The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #include "nsISupportsImpl.h"

 nsresult NS_FASTCALL

 NS_TableDrivenQI(void* aThis, REFNSIID aIID, void **aInstancePtr,

                  const QITableEntry* entries)

 {

   do {

     if (aIID.Equals(*entries->iid)) {

       nsISupports* r =

         reinterpret_cast<nsISupports*>

                         (reinterpret_cast<char*>(aThis) + entries->offset);

       NS_ADDREF(r);

       *aInstancePtr = r;

       return NS_OK;

     }

     ++entries;

   } while (entries->iid);

   *aInstancePtr = nullptr;

   return NS_ERROR_NO_INTERFACE;

 }