michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsISupports.idl"
michael@0: 
michael@0: /**
michael@0:  * Represents an object that can be stored in a hashtable.
michael@0:  */
michael@0: [scriptable, uuid(17e595fa-b57a-4933-bd0f-b1812e8ab188)]
michael@0: interface nsIHashable : nsISupports
michael@0: {
michael@0:   /**
michael@0:    * Is this object the equivalent of the other object?
michael@0:    */
michael@0:   boolean equals(in nsIHashable aOther);
michael@0: 
michael@0:   /**
michael@0:    * A generated hashcode for this object. Objects that are equivalent
michael@0:    * must have the same hash code. Getting this property should never
michael@0:    * throw an exception!
michael@0:    */
michael@0:   readonly attribute unsigned long hashCode;
michael@0: };