AST_FILE_IO.h

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/* #line 1 "/export/tmp.hudson-rose/hudson/workspace/a90-ROSE-daily-release/label/amd64-linux/src/ROSETTA/Grammar/grammarAST_FileIoHeader.code" */

#ifndef AST_FILE_IO_HEADER
#define AST_FILE_IO_HEADER
#include "AstSpecificDataManagingClass.h"
#include <ostream>
#include <string>
/* JH (11/23/2005) : This class provides all memory management ans methods to handle the 
   file storage of ASTs. For more inforamtion about the methods have a look at :
   src/ROSETTA/Grammar/grammarAST_FileIoHeader.code
*/


#define REGISTER_ATTRIBUTE_FOR_FILE_IO(CLASS_TO_BE_REGISTERED ) AST_FILE_IO::registerAttribute<CLASS_TO_BE_REGISTERED> ( ) ;

typedef AstSpecificDataManagingClass AstData;

class AST_FILE_IO
   {
     public:

#if 1
  // This class is used only for debugging...
     class MemoryCheckingTraversalForAstFileIO : public ROSE_VisitTraversal
        {
          public:
            // int counter;

               void visit ( SgNode* node )
                  {
                    ROSE_ASSERT(node != NULL);
                 // printf ("MemoryCheckingTraversalForAstFileIO::visit: node = %s \n",node->class_name().c_str());
                    ROSE_ASSERT(node->get_freepointer() == AST_FileIO::IS_VALID_POINTER());
                    node->checkDataMemberPointersIfInMemoryPool();
                  }
        };
#endif

       typedef AstAttribute* (AstAttribute::*CONSTRUCTOR)( void );
  /* We are using the V_Sg... enumeration. Additionally, we introduce totalNumberOfIRNodes the number
     of non terminals and terminals .
  */
     private:
       enum { totalNumberOfIRNodes = 712}; 
       static unsigned long binarySearch( unsigned long globalIndex, int start = 0 , int end = totalNumberOfIRNodes );
       static unsigned long linearSearch( unsigned long globalIndex ) ;
       static std :: map < std::string, CONSTRUCTOR > registeredAttributes; 
       static bool freepointersOfCurrentAstAreSetToGlobalIndices;
       static unsigned long listOfMemoryPoolSizes [ totalNumberOfIRNodes + 1] ;
    // searches pointerContainingGlobalIndex in regions of listOfAccumulatedPoolSizes, in order to compute the global index 
       static SgNode* getPointerFromGlobalIndex ( unsigned long globalIndex ); 
       static std::vector<AstData*> vectorOfASTs ;
       static AstData *actualRebuildAst; 

     public:
    // sets up the lost of pool sizes that contain valid entries 
       static void startUp ( SgProject* root ); 

    // sets up the lost of pool sizes that contain valid entries 
       static unsigned long getSizeOfMemoryPool ( const int position ); 
       static unsigned long getSizeOfMemoryPoolUpToAst ( AstData* astInPool, const int position ); 
       static unsigned long getAccumulatedPoolSizeOfNewAst( const int position);
       static unsigned long getAccumulatedPoolSizeOfAst( AstData* astInPool, const int position);
       static unsigned long getPoolSizeOfNewAst( const int sgVariant);
       static unsigned long getTotalNumberOfNodesOfAstInMemoryPool ( ); 
       static unsigned long getTotalNumberOfNodesOfNewAst ();
       static bool areFreepointersContainingGlobalIndices ( );

    // some methods not used so far ... or not more used   
       static unsigned long getGlobalIndexFromSgClassPointer ( SgNode* pointer ) ;
       static SgNode* getSgClassPointerFromGlobalIndex ( unsigned long globalIndex) ;
       static void compressAstInMemoryPool() ;
       static void resetValidAstAfterWriting();
       static void clearAllMemoryPools ( );
       static void deleteStaticData( );
       static void deleteStoredAsts( );
       static void setStaticDataOfAst(AstData* astInPool);
       static int getNumberOfAsts ();
       static void addNewAst (AstData* newAst);
       static void extendMemoryPoolsForRebuildingAST ( );
       static void writeASTToStream ( std::ostream& out );
       static void writeASTToFile ( std::string fileName );
       static std::string writeASTToString ();
       static SgProject* readASTFromStream ( std::istream& in );
       static SgProject* readASTFromFile (std::string fileName );
       static SgProject* readASTFromString ( const std::string& s );
       static void printFileMaps () ;
       static void printListOfPoolSizes () ;
       static void printListOfPoolSizesOfAst (int index) ;
       static AstData* getAst (int index) ;
       static AstData* getAstWithRoot (SgProject* root) ;

       template <class TYPE>
       static void registerAttribute ( ); 
       static const std::map <std::string, CONSTRUCTOR>& getRegisteredAttributes ();

    // DQ (2/27/2010): Reset the AST File I/O data structures to permit writing a file after the reading and merging of files.
       static void reset();

    // DQ (2/27/2010): Show what the values are for debugging (e.g. write after read).
       static void display(const std::string & label);
   };


template <class TYPE>
inline void 
 AST_FILE_IO::registerAttribute ( ) 
   { 
      std::string name = TYPE().attribute_class_name();
      if ( registeredAttributes.find ( name ) == registeredAttributes.end() )
         { 
           registeredAttributes[name] = (CONSTRUCTOR)(&TYPE::constructor) ;
         }
   }

inline const std::map <std::string, AST_FILE_IO::CONSTRUCTOR>& 
 AST_FILE_IO::getRegisteredAttributes ( )
   {
     return registeredAttributes; 
   } 
#endif //AST_FILE_IO_HEADER

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