mirror of https://gitee.com/bigwinds/arangodb
47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS 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 Steemann
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////////////////////////////////////////////////////////////////////////////////
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#include "DocumentExpressionContext.h"
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#include "Aql/AqlValue.h"
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using namespace arangodb::aql;
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DocumentExpressionContext::DocumentExpressionContext(Query* query,
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arangodb::velocypack::Slice document)
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: QueryExpressionContext(query), _document(document) {}
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size_t DocumentExpressionContext::numRegisters() const {
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// hard-coded
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return 1;
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}
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AqlValue DocumentExpressionContext::getVariableValue(Variable const*, bool doCopy,
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bool& mustDestroy) const {
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if (doCopy) {
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mustDestroy = true; // as we are copying
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return AqlValue(AqlValueHintCopy(_document.start()));
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}
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mustDestroy = false;
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return AqlValue(AqlValueHintDocumentNoCopy(_document.start()));
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}
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