1/* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23package jdk.vm.ci.code.site; 24 25import static jdk.vm.ci.meta.MetaUtil.identityHashCodeString; 26 27/** 28 * Represents a code position with associated additional information. 29 */ 30public abstract class Site { 31 32 /** 33 * The position (or offset) of this site with respect to the start of the target method. 34 */ 35 public final int pcOffset; 36 37 public Site(int pos) { 38 this.pcOffset = pos; 39 } 40 41 @Override 42 public final int hashCode() { 43 throw new UnsupportedOperationException("hashCode"); 44 } 45 46 @Override 47 public String toString() { 48 return identityHashCodeString(this); 49 } 50 51 @Override 52 public abstract boolean equals(Object obj); 53} 54