import quincy 17.2.0

[ceph.git] / ceph / src / arrow / cpp / src / gandiva / node_visitor.h

diff --git a/ceph/src/arrow/cpp/src/gandiva/node_visitor.h b/ceph/src/arrow/cpp/src/gandiva/node_visitor.h
new file mode 100644 (file)
index 0000000..8f233f5
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+++ b/ceph/src/arrow/cpp/src/gandiva/node_visitor.h
@@ -0,0 +1,56 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.
+
+#pragma once
+
+#include <cmath>
+#include <string>
+
+#include "arrow/status.h"
+
+#include "arrow/util/logging.h"
+#include "gandiva/visibility.h"
+
+namespace gandiva {
+
+class FieldNode;
+class FunctionNode;
+class IfNode;
+class LiteralNode;
+class BooleanNode;
+template <typename Type>
+class InExpressionNode;
+
+/// \brief Visitor for nodes in the expression tree.
+class GANDIVA_EXPORT NodeVisitor {
+ public:
+  virtual ~NodeVisitor() = default;
+
+  virtual Status Visit(const FieldNode& node) = 0;
+  virtual Status Visit(const FunctionNode& node) = 0;
+  virtual Status Visit(const IfNode& node) = 0;
+  virtual Status Visit(const LiteralNode& node) = 0;
+  virtual Status Visit(const BooleanNode& node) = 0;
+  virtual Status Visit(const InExpressionNode<int32_t>& node) = 0;
+  virtual Status Visit(const InExpressionNode<int64_t>& node) = 0;
+  virtual Status Visit(const InExpressionNode<float>& node) = 0;
+  virtual Status Visit(const InExpressionNode<double>& node) = 0;
+  virtual Status Visit(const InExpressionNode<gandiva::DecimalScalar128>& node) = 0;
+  virtual Status Visit(const InExpressionNode<std::string>& node) = 0;
+};
+
+}  // namespace gandiva