xo-interpreter2: + DVsmRcx. runtime context for vsm

include/xo/interpreter2/DVsmRcx.hpp

@@ -1,2 +1,36 @@
 /** @file DVsmRcx.hpp
-n*
+ *
+ *  @author Roland Conybeare, Feb 2026
+ **/
+
+#pragma once
+
+#include <xo/alloc2/Allocator.hpp>
+
+namespace xo {
+    namespace scm {
+        // see xo-interpreter/ VirtualSchematikaMachine.hpp
+        class VirtualSchematikaMachine; 
+
+        /** @brief Runtime context for schematika interpreter
+         *
+         *  Provides allocator
+         **/
+        class DVsmRcx {
+        public:
+            using AAllocator = xo::mm::AAllocator;
+
+        public:
+            DVsmRcx(VirtualSchematikaMachine * vsm);
+
+            obj<AAllocator> allocator() const noexcept;
+
+        private:
+            /** schematika interpreter **/
+            VirtualSchematikaMachine * vsm_ = nullptr;;
+        };
+    } /*namespace scm*/
+} /*namespace xo*/
+
+/* end DVsmRcx.hpp */
+

include/xo/interpreter2/VirtualSchematikaMachine.hpp

@@ -70,6 +70,9 @@ namespace xo {
         public:
             VirtualSchematikaMachine(const VsmConfig & config);
 
+            /** allocator for schematika data **/
+            obj<AAllocator> allocator() const noexcept;
+
             /** visit vsm-owned memory pools; call visitor(info) for each **/
             void visit_pools(const MemorySizeVisitor & visitor) const;