ClpPack.h

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/*
 *      $Id$
 *      CLP Pack definition
 *      
 *      This file is part of OTAWA
 *      Copyright (c) 2011, IRIT UPS.
 *      
 *      OTAWA 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 2 of the License, or
 *      (at your option) any later version.
 *      
 *      OTAWA 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 OTAWA; if not, write to the Free Software
 *      Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 *      02110-1301  USA
 */

#ifndef OTAWA_DATA_CLP_PACK_H_
#define OTAWA_DATA_CLP_PACK_H_

#include <elm/genstruct/Vector.h>
#include <otawa/data/clp/ClpState.h>

namespace otawa {

namespace clp {

class ClpProblem;


class ClpStatePack{
        friend class ClpProblem;
public:
        typedef Vector<clp::State*>::Iterator StateIterator;
        
        class InstPack{
        friend class ClpStatePack; friend class ClpProblem;
        public:
                inline InstPack(): _inst_addr(0), _states() {}
                inline InstPack(address_t inst): _inst_addr(inst), _states() {}
                ~InstPack(void);
                inline address_t inst_addr(void) { return _inst_addr; }
                inline StateIterator getIterator(void) { return StateIterator(_states);}
                clp::State& outputState(void) { 
                        ASSERT(_states.length() > 0);
                        return *(_states[_states.length() - 1]);
                }
                bool isEmpty(void){ return _states.length() == 0; }
                void append(clp::State &state);
        private:
                address_t _inst_addr;
                Vector<clp::State*> _states;
        };

        class Context {
        public:
                Context(Process *process);
                Context(ClpProblem& problem);
                ~Context(void);
                inline ClpProblem& problem(void) const { return *prob; }
        private:
                ClpProblem *prob;
                bool to_free;
        };
        
        typedef Vector<InstPack*>::Iterator PackIterator;
        
        ClpStatePack(BasicBlock *bb, Process *process);
        ClpStatePack(BasicBlock *bb, const Context& context);
        ~ClpStatePack(void);
        
        inline BasicBlock *bb(void){ return _bb; }
        inline PackIterator getIterator(void) { return PackIterator(_packs); }
        
        clp::State state_after(address_t instruction);
        clp::State state_after(address_t instruction, int sem);
        clp::State state_before(address_t instruction);
        clp::State state_before(address_t instruction, int sem);
        
        InstPack* newPack(address_t inst);
        
private:
        BasicBlock *_bb;
        Vector<InstPack*> _packs;
};

}       // clp

}       // otawa

#endif /* OTAWA_DATA_CLP_PACK_H_ */