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/****   , [ bobocheTree.hh ], 
Copyright (c) 2008 Universite d'Orleans - Jeremie Vautard 

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#ifndef __BOBOCHE_TREE__
#define __BOBOCHE_TREE__
#include <vector>
#include <iostream>
#include <string>
#include "StrategyNode.hh"
#include "qecode.hh"

using namespace std;
class Strategy;

class StrategyImp {
    friend class Strategy;
private:
    unsigned int pointers;
    StrategyNode zetag;
    vector<Strategy> nodes;
public:
    StrategyImp(StrategyNode tag);
    ~StrategyImp();    
};

class QECODE_VTABLE_EXPORT Strategy {
    friend class StrategyImp;
private:
    StrategyImp* imp;
public:
    QECODE_EXPORT Strategy(); 
    QECODE_EXPORT Strategy(StrategyNode tag); 
    
    /* \brief builds a one node (sub)strategy
        *
        * this method builds a one-node strategy that will typically be attached as child of another strategy. A strategy node embeds informations about quantification, 
        * scope and values of variables that must be provided
        * @param qt quantifier of the scope this node represents
        * @param VMin index of the first variable of the scope this node represents
        * @param VMax index of the last variable of the scope this node represents
        * @param values values taken by the variables between VMin and VMax in this part of the strategy
        */
    QECODE_EXPORT Strategy(bool qt,int VMin, int VMax, int scope,vector<int> values); 
    QECODE_EXPORT Strategy(const Strategy& tree); 
    QECODE_EXPORT Strategy& operator = (const Strategy& rvalue); 
    QECODE_EXPORT ~Strategy();
    QECODE_EXPORT StrategyNode getTag();
    QECODE_EXPORT int degree();
    QECODE_EXPORT Strategy getChild(int i); 
    QECODE_EXPORT void attach(Strategy child);
    
    QECODE_EXPORT bool isFalse() {return imp->zetag.isFalse();} 
    QECODE_EXPORT bool isTrue() {return imp->zetag.isTrue();} 
    QECODE_EXPORT bool isDummy() {return imp->zetag.isDummy();} 
    QECODE_EXPORT static Strategy STrue(); 
    QECODE_EXPORT static Strategy SFalse(); 
    QECODE_EXPORT static Strategy Dummy(); 
    
    QECODE_EXPORT bool quantifier() {return imp->zetag.quantifier;} 
    QECODE_EXPORT int VMin() {return imp->zetag.Vmin;} 
    QECODE_EXPORT int VMax() {return imp->zetag.Vmax;} 
    QECODE_EXPORT int scope() {return imp->zetag.scope;} 
    QECODE_EXPORT vector<int> values() {return imp->zetag.valeurs;} 
    QECODE_EXPORT int value(int var) {return imp->zetag.valeurs[var];}
};
#endif

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