C++ SgScopeStatement::get_symbol_table方法代码示例

void
FixupAstSymbolTables::visit ( SgNode* node )
   {
  // DQ (6/27/2005): Output the local symbol table from each scope.
  // printf ("node = %s \n",node->sage_class_name());

     SgScopeStatement* scope = isSgScopeStatement(node);
     if (scope != NULL)
        {
#if 0
          printf ("AST Fixup: Fixup Symbol Table for %p = %s at: \n",scope,scope->class_name().c_str());
#endif
          SgSymbolTable* symbolTable = scope->get_symbol_table();
          if (symbolTable == NULL)
             {
#if 0
               printf ("AST Fixup: Fixup Symbol Table for %p = %s at: \n",scope,scope->class_name().c_str());
               scope->get_file_info()->display("Symbol Table Location");
#endif
               SgSymbolTable* tempSymbolTable = new SgSymbolTable();
               ROSE_ASSERT(tempSymbolTable != NULL);

            // name this table as compiler generated! The name is a static member used to store 
            // state for the next_symbol() functions. It is meaningless to set these.
            // tempSymbolTable->set_name("compiler-generated symbol table");

               scope->set_symbol_table(tempSymbolTable);

            // reset the symbolTable using the get_symbol_table() member function
               symbolTable = scope->get_symbol_table();
               ROSE_ASSERT(symbolTable != NULL);

            // DQ (2/16/2006): Set this parent directly (now tested)
               symbolTable->set_parent(scope);
               ROSE_ASSERT(symbolTable->get_parent() != NULL);
             }
          ROSE_ASSERT(symbolTable != NULL);

          if (symbolTable->get_parent() == NULL)
             {
               printf ("Warning: Fixing up symbolTable, calling symbolTable->set_parent() (parent not previously set) \n");
               symbolTable->set_parent(scope);
             }
          ROSE_ASSERT(symbolTable->get_parent() != NULL);

       // Make sure that the internal hash table used in the symbol table is also present!
          if (symbolTable->get_table() == NULL)
             {
            // DQ (6/27/2005): There are a lot of these built, perhaps more than we really need!
#if 0
               printf ("AST Fixup: Building internal Symbol Table hash table (rose_hash_multimap) for %p = %s at: \n",
                    scope,scope->sage_class_name());
               scope->get_file_info()->display("Symbol Table Location");
#endif
               rose_hash_multimap* internalHashTable = new rose_hash_multimap();
               ROSE_ASSERT(internalHashTable != NULL);
               symbolTable->set_table(internalHashTable);
             }
          ROSE_ASSERT(symbolTable->get_table() != NULL);

          SgSymbolTable::BaseHashType* internalTable = symbolTable->get_table();
          ROSE_ASSERT(internalTable != NULL);


       // DQ (6/23/2011): Note: Declarations that reference types that have not been seen yet may be placed into the 
       // wronge scope, then later when we see the correct scope we have a symbol in two or more symbol tables.  The 
       // code below detects and fixes this problem.

       // DQ (6/16/2011): List of symbols we need to remove from symbol tables where they are multibily represented.
          std::vector<SgSymbol*> listOfSymbolsToRemove;

       // DQ (6/12/2011): Fixup symbol table by removing symbols that are not associated with a declaration in the current scope.
          int idx = 0;
          SgSymbolTable::hash_iterator i = internalTable->begin();
          while (i != internalTable->end())
             {
            // DQ: removed SgName casting operator to char*
            // cout << "[" << idx << "] " << (*i).first.str();
               ROSE_ASSERT ( (*i).first.str() != NULL );
               ROSE_ASSERT ( isSgSymbol( (*i).second ) != NULL );

            // printf ("Symbol number: %d (pair.first (SgName) = %s) pair.second (SgSymbol) sage_class_name() = %s \n",
            //      idx,(*i).first.str(),(*i).second->sage_class_name());

               SgSymbol* symbol = isSgSymbol((*i).second);
               ROSE_ASSERT ( symbol != NULL );

            // We have to look at each type of symbol separately!  This is because there is no virtual function,
            // the reason for this is that each get_declaration() function returns a different type!
            // ROSE_ASSERT ( symbol->get_declaration() != NULL );
               switch(symbol->variantT())
                  {
                    case V_SgClassSymbol:
                       {
                         SgClassSymbol* classSymbol = isSgClassSymbol(symbol);
                         ROSE_ASSERT(classSymbol != NULL);
                         ROSE_ASSERT(classSymbol->get_declaration() != NULL);

                         SgDeclarationStatement* declarationToFindInScope = NULL;

//.........这里部分代码省略.........