1 files changed, 62 insertions, 0 deletions
diff --git a/compiler/nest/core/include/nest/stmt/Node.h b/compiler/nest/core/include/nest/stmt/Node.h
new file mode 100644
index 000000000..593eb68a1
--- /dev/null
+++ b/compiler/nest/core/include/nest/stmt/Node.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __NEST_STMT_NODE_H__
+#define __NEST_STMT_NODE_H__
+
+#include "nest/stmt/Macro.h"
+#include "nest/stmt/Forward.h"
+#include "nest/stmt/Visitor.h"
+
+#include <stdexcept>
+
+namespace nest
+{
+namespace stmt
+{
+
+struct Node
+{
+  virtual ~Node() = default;
+
+#define STMT(Tag)                                                                       \
+  virtual const NEST_STMT_CLASS_NAME(Tag) * NEST_STMT_CAST_METHOD_NAME(Tag)(void) const \
+  {                                                                                     \
+    return nullptr;                                                                     \
+  }
+#include "nest/stmt/Node.def"
+#undef STMT
+
+  template <typename T> T accept(Visitor<T> *v)
+  {
+#define STMT(Tag)                                 \
+  if (auto s = NEST_STMT_CAST_METHOD_NAME(Tag)()) \
+  {                                               \
+    return v->visit(s);                           \
+  }
+#include "nest/stmt/Node.def"
+#undef STMT
+
+    throw std::runtime_error{"unreachable"};
+  }
+
+  template <typename T> T accept(Visitor<T> &v) { return accept(&v); }
+};
+
+} // namespace stmt
+} // namespace nest
+
+#endif // __NEST_STMT_NODE_H__