mirror of https://gitee.com/bigwinds/arangodb
85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2018 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 Andrey Abramov
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/// @author Vasiliy Nabatchikov
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_IRESEARCH__IRESEARCH_EXPRESSION_CONTEXT_H
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#define ARANGOD_IRESEARCH__IRESEARCH_EXPRESSION_CONTEXT_H 1
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#include "Aql/QueryExpressionContext.h"
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#include "Basics/Exceptions.h"
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namespace arangodb {
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namespace aql {
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class AqlItemBlock;
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struct AstNode;
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class ExecutionEngine;
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} // namespace aql
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namespace iresearch {
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class IResearchViewNode;
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///////////////////////////////////////////////////////////////////////////////
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/// @struct ViewExpressionContextBase
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/// @brief FIXME remove this struct once IResearchView will be able to evaluate
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/// epxressions with loop variable in SEARCH expressions
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///////////////////////////////////////////////////////////////////////////////
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struct ViewExpressionContextBase : public aql::QueryExpressionContext {
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explicit ViewExpressionContextBase(arangodb::aql::Query* query)
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: aql::QueryExpressionContext(query) {}
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aql::AstNode const* _expr{}; // for troubleshooting
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}; // ViewExpressionContextBase
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///////////////////////////////////////////////////////////////////////////////
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/// @struct ViewExpressionContext
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///////////////////////////////////////////////////////////////////////////////
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struct ViewExpressionContext final : public ViewExpressionContextBase {
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ViewExpressionContext(arangodb::aql::Query* query, IResearchViewNode const& node)
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: ViewExpressionContextBase(query), _node(&node) {
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TRI_ASSERT(_node);
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}
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virtual size_t numRegisters() const override;
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virtual aql::AqlValue const& getRegisterValue(size_t i) const override {
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THROW_ARANGO_EXCEPTION(TRI_ERROR_NOT_IMPLEMENTED);
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}
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virtual aql::Variable const* getVariable(size_t i) const override {
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THROW_ARANGO_EXCEPTION(TRI_ERROR_NOT_IMPLEMENTED);
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}
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virtual aql::AqlValue getVariableValue(aql::Variable const* variable, bool doCopy,
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bool& mustDestroy) const override;
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aql::AqlItemBlock const* _data{};
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IResearchViewNode const* _node;
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size_t _pos{};
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}; // ViewExpressionContext
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} // namespace iresearch
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} // namespace arangodb
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#endif // ARANGOD_IRESEARCH__IRESEARCH_EXPRESSION_CONTEXT_H 1
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