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 */ 23 package jdk.vm.ci.code.site; 24 25 import java.util.Objects; 26 27 import jdk.vm.ci.meta.VMConstant; 28 29 /** 30 * Represents an embedded {@link VMConstant} in the code or data section that needs to be 31 * {@link DataPatch patched} by the VM (e.g. an embedded pointer to a Java object). 32 */ 33 public final class ConstantReference extends Reference { 34 35 private final VMConstant constant; 36 37 public ConstantReference(VMConstant constant) { 38 this.constant = constant; 39 } 40 41 public VMConstant getConstant() { 42 return constant; 43 } 44 45 @Override 46 public String toString() { 47 return constant.toString(); 48 } 49 50 @Override 51 public int hashCode() { 52 return constant.hashCode(); 53 } 54 55 @Override 56 public boolean equals(Object obj) { 57 if (this == obj) { 58 return true; 59 } 60 if (obj instanceof ConstantReference) { 61 ConstantReference that = (ConstantReference) obj; 62 return Objects.equals(this.constant, that.constant); 63 } 64 return false; 65 } 66 }