From 67cc06e6513d389914127c5e0a175e67ad576cba Mon Sep 17 00:00:00 2001
From: Alexander Courtis <alex@courtis.org>
Date: Fri, 8 Nov 2024 12:00:44 +1100
Subject: [PATCH] Filter uses classic, tidy opts

---
 lua/nvim-tree/explorer/filters.lua     | 55 +++++++++++++-------------
 lua/nvim-tree/explorer/init.lua        |  2 +-
 lua/nvim-tree/explorer/live-filter.lua |  4 +-
 lua/nvim-tree/renderer/builder.lua     |  2 +-
 4 files changed, 32 insertions(+), 31 deletions(-)

diff --git a/lua/nvim-tree/explorer/filters.lua b/lua/nvim-tree/explorer/filters.lua
index 8de9f150..0fb44ec8 100644
--- a/lua/nvim-tree/explorer/filters.lua
+++ b/lua/nvim-tree/explorer/filters.lua
@@ -1,47 +1,48 @@
 local utils = require("nvim-tree.utils")
 local FILTER_REASON = require("nvim-tree.enum").FILTER_REASON
 
----@class Filters to handle all opts.filters and related API
+local Class = require("nvim-tree.classic")
+
+---@class (exact) Filters: Class
 ---@field config table hydrated user opts.filters
 ---@field private explorer Explorer
 ---@field private exclude_list string[] filters.exclude
----@field private ignore_list string[] filters.custom string table
+---@field private ignore_list table<string, boolean> filters.custom string table
 ---@field private custom_function (fun(absolute_path: string): boolean)|nil filters.custom function
-local Filters = {}
+local Filters = Class:extend()
 
----@param opts table user options
----@param explorer Explorer
----@return Filters
-function Filters:new(opts, explorer)
-  local o = {
-    explorer = explorer,
-    ignore_list = {},
-    exclude_list = opts.filters.exclude,
-    custom_function = nil,
-    config = {
-      enable = opts.filters.enable,
-      filter_custom = true,
-      filter_dotfiles = opts.filters.dotfiles,
-      filter_git_ignored = opts.filters.git_ignored,
-      filter_git_clean = opts.filters.git_clean,
-      filter_no_buffer = opts.filters.no_buffer,
-      filter_no_bookmark = opts.filters.no_bookmark,
-    },
+---@class Filters
+---@overload fun(args: FiltersArgs): Filters
+
+---@class (exact) FiltersArgs
+---@field explorer Explorer
+
+---@param args FiltersArgs
+function Filters:new(args)
+  self.explorer = args.explorer
+  self.ignore_list = {}
+  self.exclude_list = self.explorer.opts.filters.exclude
+  self.custom_function = nil
+  self.config = {
+    enable = self.explorer.opts.filters.enable,
+    filter_custom = true,
+    filter_dotfiles = self.explorer.opts.filters.dotfiles,
+    filter_git_ignored = self.explorer.opts.filters.git_ignored,
+    filter_git_clean = self.explorer.opts.filters.git_clean,
+    filter_no_buffer = self.explorer.opts.filters.no_buffer,
+    filter_no_bookmark = self.explorer.opts.filters.no_bookmark,
   }
 
-  local custom_filter = opts.filters.custom
+  local custom_filter = self.explorer.opts.filters.custom
   if type(custom_filter) == "function" then
-    o.custom_function = custom_filter
+    self.custom_function = custom_filter
   else
     if custom_filter and #custom_filter > 0 then
       for _, filter_name in pairs(custom_filter) do
-        o.ignore_list[filter_name] = true
+        self.ignore_list[filter_name] = true
       end
     end
   end
-  setmetatable(o, self)
-  self.__index = self
-  return o
 end
 
 ---@param path string
diff --git a/lua/nvim-tree/explorer/init.lua b/lua/nvim-tree/explorer/init.lua
index 36c3391e..23434fab 100644
--- a/lua/nvim-tree/explorer/init.lua
+++ b/lua/nvim-tree/explorer/init.lua
@@ -59,7 +59,7 @@ function Explorer:new(args)
 
   self.sorters = Sorter(config)
   self.renderer = Renderer({ explorer = self })
-  self.filters = Filters:new(config, self)
+  self.filters = Filters({ explorer = self })
   self.live_filter = LiveFilter({ explorer = self })
   self.marks = Marks:new(config, self)
   self.clipboard = Clipboard:new(config, self)
diff --git a/lua/nvim-tree/explorer/live-filter.lua b/lua/nvim-tree/explorer/live-filter.lua
index 30170f40..c59b0c0b 100644
--- a/lua/nvim-tree/explorer/live-filter.lua
+++ b/lua/nvim-tree/explorer/live-filter.lua
@@ -21,8 +21,8 @@ local LiveFilter = Class:extend()
 ---@param args LiveFilterArgs
 function LiveFilter:new(args)
   self.explorer = args.explorer
-  self.prefix = args.explorer.opts.live_filter.prefix
-  self.always_show_folders = args.explorer.opts.live_filter.always_show_folders
+  self.prefix = self.explorer.opts.live_filter.prefix
+  self.always_show_folders = self.explorer.opts.live_filter.always_show_folders
   self.filter = nil
 end
 
diff --git a/lua/nvim-tree/renderer/builder.lua b/lua/nvim-tree/renderer/builder.lua
index 2e2f1594..29b3d337 100644
--- a/lua/nvim-tree/renderer/builder.lua
+++ b/lua/nvim-tree/renderer/builder.lua
@@ -71,7 +71,7 @@ function Builder:new(args)
     DecoratorOpened({ explorer = args.explorer }),
     DecoratorGit({ explorer = args.explorer })
   }
-  self.hidden_display = Builder:setup_hidden_display_function(args.explorer.opts)
+  self.hidden_display = Builder:setup_hidden_display_function(self.explorer.opts)
 end
 
 ---Insert ranged highlight groups into self.highlights