C++ SgLocatedNode::getFileName方法代码示例

string globalUnparseToString ( SgNode* astNode, SgUnparse_Info* inputUnparseInfoPointer )
{
  // This global function permits any SgNode (including it's subtree) to be turned into a string

  // DQ (3/2/2006): Let's make sure we have a valid IR node!
     ROSE_ASSERT(astNode != NULL);

     string returnString;

  // all options are now defined to be false. When these options can be passed in
  // from the prompt, these options will be set accordingly.
     bool _auto                         = false;
     bool linefile                      = false;
     bool useOverloadedOperators        = false;
     bool num                           = false;

  // It is an error to have this always turned off (e.g. pointer = this; will not unparse correctly)
     bool _this                         = true;

     bool caststring                    = false;
     bool _debug                        = false;
     bool _class                        = false;
     bool _forced_transformation_format = false;
     bool _unparse_includes             = false;

  // printf ("In globalUnparseToString(): astNode->sage_class_name() = %s \n",astNode->sage_class_name());

     Unparser_Opt roseOptions( _auto,
                               linefile,
                               useOverloadedOperators,
                               num,
                               _this,
                               caststring,
                               _debug,
                               _class,
                               _forced_transformation_format,
                               _unparse_includes );

     int lineNumber = 0;  // Zero indicates that ALL lines should be unparsed

     // Initialize the Unparser using a special string stream inplace of the usual file stream 
     ostringstream outputString;

     SgLocatedNode* locatedNode = isSgLocatedNode(astNode);
     string fileNameOfStatementsToUnparse;
     if (locatedNode == NULL)
        {
       // printf ("WARNING: applying AST -> string for non expression/statement AST objects \n");
          fileNameOfStatementsToUnparse = "defaultFileNameInGlobalUnparseToString";
        }
       else
        {
          ROSE_ASSERT (locatedNode != NULL);

       // DQ (5/31/2005): Get the filename from a traversal back through the parents to the SgFile
       // fileNameOfStatementsToUnparse = locatedNode->getFileName();
       // fileNameOfStatementsToUnparse = rose::getFileNameByTraversalBackToFileNode(locatedNode);
          if (locatedNode->get_parent() == NULL)
             {
            // DQ (7/29/2005):
            // Allow this function to be called with disconnected AST fragments not connected to 
            // a previously generated AST.  This happens in Qing's interface where AST fragements 
            // are built and meant to be unparsed.  Only the parent of the root of the AST 
            // fragement is expected to be NULL.
               fileNameOfStatementsToUnparse = locatedNode->getFileName();
             }
            else
             {
               fileNameOfStatementsToUnparse = rose::getFileNameByTraversalBackToFileNode(locatedNode);
             }
          
        }
     ROSE_ASSERT (fileNameOfStatementsToUnparse.size() > 0);

     Unparser roseUnparser ( &outputString, fileNameOfStatementsToUnparse, roseOptions, lineNumber );

  // Information that is passed down through the tree (inherited attribute)
  // Use the input SgUnparse_Info object if it is available.
     SgUnparse_Info* inheritedAttributeInfoPointer = NULL;
     if (inputUnparseInfoPointer != NULL)
        {
       // printf ("Using the input inputUnparseInfoPointer object \n");

       // Use the user provided SgUnparse_Info object
          inheritedAttributeInfoPointer = inputUnparseInfoPointer;
        }
       else
        {
       // DEFINE DEFAULT BEHAVIOUR FOR THE CASE WHEN NO inputUnparseInfoPointer (== NULL) IS 
       // PASSED AS ARGUMENT TO THE FUNCTION
       // printf ("Building a new Unparse_Info object \n");

       // If no input parameter has been specified then allocate one
       // inheritedAttributeInfoPointer = new SgUnparse_Info (NO_UNPARSE_INFO);
          inheritedAttributeInfoPointer = new SgUnparse_Info();
          ROSE_ASSERT (inheritedAttributeInfoPointer != NULL);

       // MS: 09/30/2003: comments de-activated in unparsing
          ROSE_ASSERT (inheritedAttributeInfoPointer->SkipComments() == false);

//.........这里部分代码省略.........