| 1 | /* ***** BEGIN LICENSE BLOCK *****
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| 2 | * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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| 3 | *
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| 4 | * The contents of this file are subject to the Mozilla Public License Version
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| 5 | * 1.1 (the "License"); you may not use this file except in compliance with
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| 6 | * the License. You may obtain a copy of the License at
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| 7 | * http://www.mozilla.org/MPL/
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| 8 | *
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| 9 | * Software distributed under the License is distributed on an "AS IS" basis,
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| 10 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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| 11 | * for the specific language governing rights and limitations under the
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| 12 | * License.
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| 13 | *
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| 14 | * The Original Code is Mozilla XPCOM.
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| 15 | *
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| 16 | * The Initial Developer of the Original Code is
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| 17 | * Benjamin Smedberg <benjamin@smedbergs.us>.
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| 18 | *
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| 19 | * Portions created by the Initial Developer are Copyright (C) 2005
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| 20 | * the Mozilla Foundation <http://www.mozilla.org/>. All Rights Reserved.
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| 21 | *
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| 22 | * Contributor(s):
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| 23 | *
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| 24 | * Alternatively, the contents of this file may be used under the terms of
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| 25 | * either the GNU General Public License Version 2 or later (the "GPL"), or
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| 26 | * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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| 27 | * in which case the provisions of the GPL or the LGPL are applicable instead
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| 28 | * of those above. If you wish to allow use of your version of this file only
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| 29 | * under the terms of either the GPL or the LGPL, and not to allow others to
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| 30 | * use your version of this file under the terms of the MPL, indicate your
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| 31 | * decision by deleting the provisions above and replace them with the notice
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| 32 | * and other provisions required by the GPL or the LGPL. If you do not delete
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| 33 | * the provisions above, a recipient may use your version of this file under
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| 34 | * the terms of any one of the MPL, the GPL or the LGPL.
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| 35 | *
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| 36 | * ***** END LICENSE BLOCK ***** */
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| 37 |
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| 38 | #include "nsISupports.idl"
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| 39 |
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| 40 | /**
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| 41 | * Represents an object that can be stored in a hashtable.
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| 42 | */
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| 43 |
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| 44 | [scriptable, uuid(17e595fa-b57a-4933-bd0f-b1812e8ab188)]
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| 45 | interface nsIHashable : nsISupports
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| 46 | {
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| 47 | /**
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| 48 | * Is this object the equivalent of the other object?
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| 49 | */
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| 50 | boolean equals(in nsIHashable aOther);
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| 51 |
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| 52 | /**
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| 53 | * A generated hashcode for this object. Objects that are equivalent
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| 54 | * must have the same hash code. Getting this property should never
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| 55 | * throw an exception!
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| 56 | */
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| 57 | readonly attribute unsigned long hashCode;
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| 58 | };
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