_stat_target = link_to_stat
+
     -- choose directory or file
     if link_to_stat.type == "directory" then
-      return DirectoryLinkNode(explorer, parent, absolute_path, link_to, name, stat, link_to_stat)
+      return DirectoryLinkNode(args)
     else
-      return FileLinkNode(explorer, parent, absolute_path, link_to, name, stat, link_to_stat)
+      return FileLinkNode(args)
     end
   end