mirror of https://gitee.com/bigwinds/arangodb
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
|
|
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Jan Steemann
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef ARANGOD_AQL_QUANTIFIER_H
|
|
#define ARANGOD_AQL_QUANTIFIER_H 1
|
|
|
|
#include "Basics/Common.h"
|
|
|
|
namespace arangodb {
|
|
namespace aql {
|
|
struct AstNode;
|
|
|
|
struct Quantifier {
|
|
static int64_t const NONE;
|
|
static int64_t const ALL;
|
|
static int64_t const ANY;
|
|
|
|
/// @brief converts a quantifier string into an int equivalent
|
|
static int64_t FromString(std::string const& value);
|
|
|
|
/// @brief converts a quantifier int value into its string equivalent
|
|
static std::string Stringify(int64_t value);
|
|
|
|
static bool IsAllOrNone(AstNode const* quantifier);
|
|
|
|
/// @brief determine the min/max number of matches for an array comparison
|
|
static std::pair<size_t, size_t> RequiredMatches(size_t inputSize, AstNode const* quantifier);
|
|
};
|
|
} // namespace aql
|
|
} // namespace arangodb
|
|
|
|
#endif
|