From 621d4ea5c0710cf6207ad793b7fa8bee4ab2029d Mon Sep 17 00:00:00 2001
From: imxyy_soope_ <imxyy1soope1@gmail.com>
Date: Sun, 11 Jan 2026 14:20:18 +0800
Subject: [PATCH] fix: lazy select_with_default

---
 nix-js/src/ir/utils.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/nix-js/src/ir/utils.rs b/nix-js/src/ir/utils.rs
index 8682c61..67e1c76 100644
--- a/nix-js/src/ir/utils.rs
+++ b/nix-js/src/ir/utils.rs
@@ -121,14 +121,15 @@ pub fn downgrade_inherit(
             }
         };
         let expr = if let Some(expr) = from {
-            ctx.new_expr(
+            let select_expr = ctx.new_expr(
                 Select {
                     expr,
                     attrpath: vec![Attr::Str(ident)],
                     default: None,
                 }
                 .to_ir(),
-            )
+            );
+            ctx.new_expr(Ir::Thunk(select_expr))
         } else {
             ctx.lookup(ident)?
         };