001/*
002 *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003 *
004 *  This file is licensed to You under the Eclipse Public License (EPL);
005 *  You may not use this file except in compliance with the License. You
006 *  may obtain a copy of the License at
007 *
008 *      http://www.opensource.org/licenses/eclipse-1.0.php
009 *
010 *  See the COPYRIGHT.txt file distributed with this work for information
011 *  regarding copyright ownership.
012 */
013package org.jikesrvm.compilers.opt.util;
014
015/**
016 * An object that implements a bijection between whole numbers and
017 * objects.
018 */
019public interface BitSetMapping {
020
021  Object getMappedObject(int n);
022
023  int getMappedIndex(Object o);
024
025  int getMappingSize();
026}