--- /dev/null
+#ifndef __NEXT_EXPR_DEREF_NODE_H__
+#define __NEXT_EXPR_DEREF_NODE_H__
+
+#include "nest/DomainID.h"
+
+#include "nest/expr/Subscript.h"
+
+namespace nest
+{
+namespace expr
+{
+
+class DerefNode final : public Node
+{
+public:
+ template <typename... Args>
+ DerefNode(const DomainID &id, Args &&... indicies)
+ : _id{id}, _sub{std::forward<Args>(indicies)...}
+ {
+ // DO NOTHING
+ }
+
+public:
+ const DerefNode *asDeref(void) const override { return this; }
+
+public:
+ const DomainID &id(void) const { return _id; }
+ const Subscript &sub(void) const { return _sub; }
+
+private:
+ DomainID const _id;
+ Subscript const _sub;
+};
+
+} // namespace expr
+} // namespace nest
+
+#endif // __NEXT_EXPR_DEREF_NODE_H__
--- /dev/null
+#include "nest/expr/DerefNode.h"
+
+#include <memory>
+
+#include <gtest/gtest.h>
+
+namespace
+{
+struct DummyNode final : public nest::expr::Node
+{
+};
+}
+
+TEST(DEREF_NODE, cast)
+{
+ const nest::DomainID dom_id{0};
+
+ auto derived = std::make_shared<nest::expr::DerefNode>(dom_id, std::make_shared<DummyNode>());
+ std::shared_ptr<nest::expr::Node> base = derived;
+
+ ASSERT_NE(derived.get(), nullptr);
+ ASSERT_EQ(base->asDeref(), derived.get());
+}