mirror of https://gitee.com/bigwinds/arangodb
75 lines
2.5 KiB
C++
75 lines
2.5 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 Michael Hackstein
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////////////////////////////////////////////////////////////////////////////////
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#include "FixedVarExpressionContext.h"
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#include "Aql/AqlValue.h"
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#include "Aql/Variable.h"
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#include <velocypack/Builder.h>
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#include <velocypack/velocypack-aliases.h>
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using namespace arangodb;
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using namespace arangodb::aql;
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size_t FixedVarExpressionContext::numRegisters() const { return 0; }
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AqlValue const& FixedVarExpressionContext::getRegisterValue(size_t i) const {
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THROW_ARANGO_EXCEPTION(TRI_ERROR_NOT_IMPLEMENTED);
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}
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Variable const* FixedVarExpressionContext::getVariable(size_t i) const {
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THROW_ARANGO_EXCEPTION(TRI_ERROR_NOT_IMPLEMENTED);
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}
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AqlValue FixedVarExpressionContext::getVariableValue(Variable const* variable, bool doCopy,
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bool& mustDestroy) const {
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mustDestroy = false;
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auto it = _vars.find(variable);
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if (it == _vars.end()) {
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TRI_ASSERT(false);
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return AqlValue(AqlValueHintNull());
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}
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if (doCopy) {
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mustDestroy = true;
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return it->second.clone();
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}
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return it->second;
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}
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void FixedVarExpressionContext::clearVariableValues() { _vars.clear(); }
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void FixedVarExpressionContext::setVariableValue(Variable const* var, AqlValue const& value) {
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_vars.emplace(var, value);
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}
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void FixedVarExpressionContext::serializeAllVariables(transaction::Methods* trx,
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VPackBuilder& builder) const {
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TRI_ASSERT(builder.isOpenArray());
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for (auto const& it : _vars) {
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builder.openArray();
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it.first->toVelocyPack(builder);
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it.second.toVelocyPack(trx, builder, true);
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builder.close();
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}
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}
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