mirror of https://gitee.com/bigwinds/arangodb
105 lines
4.2 KiB
C
105 lines
4.2 KiB
C
////////////////////////////////////////////////////////////////////////////////
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/// @brief Ahuacatl, variables
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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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#ifndef ARANGODB_AHUACATL_AHUACATL__VARIABLE_H
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#define ARANGODB_AHUACATL_AHUACATL__VARIABLE_H 1
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#include "Basics/Common.h"
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#include "Basics/tri-strings.h"
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#include "Basics/hashes.h"
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#include "Basics/vector.h"
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#include "Basics/associative.h"
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#include "Ahuacatl/ahuacatl-ast-node.h"
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// -----------------------------------------------------------------------------
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// --SECTION-- public types
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief a query variable
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////////////////////////////////////////////////////////////////////////////////
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typedef struct TRI_aql_variable_s {
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char* _name;
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TRI_aql_node_t* _definingNode;
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bool _isUpdated;
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}
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TRI_aql_variable_t;
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors / destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief register a new variable
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////////////////////////////////////////////////////////////////////////////////
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TRI_aql_variable_t* TRI_CreateVariableAql (char const*,
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TRI_aql_node_t*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief free an existing variable
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////////////////////////////////////////////////////////////////////////////////
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void TRI_FreeVariableAql (TRI_aql_variable_t*);
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief hash variable
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////////////////////////////////////////////////////////////////////////////////
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uint64_t TRI_HashVariableAql (TRI_associative_pointer_t*, void const*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief comparison function used to determine variable equality
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////////////////////////////////////////////////////////////////////////////////
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bool TRI_EqualVariableAql (TRI_associative_pointer_t*, void const*, void const*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief checks if a variable name follows the required naming convention
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////////////////////////////////////////////////////////////////////////////////
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bool TRI_IsValidVariableNameAql (char const*);
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#endif
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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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