mirror of https://gitee.com/bigwinds/arangodb
47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2019 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Christoph Uhde
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_AQL_AST_HELPER_H
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#define ARANGOD_AQL_AST_HELPER_H 1
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#include <string>
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#include <unordered_set>
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#include "Containers/SmallVector.h"
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namespace arangodb {
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namespace aql {
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struct AstNode;
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struct Variable;
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namespace ast {
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/// @brief determines the to-be-kept attribute of an INTO expression
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std::unordered_set<std::string> getReferencedAttributesForKeep(
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AstNode const* node, ::arangodb::containers::SmallVector<Variable const*> searchVariables,
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bool& isSafeForOptimization);
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} // namespace ast
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} // namespace aql
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} // namespace arangodb
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#endif
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