/ray/src/lib/sourcepos/sourcepos.h

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/*
 * lib/sourcepos/sourcepos.h
 * 
 * Classes for sophisticated source position (file/line/lpos, 
 * include hierarchy) handling. 
 * 
 * Copyright (c) 2003--2004 by Wolfgang Wieser ] wwieser (a) gmx <*> de [ 
 * 
 * This file may be distributed and/or modified under the terms of the 
 * GNU General Public License version 2 as published by the Free Software 
 * Foundation. (See COPYING.GPL for details.)
 * 
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 * 
 */

#ifndef _LIB_SOURCEPOS_SOURCEPOS_H_
#define _LIB_SOURCEPOS_SOURCEPOS_H_ 1

#include <lib/sconfig.h>    /* MUST be first */

#include <lib/tl/refnode.h>
#include <lib/sourcepos/sourcefile.h>


// As defined further down: 
class _InternalSourcePosition;

typedef RefNode<_InternalSourcePosition> SourcePosition;


class _InternalSourcePosition : InternalRefNodeBase_ThreadSave
{
    friend class SourcePositionArchive;
    friend class RefNode<_InternalSourcePosition>;
    friend bool operator==(const SourcePosition &a,const SourcePosition &b);
    public:
        static SourcePosition CreateSinglePosition(const SourceFileNode &sfn,
            int line,int lpos);
    private:
        SourceFileNode _file;   
        int _line;              
        int _lpos;              
        
        bool test_equal(const _InternalSourcePosition &b) const;
        
        _InternalSourcePosition(const _InternalSourcePosition &);
        void operator=(const _InternalSourcePosition &);
        
        _InternalSourcePosition(const SourceFileNode &fnode,int line,int lpos);
    public:
        ~_InternalSourcePosition();
        
        inline SourceFileNode file() const
            {  return(this ? _file : SourceFileNode());  }
        
        inline int line() const  {  return(this ? _line : (-1));  }
        inline int lpos() const  {  return(this ? _lpos : (-1));  }
        inline TLString path() const
            {  return(this ? _file->path() : TLString());  }
        
        inline void SetLine(int l)  {  if(this)  _line=l;  }
        inline void SetLPos(int l)  {  if(this)  _lpos=l;  }
        
        TLString PosString(bool with_file=1) const;
        
        TLString PosRangeString(const SourcePosition &end,
            bool with_file=1) const;
        
        TLString PosStringRelative(const SourcePosition &rpos) const;
        
        TLString IncludeHierarchyStr() const;
};


inline bool operator==(const SourcePosition &a,const SourcePosition &b)
    {  return((a && b) ? a->test_equal(*b) : (!a && !b));  }

inline bool operator!=(const SourcePosition &a,const SourcePosition &b)
    {  return(!operator==(a,b));  }

#endif  /* _LIB_SOURCEPOS_SOURCEPOS_H_ */

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