1 files changed, 87 insertions, 0 deletions
diff --git a/compiler/luci/lang/include/luci/IR/CircleNodeVisitor.h b/compiler/luci/lang/include/luci/IR/CircleNodeVisitor.h
new file mode 100644
index 000000000..43339fe84
--- /dev/null
+++ b/compiler/luci/lang/include/luci/IR/CircleNodeVisitor.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2020 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 __LUCI_IR_CIRCLENODE_VISITOR_H__
+#define __LUCI_IR_CIRCLENODE_VISITOR_H__
+
+#include "CircleNode.h"
+#include "CircleNodes.h"
+
+#include <oops/InternalExn.h>
+
+namespace luci
+{
+
+/**
+ * DO NOT use this class. Use CircleNodeVisitor instead.
+ */
+template <typename T> struct CircleNodeVisitorBase
+{
+  virtual ~CircleNodeVisitorBase() = default;
+
+#define CIRCLE_NODE(OPCODE, CIRCLE_CLASS) virtual T visit(const CIRCLE_CLASS *) = 0;
+
+#include "CircleNodes.lst"
+#undef CIRCLE_NODE
+};
+
+template <typename T> struct CircleNodeVisitor : public CircleNodeVisitorBase<T>
+{
+  virtual ~CircleNodeVisitor() = default;
+
+#define CIRCLE_NODE(OPCODE, CIRCLE_CLASS) \
+  virtual T visit(const CIRCLE_CLASS *node) { return visit(static_cast<const CircleNode *>(node)); }
+
+#include "CircleNodes.lst"
+
+#undef CIRCLE_NODE
+
+  /// @brief Default fallback
+  virtual T visit(const CircleNode *) { INTERNAL_EXN("CircleNodeVisitor: NYI node"); }
+};
+
+/**
+ * DO NOT use this class. Use CircleNodeMutableVisitor instead.
+ */
+template <typename T> struct CircleNodeMutableVisitorBase
+{
+  virtual ~CircleNodeMutableVisitorBase() = default;
+
+#define CIRCLE_NODE(OPCODE, CIRCLE_CLASS) virtual T visit(CIRCLE_CLASS *) = 0;
+
+#include "CircleNodes.lst"
+
+#undef CIRCLE_NODE
+};
+
+template <typename T> struct CircleNodeMutableVisitor : public CircleNodeMutableVisitorBase<T>
+{
+  virtual ~CircleNodeMutableVisitor() = default;
+
+#define CIRCLE_NODE(OPCODE, CIRCLE_CLASS) \
+  virtual T visit(CIRCLE_CLASS *node) { return visit(static_cast<CircleNode *>(node)); }
+
+#include "CircleNodes.lst"
+
+#undef CIRCLE_NODE
+
+  /// @brief Default fallback
+  virtual T visit(CircleNode *) { INTERNAL_EXN("CircleNodeMutableVisitor: NYI node"); }
+};
+
+} // namespace luci
+
+#endif // __LUCI_IR_CircleNode_VISITOR_H__