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