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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/jvmci/HotSpotSignature.java @ 21531:01319414783b

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added extension point for post Option parsing actions and used it to remove another JVMCI to non-JVMCI dependency (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Sun, 24 May 2015 13:11:53 +0200
parents 07b088d61d5d
children
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1 /*
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2 * Copyright (c) 2011, 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 com.oracle.graal.hotspot.jvmci;
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24
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25 import java.util.*;
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26
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27 import com.oracle.graal.api.meta.*;
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28 import com.oracle.graal.compiler.common.*;
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29
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30 /**
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31 * Represents a method signature.
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32 */
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33 public class HotSpotSignature implements Signature {
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34
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35 private final List<String> parameters = new ArrayList<>();
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36 private final String returnType;
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37 private final String originalString;
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38 private ResolvedJavaType[] parameterTypes;
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39 private ResolvedJavaType returnTypeCache;
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40 private final HotSpotJVMCIRuntimeProvider runtime;
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41
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42 public HotSpotSignature(HotSpotJVMCIRuntimeProvider runtime, String signature) {
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43 this.runtime = runtime;
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44 assert signature.length() > 0;
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45 this.originalString = signature;
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46
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47 if (signature.charAt(0) == '(') {
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48 int cur = 1;
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49 while (cur < signature.length() && signature.charAt(cur) != ')') {
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50 int nextCur = parseSignature(signature, cur);
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51 parameters.add(signature.substring(cur, nextCur));
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52 cur = nextCur;
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53 }
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54
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55 cur++;
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56 int nextCur = parseSignature(signature, cur);
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57 returnType = signature.substring(cur, nextCur);
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58 assert nextCur == signature.length();
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59 } else {
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60 returnType = null;
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61 }
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62 }
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63
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64 public HotSpotSignature(HotSpotJVMCIRuntimeProvider runtime, ResolvedJavaType returnType, ResolvedJavaType... parameterTypes) {
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65 this.runtime = runtime;
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66 this.parameterTypes = parameterTypes.clone();
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67 this.returnTypeCache = returnType;
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68 this.returnType = returnType.getName();
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69 StringBuilder sb = new StringBuilder("(");
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70 for (JavaType type : parameterTypes) {
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71 parameters.add(type.getName());
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72 sb.append(type.getName());
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73 }
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74 sb.append(")").append(returnType.getName());
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75 this.originalString = sb.toString();
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76 assert new HotSpotSignature(runtime, originalString).equals(this);
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77 }
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78
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79 private static int parseSignature(String signature, int start) {
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80 int cur = start;
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81 char first;
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82 do {
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83 first = signature.charAt(cur++);
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84 } while (first == '[');
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85
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86 switch (first) {
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87 case 'L':
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88 while (signature.charAt(cur) != ';') {
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89 cur++;
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90 }
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91 cur++;
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92 break;
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93 case 'V':
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94 case 'I':
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95 case 'B':
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96 case 'C':
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97 case 'D':
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98 case 'F':
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99 case 'J':
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100 case 'S':
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101 case 'Z':
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102 break;
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103 default:
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104 throw new GraalInternalError("Invalid character at index " + cur + " in signature: " + signature);
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105 }
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106 return cur;
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107 }
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108
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109 @Override
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110 public int getParameterCount(boolean withReceiver) {
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111 return parameters.size() + (withReceiver ? 1 : 0);
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112 }
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113
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114 @Override
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115 public Kind getParameterKind(int index) {
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116 return Kind.fromTypeString(parameters.get(index));
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117 }
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118
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119 private static boolean checkValidCache(ResolvedJavaType type, ResolvedJavaType accessingClass) {
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120 assert accessingClass != null;
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121 if (type == null) {
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122 return false;
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123 } else if (type instanceof HotSpotResolvedObjectTypeImpl) {
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124 return ((HotSpotResolvedObjectTypeImpl) type).isDefinitelyResolvedWithRespectTo(accessingClass);
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125 }
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126 return true;
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127 }
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128
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129 private static JavaType getUnresolvedOrPrimitiveType(HotSpotJVMCIRuntimeProvider runtime, String name) {
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130 if (name.length() == 1) {
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131 Kind kind = Kind.fromPrimitiveOrVoidTypeChar(name.charAt(0));
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parents: 21411
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132 return runtime.getHostJVMCIBackend().getMetaAccess().lookupJavaType(kind.toJavaClass());
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133 }
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134 return new HotSpotUnresolvedJavaType(name, runtime);
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135 }
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136
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137 @Override
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 6403
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138 public JavaType getParameterType(int index, ResolvedJavaType accessingClass) {
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139 if (accessingClass == null) {
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140 // Caller doesn't care about resolution context so return an unresolved
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141 // or primitive type (primitive type resolution is context free)
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142 return getUnresolvedOrPrimitiveType(runtime, parameters.get(index));
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143 }
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144 if (parameterTypes == null) {
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145 parameterTypes = new ResolvedJavaType[parameters.size()];
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146 }
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147
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148 ResolvedJavaType type = parameterTypes[index];
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parents: 14792
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149 if (!checkValidCache(type, accessingClass)) {
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2452e881fad5 Do not eagerly resolve types in lookupType.
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parents: 18564
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150 JavaType result = runtime.lookupType(parameters.get(index), (HotSpotResolvedObjectType) accessingClass, false);
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parents: 18564
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151 if (result instanceof ResolvedJavaType) {
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152 type = (ResolvedJavaType) result;
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153 parameterTypes[index] = type;
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154 } else {
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155 return result;
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156 }
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157 }
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158 return type;
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159 }
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160
16483
3c3cd36a3836 moved signatureToMethodDescriptor(Signature sig) from MetaUtil to be a default method in Signature
Doug Simon <doug.simon@oracle.com>
parents: 15193
diff changeset
161 @Override
3c3cd36a3836 moved signatureToMethodDescriptor(Signature sig) from MetaUtil to be a default method in Signature
Doug Simon <doug.simon@oracle.com>
parents: 15193
diff changeset
162 public String toMethodDescriptor() {
3c3cd36a3836 moved signatureToMethodDescriptor(Signature sig) from MetaUtil to be a default method in Signature
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parents: 15193
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163 assert originalString.equals(Signature.super.toMethodDescriptor());
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164 return originalString;
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165 }
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166
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167 @Override
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 6403
diff changeset
168 public Kind getReturnKind() {
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a891c53a295b Renaming RiKind => Kind.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5534
diff changeset
169 return Kind.fromTypeString(returnType);
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170 }
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171
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172 @Override
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 6403
diff changeset
173 public JavaType getReturnType(ResolvedJavaType accessingClass) {
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parents: 16483
diff changeset
174 if (accessingClass == null) {
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parents: 16483
diff changeset
175 // Caller doesn't care about resolution context so return an unresolved
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parents: 16483
diff changeset
176 // or primitive type (primitive type resolution is context free)
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parents: 18374
diff changeset
177 return getUnresolvedOrPrimitiveType(runtime, returnType);
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parents: 16483
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178 }
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Roland Schatz <roland.schatz@oracle.com>
parents: 14792
diff changeset
179 if (!checkValidCache(returnTypeCache, accessingClass)) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 18564
diff changeset
180 JavaType result = runtime.lookupType(returnType, (HotSpotResolvedObjectType) accessingClass, false);
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parents: 18564
diff changeset
181 if (result instanceof ResolvedJavaType) {
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parents: 18564
diff changeset
182 returnTypeCache = (ResolvedJavaType) result;
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parents: 18564
diff changeset
183 } else {
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diff changeset
184 return result;
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185 }
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186 }
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187 return returnTypeCache;
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188 }
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189
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190 @Override
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191 public String toString() {
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192 return "HotSpotSignature<" + originalString + ">";
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193 }
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194
9657
4c162e218809 enabled creation of a HotSpotSignature from types (in addition to a string)
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parents: 9289
diff changeset
195 @Override
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parents: 9289
diff changeset
196 public boolean equals(Object obj) {
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Doug Simon <doug.simon@oracle.com>
parents: 9289
diff changeset
197 if (obj instanceof HotSpotSignature) {
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parents: 9289
diff changeset
198 HotSpotSignature other = (HotSpotSignature) obj;
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parents: 9289
diff changeset
199 if (other.originalString.equals(originalString)) {
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diff changeset
200 assert other.parameters.equals(parameters);
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parents: 9289
diff changeset
201 assert other.returnType.equals(returnType);
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parents: 9289
diff changeset
202 return true;
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parents: 9289
diff changeset
203 }
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Doug Simon <doug.simon@oracle.com>
parents: 9289
diff changeset
204 }
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Doug Simon <doug.simon@oracle.com>
parents: 9289
diff changeset
205 return false;
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parents: 9289
diff changeset
206 }
4c162e218809 enabled creation of a HotSpotSignature from types (in addition to a string)
Doug Simon <doug.simon@oracle.com>
parents: 9289
diff changeset
207
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Doug Simon <doug.simon@oracle.com>
parents: 9289
diff changeset
208 @Override
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Doug Simon <doug.simon@oracle.com>
parents: 9289
diff changeset
209 public int hashCode() {
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parents: 9289
diff changeset
210 return originalString.hashCode();
4c162e218809 enabled creation of a HotSpotSignature from types (in addition to a string)
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parents: 9289
diff changeset
211 }
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diff changeset
212 }