From ae0bbb91d7c4630a547aa830a6ed26c15b63381f Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Fri, 1 May 2026 19:54:26 -0400
Subject: [PATCH] refactor focusing on xo-alloc2/ xo-gc/ write-barrier

ability to inform allocator of gco->gco mutation, via AAllocator i/face.
---
 include/xo/facet/OObject.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/xo/facet/OObject.hpp b/include/xo/facet/OObject.hpp
index 39682863..458bdd15 100644
--- a/include/xo/facet/OObject.hpp
+++ b/include/xo/facet/OObject.hpp
@@ -168,6 +168,7 @@ namespace xo {
 
             DataPtr data() const { return data_; }
             Opaque opaque_data() const { return data_; }
+            Opaque * opaque_data_addr() { return (Opaque *)&data_; }
 
             void reset() { data_ = nullptr; }
             void reset_opaque(Opaque data) { data_ = (DataPtr)data; }