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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "nsISupports.idl"

/**
 * A class factory allows the creation of nsISupports derived
 * components without specifying a concrete base class.
 */

[scriptable, object, uuid(1bb40a56-9223-41e6-97d4-da97bdeb6a4d)]
interface nsIFactory :  nsISupports {
   /**
    * Creates an instance of a component.
    *
    * @param iid    The IID of the interface being requested in
    *               the component which is being currently created.
    * @param result [out] Pointer to the newly created instance, if successful.
    * @throws NS_NOINTERFACE - Interface not accessible.
    *         NS_ERROR* - Method failure.
    */
    void createInstance(in nsIIDRef iid,
                        [retval, iid_is(iid)] out nsQIResult result);

};