DataModel.h

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#ifndef DATAMODEL_H_F1F776F9
#define DATAMODEL_H_F1F776F9

#include "uscxml/Common.h"
#include "uscxml/messages/Event.h"

#include <list>
#include <string>
#include <memory>

namespace uscxml {

class DataModelImpl;
class DataModelExtension;

class USCXML_API DataModel {
public:

    PIMPL_OPERATORS(DataModel);

    virtual std::list<std::string> getNames();
    virtual bool isValidSyntax(const std::string& expr);

    virtual void setEvent(const Event& event);

    virtual Data getAsData(const std::string& content);
    virtual Data evalAsData(const std::string& content);
    virtual bool evalAsBool(const std::string& expr);

    virtual uint32_t getLength(const std::string& expr);
    virtual void setForeach(const std::string& item,
                            const std::string& array,
                            const std::string& index,
                            uint32_t iteration);

    virtual void assign(const std::string& location, const Data& data);
    virtual void init(const std::string& location, const Data& data);

    virtual bool isDeclared(const std::string& expr);

    size_t replaceExpressions(std::string& content);
    std::string andExpressions(std::list<std::string> expressions);

    virtual void addExtension(DataModelExtension* ext);

protected:
    std::shared_ptr<DataModelImpl> _impl;
};


}


#endif /* end of include guard: DATAMODEL_H_F1F776F9 */