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)] 13interface 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}; 23