1 /* 2 * Copyright (c) 2017, 2019, 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.JavaKind; 27 28 /** 29 * Represents a constant that was retrieved from a constant pool. Used to keep track of the constant 30 * pool slot for the constant. 31 */ 32 public final class HotSpotConstantPoolObject implements JavaConstant { 33 34 public static JavaConstant forObject(HotSpotResolvedObjectType type, int cpi, JavaConstant object) { 35 return new HotSpotConstantPoolObject(type, cpi, object); 36 } 37 38 private final JavaConstant constant; 39 private final HotSpotResolvedObjectType type; 40 private final int cpi; 41 42 public HotSpotResolvedObjectType getCpType() { 43 return type; 44 } 45 46 public int getCpi() { 47 return cpi; 48 } 49 50 HotSpotConstantPoolObject(HotSpotResolvedObjectType type, int cpi, JavaConstant constant) { 51 this.type = type; 52 this.cpi = cpi; 53 this.constant = constant; 54 } 55 56 @Override 57 public boolean equals(Object o) { 58 if (o instanceof HotSpotConstantPoolObject) { 59 HotSpotConstantPoolObject other = (HotSpotConstantPoolObject) o; 60 return type.equals(other.type) && cpi == other.cpi && constant.equals(other.constant); 61 } 62 return false; 63 } 64 65 @Override 66 public int hashCode() { 67 return constant.hashCode() + cpi + type.hashCode(); 68 } 69 70 @Override 71 public JavaKind getJavaKind() { 72 return constant.getJavaKind(); 73 } 74 75 @Override 76 public boolean isNull() { 77 return constant.isNull(); 78 } 79 80 @Override 81 public boolean isDefaultForKind() { 82 return constant.isDefaultForKind(); 83 } 84 85 @Override 86 public Object asBoxedPrimitive() { 87 return constant.asBoxedPrimitive(); 88 } 89 90 @Override 91 public int asInt() { 92 return constant.asInt(); 93 } 94 95 @Override 96 public boolean asBoolean() { 97 return constant.asBoolean(); 98 } 99 100 @Override 101 public long asLong() { 102 return constant.asLong(); 103 } 104 105 @Override 106 public float asFloat() { 107 return constant.asFloat(); 108 } 109 110 @Override 111 public double asDouble() { 112 return 0; 113 } 114 115 @Override 116 public String toValueString() { 117 return getCpType().getName() + getCpi(); 118 } 119 120 @Override 121 public String toString() { 122 return super.toString() + "@" + toValueString(); 123 } 124 125 }