From 261b8489a08855971e056b3a220db7d8e4cf6883 Mon Sep 17 00:00:00 2001
From: Eman Resu <78693624+quatquatt@users.noreply.github.com>
Date: Thu, 21 May 2026 16:40:17 -0400
Subject: [PATCH] lib.lists.foldl': avoid builtins lookups

---
 lib/lists.nix | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/lists.nix b/lib/lists.nix
index abd9aceed0e3..7fb9d21a1f2e 100644
--- a/lib/lists.nix
+++ b/lib/lists.nix
@@ -6,8 +6,9 @@ let
   inherit (lib.strings) toInt;
   inherit (lib.trivial)
     compare
-    min
     id
+    min
+    seq
     warn
     ;
   inherit (lib.attrsets) mapAttrs attrNames attrValues;
@@ -276,11 +277,14 @@ rec {
     :::
   */
   foldl' =
+    let
+      inherit (builtins) foldl';
+    in
     op: acc:
     # The builtin `foldl'` is a bit lazier than one might expect.
     # See https://github.com/NixOS/nix/pull/7158.
     # In particular, the initial accumulator value is not forced before the first iteration starts.
-    builtins.seq acc (builtins.foldl' op acc);
+    seq acc (foldl' op acc);
 
   /**
     Map with index starting from 0