1 files changed, 50 insertions, 0 deletions
diff --git a/compiler/loco/include/loco/IR/CanonicalNodeDecl.h b/compiler/loco/include/loco/IR/CanonicalNodeDecl.h
new file mode 100644
index 000000000..872edbb3e
--- /dev/null
+++ b/compiler/loco/include/loco/IR/CanonicalNodeDecl.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2019 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 __LOCO_IR_CANONICAL_NODE_DECL_H__
+#define __LOCO_IR_CANONICAL_NODE_DECL_H__
+
+#include "loco/IR/Node.h"
+#include "loco/IR/Dialect.h"
+#include "loco/IR/CanonicalOpcode.h"
+#include "loco/IR/CanonicalNodeVisitor.forward.h"
+
+namespace loco
+{
+
+struct CanonicalNode : public Node
+{
+  virtual ~CanonicalNode() = default;
+
+  const Dialect *dialect(void) const final;
+  virtual CanonicalOpcode opcode(void) const = 0;
+
+  template <typename T> T accept(CanonicalNodeVisitorBase<T> *) const;
+  template <typename T> T accept(CanonicalNodeMutableVisitorBase<T> *);
+};
+
+template <CanonicalOpcode Code, template <typename T> class... Mixins>
+struct CanonicalNodeDef : public virtual CanonicalNode, public Mixins<CanonicalNode>...
+{
+  virtual ~CanonicalNodeDef() = default;
+
+  uint32_t opnum(void) const final { return static_cast<uint32_t>(Code); }
+  CanonicalOpcode opcode(void) const final { return Code; }
+};
+
+} // namespace loco
+
+#endif // __LOCO_IR_CANONICAL_NODE_H__