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annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotObjectConstantImpl.java @ 23322:f8178417d018

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Expose SharedRuntime::throw_and_post_jvmti_exception to JVMCI compilers.
author Roland Schatz <roland.schatz@oracle.com>
date Mon, 14 Mar 2016 11:58:48 +0100
parents 1bbd4a7c274b
children f102ee538647
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package jdk.vm.ci.hotspot;
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24
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25 import static jdk.vm.ci.hotspot.HotSpotResolvedObjectTypeImpl.fromObjectClass;
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26
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27 import java.lang.invoke.CallSite;
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28 import java.lang.invoke.ConstantCallSite;
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29 import java.lang.invoke.MethodHandle;
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30
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31 import jdk.vm.ci.inittimer.SuppressFBWarnings;
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32 import jdk.vm.ci.meta.Assumptions;
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33 import jdk.vm.ci.meta.Constant;
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34 import jdk.vm.ci.meta.JavaConstant;
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35 import jdk.vm.ci.meta.JavaKind;
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36 import jdk.vm.ci.meta.ResolvedJavaType;
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37
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38 /**
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39 * Represents a constant non-{@code null} object reference, within the compiler and across the
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40 * compiler/runtime interface.
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41 */
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42 final class HotSpotObjectConstantImpl implements HotSpotObjectConstant, HotSpotProxified {
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43
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44 static JavaConstant forObject(Object object) {
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45 return forObject(object, false);
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46 }
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47
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48 static JavaConstant forObject(Object object, boolean compressed) {
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49 if (object == null) {
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50 return compressed ? HotSpotCompressedNullConstant.COMPRESSED_NULL : JavaConstant.NULL_POINTER;
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51 } else {
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52 return new HotSpotObjectConstantImpl(object, compressed);
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53 }
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54 }
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55
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56 static JavaConstant forStableArray(Object object, int stableDimension, boolean isDefaultStable) {
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57 if (object == null) {
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58 return JavaConstant.NULL_POINTER;
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59 } else {
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60 assert object.getClass().isArray();
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61 return new HotSpotObjectConstantImpl(object, false, stableDimension, isDefaultStable);
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62 }
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63 }
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64
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65 public static JavaConstant forBoxedValue(JavaKind kind, Object value) {
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66 if (kind == JavaKind.Object) {
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67 return HotSpotObjectConstantImpl.forObject(value);
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68 } else {
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69 return JavaConstant.forBoxedPrimitive(value);
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70 }
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71 }
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72
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73 static Object asBoxedValue(Constant constant) {
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74 if (JavaConstant.isNull(constant)) {
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75 return null;
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76 } else if (constant instanceof HotSpotObjectConstantImpl) {
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77 return ((HotSpotObjectConstantImpl) constant).object;
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78 } else {
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79 return ((JavaConstant) constant).asBoxedPrimitive();
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80 }
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81 }
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82
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83 private final Object object;
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84 private final boolean compressed;
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85 private final byte stableDimension;
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86 private final boolean isDefaultStable;
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87
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88 private HotSpotObjectConstantImpl(Object object, boolean compressed, int stableDimension, boolean isDefaultStable) {
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89 this.object = object;
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90 this.compressed = compressed;
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91 this.stableDimension = (byte) stableDimension;
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92 this.isDefaultStable = isDefaultStable;
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93 assert object != null;
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94 assert stableDimension == 0 || (object != null && object.getClass().isArray());
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95 assert stableDimension >= 0 && stableDimension <= 255;
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96 assert !isDefaultStable || stableDimension > 0;
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97 }
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98
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99 private HotSpotObjectConstantImpl(Object object, boolean compressed) {
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100 this(object, compressed, 0, false);
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101 }
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102
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103 @Override
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104 public JavaKind getJavaKind() {
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105 return JavaKind.Object;
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106 }
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107
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108 /**
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109 * Package-private accessor for the object represented by this constant.
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110 */
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111 Object object() {
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112 return object;
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113 }
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114
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115 public boolean isCompressed() {
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116 return compressed;
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117 }
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118
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119 public JavaConstant compress() {
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120 assert !compressed;
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121 return new HotSpotObjectConstantImpl(object, true, stableDimension, isDefaultStable);
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122 }
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123
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124 public JavaConstant uncompress() {
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125 assert compressed;
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126 return new HotSpotObjectConstantImpl(object, false, stableDimension, isDefaultStable);
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127 }
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128
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129 public HotSpotResolvedObjectType getType() {
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130 return fromObjectClass(object.getClass());
0ec7e37451c7 added HotSpotObjectConstant.getType() and restricted access to some static methods in HotSpotObjectConstantImpl
Doug Simon <doug.simon@oracle.com>
parents: 18533
diff changeset
131 }
0ec7e37451c7 added HotSpotObjectConstant.getType() and restricted access to some static methods in HotSpotObjectConstantImpl
Doug Simon <doug.simon@oracle.com>
parents: 18533
diff changeset
132
18280
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
133 public JavaConstant getClassLoader() {
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
134 if (object instanceof Class) {
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
135 /*
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
136 * This is an intrinsic for getClassLoader0, which occurs after any security checks. We
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
137 * can't call that directly so just call getClassLoader.
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
138 */
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
139 return HotSpotObjectConstantImpl.forObject(((Class<?>) object).getClassLoader());
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
140 }
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
141 return null;
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
142 }
c7e0405a35d8 added HotSpotObjectConstant.getClassLoader()
Doug Simon <doug.simon@oracle.com>
parents: 18262
diff changeset
143
18282
ecf3de366ecc added HotSpotObjectConstant.getIdentityHashCode()
Doug Simon <doug.simon@oracle.com>
parents: 18280
diff changeset
144 public int getIdentityHashCode() {
ecf3de366ecc added HotSpotObjectConstant.getIdentityHashCode()
Doug Simon <doug.simon@oracle.com>
parents: 18280
diff changeset
145 return System.identityHashCode(object);
ecf3de366ecc added HotSpotObjectConstant.getIdentityHashCode()
Doug Simon <doug.simon@oracle.com>
parents: 18280
diff changeset
146 }
ecf3de366ecc added HotSpotObjectConstant.getIdentityHashCode()
Doug Simon <doug.simon@oracle.com>
parents: 18280
diff changeset
147
18284
29ba2a7cdfcb added HotSpotObjectConstant.getComponentType()
Doug Simon <doug.simon@oracle.com>
parents: 18283
diff changeset
148 public JavaConstant getComponentType() {
29ba2a7cdfcb added HotSpotObjectConstant.getComponentType()
Doug Simon <doug.simon@oracle.com>
parents: 18283
diff changeset
149 if (object instanceof Class) {
29ba2a7cdfcb added HotSpotObjectConstant.getComponentType()
Doug Simon <doug.simon@oracle.com>
parents: 18283
diff changeset
150 return HotSpotObjectConstantImpl.forObject(((Class<?>) object).getComponentType());
29ba2a7cdfcb added HotSpotObjectConstant.getComponentType()
Doug Simon <doug.simon@oracle.com>
parents: 18283
diff changeset
151 }
29ba2a7cdfcb added HotSpotObjectConstant.getComponentType()
Doug Simon <doug.simon@oracle.com>
parents: 18283
diff changeset
152 return null;
29ba2a7cdfcb added HotSpotObjectConstant.getComponentType()
Doug Simon <doug.simon@oracle.com>
parents: 18283
diff changeset
153 }
29ba2a7cdfcb added HotSpotObjectConstant.getComponentType()
Doug Simon <doug.simon@oracle.com>
parents: 18283
diff changeset
154
18285
420161aee840 added HotSpotObjectConstant.getSuperclass()
Doug Simon <doug.simon@oracle.com>
parents: 18284
diff changeset
155 public JavaConstant getSuperclass() {
420161aee840 added HotSpotObjectConstant.getSuperclass()
Doug Simon <doug.simon@oracle.com>
parents: 18284
diff changeset
156 if (object instanceof Class) {
420161aee840 added HotSpotObjectConstant.getSuperclass()
Doug Simon <doug.simon@oracle.com>
parents: 18284
diff changeset
157 return HotSpotObjectConstantImpl.forObject(((Class<?>) object).getSuperclass());
420161aee840 added HotSpotObjectConstant.getSuperclass()
Doug Simon <doug.simon@oracle.com>
parents: 18284
diff changeset
158 }
420161aee840 added HotSpotObjectConstant.getSuperclass()
Doug Simon <doug.simon@oracle.com>
parents: 18284
diff changeset
159 return null;
420161aee840 added HotSpotObjectConstant.getSuperclass()
Doug Simon <doug.simon@oracle.com>
parents: 18284
diff changeset
160 }
420161aee840 added HotSpotObjectConstant.getSuperclass()
Doug Simon <doug.simon@oracle.com>
parents: 18284
diff changeset
161
18286
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
162 public JavaConstant getCallSiteTarget(Assumptions assumptions) {
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
163 if (object instanceof CallSite) {
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
164 CallSite callSite = (CallSite) object;
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
165 MethodHandle target = callSite.getTarget();
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
166 if (!(callSite instanceof ConstantCallSite)) {
19306
a0a760b0fb5f pulled method evolution dependencies out of Assumptions and directly into StructuredGraph
Doug Simon <doug.simon@oracle.com>
parents: 18867
diff changeset
167 if (assumptions == null) {
18286
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
168 return null;
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
169 }
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
170 assumptions.record(new Assumptions.CallSiteTargetValue(callSite, target));
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
171 }
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
172 return HotSpotObjectConstantImpl.forObject(target);
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
173 }
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
174 return null;
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
175 }
ffcbc50063a3 added HotSpotObjectConstant.getCallSiteTarget()
Doug Simon <doug.simon@oracle.com>
parents: 18285
diff changeset
176
18288
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
177 @SuppressFBWarnings(value = "ES_COMPARING_STRINGS_WITH_EQ", justification = "reference equality is what we want")
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
178 public boolean isInternedString() {
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
179 if (object instanceof String) {
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
180 String s = (String) object;
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
181 return s.intern() == s;
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
182 }
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
183 return false;
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
184 }
feef9ed5fc56 added HotSpotObjectConstant.isInternedString()
Doug Simon <doug.simon@oracle.com>
parents: 18287
diff changeset
185
18533
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
186 public <T> T asObject(Class<T> type) {
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
187 if (type.isInstance(object)) {
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
188 return type.cast(object);
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
189 }
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
190 return null;
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
191 }
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
192
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
193 public Object asObject(ResolvedJavaType type) {
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
194 if (type.isInstance(this)) {
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
195 return object;
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
196 }
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
197 return null;
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
198 }
25a21e1794ec modified SnippetReflectionProvider to support both VM-side and compiler-side constants in a compilation replay context
Doug Simon <doug.simon@oracle.com>
parents: 18530
diff changeset
199
15018
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
200 @Override
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
201 public boolean isNull() {
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
202 return false;
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
203 }
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
204
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
205 @Override
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
206 public boolean isDefaultForKind() {
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
207 return false;
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
208 }
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
209
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
210 @Override
18186
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
211 public Object asBoxedPrimitive() {
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
212 throw new IllegalArgumentException();
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
213 }
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
214
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
215 @Override
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
216 public int asInt() {
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
217 throw new IllegalArgumentException();
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
218 }
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
219
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
220 @Override
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
221 public boolean asBoolean() {
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
222 throw new IllegalArgumentException();
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
223 }
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
224
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
225 @Override
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
226 public long asLong() {
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
227 throw new IllegalArgumentException();
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
228 }
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
229
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
230 @Override
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
231 public float asFloat() {
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
232 throw new IllegalArgumentException();
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
233 }
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
234
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
235 @Override
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
236 public double asDouble() {
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
237 throw new IllegalArgumentException();
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
238 }
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
239
ef357effbda7 Backout of changeset 9a804ec7f707 (converted Constant and Value to be interfaces).
Roland Schatz <roland.schatz@oracle.com>
parents: 18176
diff changeset
240 @Override
15018
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
241 public int hashCode() {
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
242 return System.identityHashCode(object);
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
243 }
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
244
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
245 @Override
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
246 public boolean equals(Object o) {
18471
7b60f8334af0 Compare compressed flag in HotSpotObjectConstantImpl#equals and reference equality in HotSpotConstantReflectionProvider#constantEquals
Andreas Woess <andreas.woess@jku.at>
parents: 18359
diff changeset
247 if (o == this) {
7b60f8334af0 Compare compressed flag in HotSpotObjectConstantImpl#equals and reference equality in HotSpotConstantReflectionProvider#constantEquals
Andreas Woess <andreas.woess@jku.at>
parents: 18359
diff changeset
248 return true;
7b60f8334af0 Compare compressed flag in HotSpotObjectConstantImpl#equals and reference equality in HotSpotConstantReflectionProvider#constantEquals
Andreas Woess <andreas.woess@jku.at>
parents: 18359
diff changeset
249 } else if (o instanceof HotSpotObjectConstantImpl) {
7b60f8334af0 Compare compressed flag in HotSpotObjectConstantImpl#equals and reference equality in HotSpotConstantReflectionProvider#constantEquals
Andreas Woess <andreas.woess@jku.at>
parents: 18359
diff changeset
250 HotSpotObjectConstantImpl other = (HotSpotObjectConstantImpl) o;
22489
24b4e5e1431c Remove JavaConstant from Value hierarchy.
Roland Schatz <roland.schatz@oracle.com>
parents: 22398
diff changeset
251 return object == other.object && compressed == other.compressed && stableDimension == other.stableDimension && isDefaultStable == other.isDefaultStable;
18471
7b60f8334af0 Compare compressed flag in HotSpotObjectConstantImpl#equals and reference equality in HotSpotConstantReflectionProvider#constantEquals
Andreas Woess <andreas.woess@jku.at>
parents: 18359
diff changeset
252 }
7b60f8334af0 Compare compressed flag in HotSpotObjectConstantImpl#equals and reference equality in HotSpotConstantReflectionProvider#constantEquals
Andreas Woess <andreas.woess@jku.at>
parents: 18359
diff changeset
253 return false;
15018
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
254 }
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
255
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
256 @Override
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
257 public String toValueString() {
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
258 if (object instanceof String) {
22093
eb025d2d7ce2 Distinguish "null" from null in toValueString
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 22087
diff changeset
259 return "\"" + (String) object + "\"";
15018
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
260 } else {
22536
dc1aeef79e7e Refactoring: Rename Kind to JavaKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 22489
diff changeset
261 return JavaKind.Object.format(object);
15018
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
262 }
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
263 }
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
264
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
diff changeset
265 @Override
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
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266 public String toString() {
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267 return (compressed ? "NarrowOop" : getJavaKind().getJavaName()) + "[" + JavaKind.Object.format(object) + "]";
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268 }
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269
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270 /**
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271 * Number of stable dimensions if this constant is a stable array.
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272 */
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273 public int getStableDimension() {
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274 return stableDimension & 0xff;
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275 }
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276
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277 /**
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278 * Returns {@code true} if this is a stable array constant and its elements should be considered
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279 * as stable regardless of whether they are default values.
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280 */
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281 public boolean isDefaultStable() {
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282 return isDefaultStable;
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283 }
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284 }