From 61c034223343231d421773358765ec4a400f1713 Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Wed, 11 Mar 2026 07:49:14 -0500
Subject: [PATCH] xo-reader2 stack: expand symbol table to store typedefs

+ typedef utest
+ misc qol policy choices
---
 include/xo/facet/FacetRegistry.hpp | 4 ++--
 include/xo/facet/obj.hpp           | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/xo/facet/FacetRegistry.hpp b/include/xo/facet/FacetRegistry.hpp
index eda22f5..69bfbee 100644
--- a/include/xo/facet/FacetRegistry.hpp
+++ b/include/xo/facet/FacetRegistry.hpp
@@ -249,7 +249,7 @@ namespace xo {
         template <typename AFacet, typename DRepr>
         template <typename AOther>
         obj<AOther,DRepr>
-        obj<AFacet,DRepr>::to_facet()
+        obj<AFacet,DRepr>::to_facet() const
         {
             if (this->data()) {
                 if constexpr (std::is_same_v<DRepr, DVariantPlaceholder>) {
@@ -270,7 +270,7 @@ namespace xo {
         template <typename AFacet, typename DRepr>
         template <typename AOther>
         obj<AOther,DRepr>
-        obj<AFacet,DRepr>::try_to_facet() noexcept
+        obj<AFacet,DRepr>::try_to_facet() const noexcept
         {
             if (this->data()) {
                 if constexpr (std::is_same_v<DRepr, DVariantPlaceholder>) {
diff --git a/include/xo/facet/obj.hpp b/include/xo/facet/obj.hpp
index d16c776..d583431 100644
--- a/include/xo/facet/obj.hpp
+++ b/include/xo/facet/obj.hpp
@@ -135,13 +135,13 @@ namespace xo {
              *  Definition in FacetRegistry.hpp, to avoid #include dependency
              **/
             template <typename AOther>
-            obj<AOther,DRepr> to_facet();
+            obj<AOther,DRepr> to_facet() const;
 
             /** like to_facet<AOther>(),
              *  but on failure return empty obj instead of throwing exception
              **/
             template <typename AOther>
-            obj<AOther,DRepr> try_to_facet() noexcept;
+            obj<AOther,DRepr> try_to_facet() const noexcept;
 
             /** enabled when RRouter<AFacet> provides _preincrement.
              *  Note we don't need this trick for comparison operators,