xpcom/base/nsIMutable.idl

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "nsISupports.idl"
   7
   8 /**
   9  * nsIMutable defines an interface to be implemented by objects which
  10  * can be made immutable.
  11  */
  12 [scriptable, uuid(321578d0-03c1-4d95-8821-021ac612d18d)]
  13 interface nsIMutable : nsISupports
  14 {
  15     /**
  16      * Control whether or not this object can be modified.  If the flag is
  17      * false, no modification is allowed.  Once the flag has been set to false,
  18      * it cannot be reset back to true -- attempts to do so throw
  19      * NS_ERROR_INVALID_ARG.
  20      */
  21     attribute boolean mutable;
  22 };