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1 /*
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2 * Copyright 2002-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.jdi;
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26
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27 import com.sun.jdi.*;
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28 import sun.jvm.hotspot.oops.Symbol;
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29 import sun.jvm.hotspot.oops.LocalVariableTableElement;
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30 import java.util.List;
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31 import java.util.Iterator;
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32 import java.util.ArrayList;
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33 import java.util.Comparator;
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34 import java.lang.ref.SoftReference;
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35 import java.util.Collections;
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36
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37 public abstract class MethodImpl extends TypeComponentImpl implements Method {
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38 private JNITypeParser signatureParser;
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39 protected sun.jvm.hotspot.oops.Method saMethod;
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40
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41 abstract int argSlotCount() throws AbsentInformationException;
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42 abstract List allLineLocations(SDE.Stratum stratum,
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43 String sourceName)
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44 throws AbsentInformationException;
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45 abstract List locationsOfLine(SDE.Stratum stratum,
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46 String sourceName,
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47 int lineNumber)
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48 throws AbsentInformationException;
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49
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50 static MethodImpl createMethodImpl(VirtualMachine vm, ReferenceTypeImpl declaringType,
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51 sun.jvm.hotspot.oops.Method saMethod) {
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52 // Someday might have to add concrete and non-concrete subclasses.
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53 if (saMethod.isNative() || saMethod.isAbstract()) {
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54 return new NonConcreteMethodImpl(vm, declaringType, saMethod);
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55 } else {
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56 return new ConcreteMethodImpl(vm, declaringType, saMethod);
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57 }
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58 }
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59
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60 MethodImpl(VirtualMachine vm, ReferenceTypeImpl declaringType,
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61 sun.jvm.hotspot.oops.Method saMethod ) {
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62 super(vm, declaringType);
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63 this.saMethod = saMethod;
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64 getParser();
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65 }
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66
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67 private JNITypeParser getParser() {
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68 if (signatureParser == null) {
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69 Symbol sig1 = saMethod.getSignature();
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70 signature = sig1.asString();
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71 signatureParser = new JNITypeParser(signature);
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72 }
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73 return signatureParser;
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74 }
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75
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76 // Object ref() {
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77 sun.jvm.hotspot.oops.Method ref() {
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78 return saMethod;
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79 }
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80
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81 public String genericSignature() {
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82 Symbol genSig = saMethod.getGenericSignature();
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83 return (genSig != null)? genSig.asString() : null;
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84 }
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85
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86 public String returnTypeName() {
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87 return getParser().typeName();
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88 }
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89
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90 public Type returnType() throws ClassNotLoadedException {
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91 return findType(getParser().signature());
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92 }
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93
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94 private Type findType(String signature) throws ClassNotLoadedException {
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95 ReferenceTypeImpl enclosing = (ReferenceTypeImpl)declaringType();
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96 return enclosing.findType(signature);
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97 }
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98
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99 public List argumentTypeNames() {
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100 return getParser().argumentTypeNames();
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101 }
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102
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103 List argumentSignatures() {
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104 return getParser().argumentSignatures();
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105 }
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106
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107 Type argumentType(int index) throws ClassNotLoadedException {
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108 ReferenceTypeImpl enclosing = (ReferenceTypeImpl)declaringType();
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109 String signature = (String)argumentSignatures().get(index);
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110 return enclosing.findType(signature);
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111 }
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112
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113 public List argumentTypes() throws ClassNotLoadedException {
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114 int size = argumentSignatures().size();
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115 ArrayList types = new ArrayList(size);
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116 for (int i = 0; i < size; i++) {
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117 Type type = argumentType(i);
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118 types.add(type);
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119 }
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120 return types;
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121 }
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122
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123 public boolean isAbstract() {
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124 return saMethod.isAbstract();
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125 }
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126
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127 public boolean isBridge() {
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128 return saMethod.isBridge();
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129 }
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130
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131 public boolean isSynchronized() {
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132 return saMethod.isSynchronized();
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133 }
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134
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135 public boolean isNative() {
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136 return saMethod.isNative();
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137 }
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138
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139 public boolean isVarArgs() {
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140 return saMethod.isVarArgs();
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141 }
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142
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143 public boolean isConstructor() {
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144 return saMethod.isConstructor();
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145 }
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146
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147 public boolean isStaticInitializer() {
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148 return saMethod.isStaticInitializer();
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149 }
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150
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151 public boolean isObsolete() {
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152 return saMethod.isObsolete();
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153 }
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154
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155 public final List allLineLocations()
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156 throws AbsentInformationException {
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157 return allLineLocations(vm.getDefaultStratum(), null);
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158 }
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159
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160 public List allLineLocations(String stratumID,
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161 String sourceName)
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162 throws AbsentInformationException {
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163 return allLineLocations(declaringType.stratum(stratumID),
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164 sourceName);
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165 }
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166
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167 public final List locationsOfLine(int lineNumber)
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168 throws AbsentInformationException {
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169 return locationsOfLine(vm.getDefaultStratum(),
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170 null, lineNumber);
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171 }
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172
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173 public List locationsOfLine(String stratumID,
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174 String sourceName,
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175 int lineNumber)
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176 throws AbsentInformationException {
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177 return locationsOfLine(declaringType.stratum(stratumID),
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178 sourceName, lineNumber);
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179 }
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180
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181 LineInfo codeIndexToLineInfo(SDE.Stratum stratum,
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182 long codeIndex) {
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183 if (stratum.isJava()) {
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184 return new BaseLineInfo(-1, declaringType);
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185 } else {
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186 return new StratumLineInfo(stratum.id(), -1,
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187 null, null);
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188 }
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189 }
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190
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191 public boolean equals(Object obj) {
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192 if ((obj != null) && (obj instanceof MethodImpl)) {
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193 MethodImpl other = (MethodImpl)obj;
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194 return (declaringType().equals(other.declaringType())) &&
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195 (ref().equals(other.ref())) &&
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196 super.equals(obj);
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197 } else {
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198 return false;
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199 }
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200 }
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201
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202 // From interface Comparable
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203 public int compareTo(Object object) {
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204 Method method = (Method)object;
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205 ReferenceTypeImpl declaringType = (ReferenceTypeImpl)declaringType();
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206 int rc = declaringType.compareTo(method.declaringType());
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207 if (rc == 0) {
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208 rc = declaringType.indexOf(this) -
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209 declaringType.indexOf(method);
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210 }
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211 return rc;
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212 }
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213
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214 // from interface Mirror
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215 public String toString() {
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216 StringBuffer sb = new StringBuffer();
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217 sb.append(declaringType().name());
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218 sb.append(".");
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219 sb.append(name());
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220 sb.append("(");
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221 boolean first = true;
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222 for (Iterator it = argumentTypeNames().iterator(); it.hasNext();) {
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223 if (!first) {
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224 sb.append(", ");
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225 }
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226 sb.append((String)it.next());
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227 first = false;
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228 }
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229 sb.append(")");
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230 return sb.toString();
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231 }
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232
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233 public String name() {
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234 Symbol myName = saMethod.getName();
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235 return myName.asString();
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236 }
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237
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238 public int modifiers() {
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239 return saMethod.getAccessFlagsObj().getStandardFlags();
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240 }
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241
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242 public boolean isPackagePrivate() {
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243 return saMethod.isPackagePrivate();
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244 }
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245
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246 public boolean isPrivate() {
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247 return saMethod.isPrivate();
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248 }
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249
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250 public boolean isProtected() {
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251 return saMethod.isProtected();
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252 }
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253
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254 public boolean isPublic() {
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255 return saMethod.isPublic();
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256 }
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257
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258 public boolean isStatic() {
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259 return saMethod.isStatic();
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260 }
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261
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262 public boolean isSynthetic() {
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263 return saMethod.isSynthetic();
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264 }
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265
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266 public boolean isFinal() {
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267 return saMethod.isFinal();
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268 }
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269
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270 public int hashCode() {
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271 return saMethod.hashCode();
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272 }
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273 }
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