LuaAPI.h

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#ifndef LUAAPI_H_
#define LUAAPI_H_

#include "missionScript/ScriptAPI.h"

class lua_State;
class DataReader;
class DataWriter;
class InputInfo;
class LuaNode;
class ScriptNode;
class Unit;

class LuaAPI: public ScriptAPI
{
public:

    virtual ~LuaAPI();

    virtual ScriptNode* makeScriptFunction( const char* moduleName,
                                            const char* componentName, const char* methodName,
                                            FlexArray<InputInfo*>& inputs, FlexArray<SettingInfo*>& settings,
                                            const char* code, Logger& logger );

protected:

    friend class LuaMissionAPI;

    class LuaState
    {
    public:
        LuaState();
        ~LuaState();
        operator lua_State*()
        {
            return lua_;
        }
    private:
        // Note that the copy constructor below is private and not given a body.
        // Any attempt to call it will return a compiler error.
        LuaState( const LuaState& old ); // disallow copy constructor
        lua_State* lua_;
    };

    static LuaState LUA_;

    friend class LuaNode;

    static const char* LoadFile( const char* filename );

    static const char* Exec( const char* command );

    static bool Exec( FlexArray<DataReader*>* inputs, FlexArray<SettingReader*>* settings,
                      bool& boolValue, FlexArray<DataWriter*>* outputs, FlexArray<const Unit*>* outUnits,
                      Logger& logger );

    static const char* Run();

    static const char* RunFunction( const char* functionName, Str& returnValue, bool isRoot = false );

    static bool IsTable( bool isRoot );

    static bool OpenTableItemByIndex( int index, bool isRoot );

    static bool OpenTableItemByName( const char* name, bool isRoot );

    static void PushNil();

    static int GetStackHeight();

    static int GetTableSize( bool isRoot );

    static void CloseTableItem();

    static bool GetBool( bool& readTo, bool isRoot );

    static bool GetNumber( double& readTo, bool isRoot );

    static bool GetString( Str& readTo, bool isRoot );

    static bool NewTable( const char* name, bool isRoot );

    static const char* NewFunction( const char* functionName, const char* functionBody, bool isRoot );

private:
    // Note that the copy constructor below is private and not given a body.
    // Any attempt to call it will return a compiler error.
    LuaAPI( const LuaAPI& old ); // disallow copy constructor

    LuaAPI();

    static LuaAPI Instance_;

    LuaNode* rootNode_;

};

#endif /* LUAAPI_H_ */