mirror of https://gitee.com/bigwinds/arangodb
104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief Aql, expression
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2014 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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/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
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/// @author Copyright 2012-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "Aql/Expression.h"
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#include "Aql/Ast.h"
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#include "Aql/Types.h"
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#include "Aql/V8Executor.h"
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#include "Aql/V8Expression.h"
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#include "Aql/Variable.h"
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#include "Utils/Exception.h"
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using namespace triagens::aql;
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors / destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create the expression
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////////////////////////////////////////////////////////////////////////////////
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Expression::Expression (V8Executor* executor,
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AstNode const* node)
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: _executor(executor),
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_node(node),
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_func(nullptr) {
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TRI_ASSERT(_executor != nullptr);
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TRI_ASSERT(_node != nullptr);
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// TODO: catch return value and store in V8 persistent handle
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_func = _executor->generateExpression(node);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destroy the expression
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////////////////////////////////////////////////////////////////////////////////
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Expression::~Expression () {
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if (_func != nullptr) {
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delete _func;
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}
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief return all variables used in the expression
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////////////////////////////////////////////////////////////////////////////////
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std::unordered_set<Variable*> Expression::variables () const {
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return Ast::getReferencedVariables(_node);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief execute the expression
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////////////////////////////////////////////////////////////////////////////////
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AqlValue Expression::execute (AQL_TRANSACTION_V8* trx,
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std::vector<TRI_document_collection_t const*>& docColls,
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std::vector<AqlValue>& argv,
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size_t startPos,
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std::vector<Variable*> const& vars,
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std::vector<RegisterId> const& regs) {
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return _func->execute(trx, docColls, argv, startPos, vars, regs);
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- END-OF-FILE
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// -----------------------------------------------------------------------------
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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