From 933c187148a5f39f7ffe8190adf8163f8c474764 Mon Sep 17 00:00:00 2001
From: Jonathan Apodaca <jrapodaca@gmail.com>
Date: Sun, 15 Jun 2025 18:21:34 -0600
Subject: [PATCH] (renderer) TreeBuilder: add ipairs/pairs utilities

---
 lua/u/renderer.lua | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/lua/u/renderer.lua b/lua/u/renderer.lua
index c50aec4..625dbf9 100644
--- a/lua/u/renderer.lua
+++ b/lua/u/renderer.lua
@@ -526,6 +526,26 @@ function TreeBuilder:nest(fn)
   return self
 end
 
+--- @param arr <T>[]
+--- @param f fun(tb: u.renderer.TreeBuilder, item: T, idx: number): any
+function TreeBuilder:ipairs(arr, f)
+  return self:nest(function(tb)
+    for idx, item in ipairs(arr) do
+      f(tb, item, idx)
+    end
+  end)
+end
+
+--- @param tab table
+--- @param f fun(tb: u.renderer.TreeBuilder, key: any, value: any): any
+function TreeBuilder:pairs(tab, f)
+  return self:nest(function(tb)
+    for k, v in pairs(tab) do
+      f(tb, k, v)
+    end
+  end)
+end
+
 --- @return u.renderer.Tree
 function TreeBuilder:tree() return self.nodes end
 -- }}}