From 41e1f060799f2f9b06e3e4440adf5f2ce6c9a341 Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Tue, 24 Mar 2026 17:43:45 -0400
Subject: [PATCH] xo-reader2: + SyntaxStateMachine.forward_children method

Support gc traversal with goal of making ParserStateMachine a gc root
---
 src/type/DTypeVarRef.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/type/DTypeVarRef.cpp b/src/type/DTypeVarRef.cpp
index 88223ee..8da0ec0 100644
--- a/src/type/DTypeVarRef.cpp
+++ b/src/type/DTypeVarRef.cpp
@@ -6,6 +6,7 @@
 #include "Metatype.hpp"
 #include "TypeVarRef.hpp"
 #include <xo/reflect/Reflect.hpp>
+#include <xo/alloc2/Collector.hpp>
 #include <xo/facet/FacetRegistry.hpp>
 
 namespace xo {
@@ -89,10 +90,12 @@ namespace xo {
         std::size_t
         DTypeVarRef::forward_children(obj<ACollector> gc) noexcept
         {
-            {
-                auto e = FacetRegistry::instance().variant<AGCObject,AType>(type_);
-                gc.forward_inplace(e.iface(), (void **)&type_.data_);
-            }
+            gc.forward_pivot_inplace(&type_);
+
+            //{
+            //    auto e = FacetRegistry::instance().variant<AGCObject,AType>(type_);
+            //    gc.forward_inplace(e.iface(), (void **)&type_.data_);
+            //}
 
             return this->shallow_size();
         }