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// index_set.h
/**
* Copyright (C) 2013 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <set>
#include "mongo/base/string_data.h"
namespace mongo {
/**
* a.$ -> a
* @return true if out is set and we made a change
*/
bool getCanonicalIndexField( const StringData& fullName, std::string* out );
class IndexPathSet {
public:
IndexPathSet();
void addPath( const StringData& path );
void allPathsIndexed();
void clear();
bool mightBeIndexed( const StringData& path ) const;
private:
bool _startsWith( const StringData& a, const StringData& b ) const;
std::set<std::string> _canonical;
bool _allPathsIndexed;
};
}
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