xo-gc: + CollectorTypeRegistry for streamlined init

xo-object2/src/object2/init_object2.cpp

@@ -0,0 +1,39 @@
+/** @file init_object2.cpp
+*
+ *  @author Roland Conybeare, Jan 2026
+ **/
+
+#include "init_object2.hpp"
+#include "object2_register_facets.hpp"
+#include "object2_register_types.hpp"
+#include <xo/gc/CollectorTypeRegistry.hpp>
+
+namespace xo {
+    using xo::scm::object2_register_facets;
+    using xo::scm::object2_register_types;
+    using xo::mm::CollectorTypeRegistry;
+
+    void
+    InitSubsys<S_object2_tag>::init()
+        {
+            object2_register_facets();
+
+            CollectorTypeRegistry::instance().register_types(&object2_register_types);
+        }
+
+    InitEvidence
+    InitSubsys<S_object2_tag>::require()
+        {
+            InitEvidence retval;
+
+            /* direct subsystem deps for xo-object2/ */
+            // retval ^= InitSubsys<S_somedep_tag>::require();
+
+            /* xo-expression2/'s own initialization code */
+            retval ^= Subsystem::provide<S_object2_tag>("object2", &init);
+
+            return retval;
+        }
+} /*namespace xo*/
+
+/* end init_object2.cpp */