meta: add c++ wrapper of core module

core-mm/object.cpp

@@ -0,0 +1,20 @@
+#include <blue/core/object.hpp>
+
+namespace blue::core
+{
+
+object::object(object &&other)
+{
+	ptr_ = other.ptr_;
+	other.ptr_ = nullptr;
+}
+
+object::~object()
+{
+	if (ptr_) {
+		b_object_unref(ptr_);
+		ptr_ = nullptr;
+	}
+}
+
+}