From 866b6a55e2fecdf9308e62b5980f0421b347c90c Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Fri, 1 May 2026 20:38:38 -0400
Subject: [PATCH] xo-object2: streamline write barriers for DList,DArray muts

---
 src/reader2/DExpectQListSsm.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/reader2/DExpectQListSsm.cpp b/src/reader2/DExpectQListSsm.cpp
index 184bcc41..8ea243ca 100644
--- a/src/reader2/DExpectQListSsm.cpp
+++ b/src/reader2/DExpectQListSsm.cpp
@@ -184,7 +184,7 @@ namespace xo {
                     if (this->end_) {
                         /* DExpectQListSsm owns {start_, end_} -> preserves acyclic property */
 
-                        end_->_assign_rest(new_last);
+                        end_->_assign_rest(p_psm->expr_alloc(), new_last);
 
                         this->end_ = new_last;
                     } else {