functionState.h

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#if !defined(FUNCTION_STATE_H) && !defined(NO_FUNCTION_STATE_H)
#define FUNCTION_STATE_H

#include "analysisCommon.h"
#include "nodeState.h"
#include "CallGraphTraverse.h"
#include <map>
#include <set>

class FunctionState
{
        friend class CollectFunctions;
        public:
        Function func;
        NodeState state;
        // The lattices that describe the value of the function's return variables
        NodeState retState;

        private:
        static std::set<FunctionState*> allDefinedFuncs;        
        static std::set<FunctionState*> allFuncs;
        static bool allFuncsComputed;
                
        public:
        FunctionState(Function &func): 
                func(func),
                state(/*func.get_declaration()->cfgForBeginning()*/)
        {}
        
        Function& getFunc();
        
        // returns a set of all the functions whose bodies are in the project
        static std::set<FunctionState*>& getAllDefinedFuncs();
        
        // returns a set of all the functions whose declarations are in the project
        static std::set<FunctionState*>& getAllFuncs();
        
        // returns the FunctionState associated with the given function
        // func may be any defined function
        static FunctionState* getDefinedFuncState(const Function& func);
        
        // returns the FunctionState associated with the given function
        // func may be any declared function
        static FunctionState* getFuncState(const Function& func);
        
        // given a function call, sets argParamMap to map all simple arguments to this function to their 
        // corresponding parameters
        static void setArgParamMap(SgFunctionCallExp* call, std::map<varID, varID>& argParamMap);
        
        // given a function call, sets argParamMap to map all the parameters of this function to their 
        // corresponding simple arguments, if those arguments are passed by reference
        static void setParamArgByRefMap(SgFunctionCallExp* call, std::map<varID, varID>& paramArgByRefMap);
};

class CollectFunctions : public TraverseCallGraphUnordered/*TraverseCallGraphBottomUp<int>*/
{
        public:
        CollectFunctions(SgIncidenceDirectedGraph* graph) : TraverseCallGraphUnordered/*TraverseCallGraphBottomUp<int>*/(graph)
        {}
        
        //int visit(const CGFunction* func, list<int> fromCallees);
        void visit(const CGFunction* func);
        
        virtual ~CollectFunctions() {}
};

#endif