LuaDataModel.h

Go to the documentation of this file.

#ifndef LUADATAMODEL_H_113E014C
#define LUADATAMODEL_H_113E014C

#include "uscxml/config.h"
#include "uscxml/plugins/DataModelImpl.h"
#include <list>

extern "C" {
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
}

#ifdef BUILD_AS_PLUGINS
#include "uscxml/plugins/Plugins.h"
#endif


namespace uscxml {
class Event;
class Data;
}

namespace uscxml {

class LuaDataModel : public DataModelImpl {
public:
    LuaDataModel();
    virtual ~LuaDataModel();
    virtual std::shared_ptr<DataModelImpl> create(DataModelCallbacks* callbacks);

    virtual void addExtension(DataModelExtension* ext);

    virtual std::list<std::string> getNames() {
        std::list<std::string> names;
        names.push_back("lua");
        return names;
    }

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

    virtual void setEvent(const Event& event);

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

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

    virtual void assign(const std::string& location,
                        const Data& data,
                        const std::map<std::string, std::string>& attr = std::map<std::string, std::string>());
    virtual void init(const std::string& location,
                      const Data& data,
                      const std::map<std::string, std::string>& attr = std::map<std::string, std::string>());

protected:

    static int luaInFunction(lua_State * l);

    lua_State* _luaState;
};

#ifdef BUILD_AS_PLUGINS
PLUMA_INHERIT_PROVIDER(LuaDataModel, DataModelImpl)
#endif

}

#endif /* end of include guard: LUADATAMODEL_H_113E014C */