EvalContext.h

/*
 * File:    EvalContext.h
 *
 * Copyright (c) Freescale Semiconductor, Inc. All rights reserved.
 * See included license file for license details.
 */
#if !defined(_EvalContext_h_)
#define _EvalContext_h_

#include <map>
#include <string>
#include "Value.h"
#include "int_size.h"
#include "SourceFile.h"

namespace elftosb
{
class EvalContext
{
public:
    class SourceFileManager
    {
    public:
        virtual bool hasSourceFile(const std::string &name) = 0;

        virtual SourceFile *getSourceFile(const std::string &name) = 0;

        virtual SourceFile *getDefaultSourceFile() = 0;
    };

public:
    EvalContext();

    virtual ~EvalContext();


    void setSourceFileManager(SourceFileManager *manager) { m_sourcesManager = manager; }
    SourceFileManager *getSourceFileManager() { return m_sourcesManager; }


    bool isVariableDefined(const std::string &name);
    uint32_t getVariableValue(const std::string &name);
    int_size_t getVariableSize(const std::string &name);
    void setVariable(const std::string &name, uint32_t value, int_size_t size = kWordSize);


    bool isVariableLocked(const std::string &name);
    void lockVariable(const std::string &name);
    void unlockVariable(const std::string &name);

    void dump();

protected:
    struct variable_info_t
    {
        uint32_t m_value;  
        int_size_t m_size; 
        bool m_isLocked;   
    };

    typedef std::map<std::string, variable_info_t> variable_map_t;

    SourceFileManager *m_sourcesManager; 
    variable_map_t m_variables;          
};

}; // namespace elftosb

#endif // _EvalContext_h_