1 /* 2 * Copyright (c) 2017, 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.hotspot; 24 25 import jdk.vm.ci.meta.JavaConstant; 26 27 /** 28 * Represents a constant that was retrieved from a constant pool. Used to keep track of the constant 29 * pool slot for the constant. 30 */ 31 public final class HotSpotConstantPoolObject extends HotSpotObjectConstantImpl { 32 33 static JavaConstant forObject(HotSpotResolvedObjectType type, int cpi, Object object) { 34 return new HotSpotConstantPoolObject(type, cpi, object); 35 } 36 37 public static JavaConstant forObject(HotSpotResolvedObjectType type, int cpi, JavaConstant object) { 38 return forObject(type, cpi, ((HotSpotObjectConstantImpl) object).object()); 39 } 40 41 private final HotSpotResolvedObjectType type; 42 private final int cpi; 43 44 public HotSpotResolvedObjectType getCpType() { 45 return type; 46 } 47 48 public int getCpi() { 49 return cpi; 50 } 51 52 HotSpotConstantPoolObject(HotSpotResolvedObjectType type, int cpi, Object object) { 53 super(object, false); 54 this.type = type; 55 this.cpi = cpi; 56 } 57 58 @Override 59 public boolean equals(Object o) { 60 if (o instanceof HotSpotConstantPoolObject) { 61 if (super.equals(o)) { 62 HotSpotConstantPoolObject other = (HotSpotConstantPoolObject) o; 63 return type == other.type && cpi == other.cpi; 64 } 65 } 66 return false; 67 } 68 69 @Override 70 public String toValueString() { 71 return getCpType().getName() + getCpi(); 72 } 73 74 @Override 75 public String toString() { 76 return super.toString() + "@" + toValueString(); 77 } 78 79 }