ExpressionParserHelper.h

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef DERIVATIONFRAMEWORKINTERFACES_EXPRESSIONPARSERHELPER_H
#define DERIVATIONFRAMEWORKINTERFACES_EXPRESSIONPARSERHELPER_H
 
// Framework include(s):
#include "GaudiKernel/ServiceHandle.h"
#include "StoreGate/StoreGateSvc.h"
 
// Expression parsing include(s):
#include "ExpressionEvaluation/SGxAODProxyLoader.h"
#include "ExpressionEvaluation/SGNTUPProxyLoader.h"
#include "ExpressionEvaluation/MultipleProxyLoader.h"
#include "ExpressionEvaluation/ExpressionParser.h"
 
namespace DerivationFramework {
 
   class ExpressionParserHelper {
 
   public:
      ExpressionParserHelper( ServiceHandle< StoreGateSvc >& evtStore )
         : m_xaodLoader( evtStore ), m_ntupLoader( evtStore ),
       m_proxyLoader({&m_xaodLoader, &m_ntupLoader}), m_parser( &m_proxyLoader ) {
      }
 
      ExpressionParsing::ExpressionParser& parser() {
         return m_parser;
      }
 
   private:
      ExpressionParsing::SGxAODProxyLoader m_xaodLoader;
      ExpressionParsing::SGNTUPProxyLoader m_ntupLoader;
      ExpressionParsing::MultipleProxyLoader m_proxyLoader;
      ExpressionParsing::ExpressionParser m_parser;
 
   }; // class ExpressionParserHelper
 
} // namespace DerivationFramework
 
#endif // DERIVATIONFRAMEWORKINTERFACES_EXPRESSIONPARSERHELPER_H