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HxSadInterpreter.h

/*
 *  Copyright (c) 1998, University of Amsterdam, The Netherlands.
 *  All rights reserved.
 *
 *
 *  Author(s):
 *  Dennis Koelma (koelma@wins.uva.nl)
 *  Edo Poll (poll@wins.uva.nl)
 */

#ifndef HxSadInterpreter_h
#define HxSadInterpreter_h

#include "HxStd.h"

#include "list"

#include "HxSyntaxLeafNode.h"
#include "HxSyntaxBranchNode.h"

class HxScanner;

class HxRegKey;
class HxRegistry;

class HxSadInterpreter
{
public:
    static HxSadInterpreter&    instance();

    void                        setRegistry(HxRegistry& registry);

    void                        argumentDefinition(HxSyntaxNode* argDef);

    void                        beginClass(
                                    HxSyntaxNode* head,
                                    HxSyntaxNode* storage,
                                    HxSyntaxNode* delegate);
    void                        endClass();

    void                        functionDeclaration(HxSyntaxNode* mfDecl);

    HxString                    thisClass() const;

    void                        beginMenu(HxSyntaxNode*);
    void                        endMenu(HxSyntaxNode*);
    void                        beginMenuItem(HxSyntaxNode*);
    void                        endMenuItem(HxSyntaxNode*);

private:
                                HxSadInterpreter();
                                HxSadInterpreter(const HxSadInterpreter&);

    friend class HxSadInterpreterFriend;

    void                        reportError(int lineNr, HxString msg) const;

    HxScanner*                  _scanner;

    struct ClassInfo {
        int                     _inClass;
        HxString                _thisClass;
        HxString                _delegateClass;
        int                     _hasDelegate;
        int                     _isHeap;
    };

    ClassInfo                   _classInfo;
    HxRegistry*                 _registry;
    HxRegKey*                   _classesKey;
    HxRegKey*                   _methodsKey;
    HxRegKey*                   _functionsKey;
    HxRegKey*                   _thisClassKey;
    HxRegKey*                   _argumentsKey;
    HxRegKey*                   _menusKey;

    struct MenuFrame
    {
                                MenuFrame();
                                MenuFrame(HxString, HxRegKey*, int);
        HxString                label;
        HxRegKey*               key;
        int                     nItems;
    };

    typedef list<MenuFrame>                 MenuFrameList;
    typedef MenuFrameList::const_iterator   MenuFrameListConstIter;

    MenuFrameList               _menuStack;
    MenuFrame*                  _menuFrame;
};

inline HxString
HxSadInterpreter::thisClass() const 
{ 
    return _classInfo._thisClass; 
}

inline
HxSadInterpreter::MenuFrame::MenuFrame()
{
}

inline
HxSadInterpreter::MenuFrame::MenuFrame(HxString l, HxRegKey* k, int n)
    : label(l), key(k), nItems(n) 
{
}

#endif

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