Method assignFieldsFrom

Engine/source/console/simObject.cpp:841–900

//-----------------------------------------------------------------------------

void SimObject::assignFieldsFrom(SimObject *parent)
{
   // Only allow field assigns from objects of the same class or
   // a superclass.
   
   if( getClassRep()->isClass( parent->getClassRep() ) )
   {
      const AbstractClassRep::FieldList &list = parent->getFieldList();

      // copy out all the fields:
      for(U32 i = 0; i < list.size(); i++)
      {
         const AbstractClassRep::Field* f = &list[i];

         // Skip the special field types.
         if ( f->type >= AbstractClassRep::ARCFirstCustomField )
            continue;
            
         // Skip certain fields that we don't want to see copied so we don't
         // get error messages from their setters.
            
         static StringTableEntry sName = StringTable->insert( "name" );
         static StringTableEntry sPersistentId = StringTable->insert( "persistentId" );
         
         if( f->pFieldname == sName || f->pFieldname == sPersistentId )
            continue;

         S32 lastField = f->elementCount - 1;
         for(S32 j = 0; j <= lastField; j++)
         {
            const char* fieldVal = (*f->getDataFn)( parent,  Con::getData(f->type, (void *) (((const char *)parent) + f->offset), j, f->table, f->flag));

            // Don't assign the field is the pointer is null or if
            // the field is not empty and writing it was disallowed.
            if ( !fieldVal || ( fieldVal[0] && !writeField( f->pFieldname, fieldVal ) ) )
               continue;

            // code copied from SimObject::setDataField().
            // TODO: paxorr: abstract this into a better setData / getData that considers prot fields.
            FrameTemp<char> buffer(2048);
            FrameTemp<char> bufferSecure(2048); // This buffer is used to make a copy of the data
            ConsoleBaseType *cbt = ConsoleBaseType::getType( f->type );
            const char* szBuffer = cbt->prepData( fieldVal, buffer, 2048 );
            dMemset( bufferSecure, 0, 2048 );
            dMemcpy( bufferSecure, szBuffer, dStrlen( szBuffer ) );

            if((*f->setDataFn)( this, NULL, bufferSecure ) )
               Con::setData(f->type, (void *) (((const char *)this) + f->offset), j, 1, &fieldVal, f->table);
         }
      }
   }
   else
   {
      Con::errorf( "SimObject::assignFieldsFrom() - cannot assigned fields from object of type '%s' to object of type '%s'",
         parent->getClassName(), getClassName()
      );
   }