VisitorApplier.hpp

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// Torc - Copyright 2011-2013 University of Southern California.  All Rights Reserved.
// $HeadURL$
// $Id$

// This program is free software: you can redistribute it and/or modify it under the terms of the 
// GNU General Public License as published by the Free Software Foundation, either version 3 of the 
// License, or (at your option) any later version.
// 
// 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 General Public License for more details.
// 
// You should have received a copy of the GNU General Public License along with this program.  If 
// not, see <http://www.gnu.org/licenses/>.

#ifndef TORC_GENERIC_VISITORAPPLIER_HPP
#define TORC_GENERIC_VISITORAPPLIER_HPP

namespace torc {
namespace generic {

/**
 * This is an utility functor class that can be used to apply
 * visitor to a list of genOM objects. The type _Tp should be
 * replaced by the visitor type.
 */

template <typename _Tp> class VisitorApplier {
public:
    VisitorApplier(_Tp& inVisitor) :
        mVisitor(inVisitor) {
    }

    template <typename _Up> void operator()(const boost::shared_ptr<_Up>& inVisited) const
        throw (Error) {
        try {
            inVisited->accept(mVisitor);
        } catch(Error& e) {
            e.setCurrentLocation(__FUNCTION__, __FILE__, __LINE__);
            throw;
        }
    }
private:
    /*mutable*/ _Tp& mVisitor;
};

} //namespace generic
} //namespace torc

#endif // TORC_GENERIC_VISITORAPPLIER_HPP