Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/node/SpecializationMethodParser.java @ 7502:6343a09b2ec1
Codegen operation generation is inferred from the node type hierarchy.
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 18 Jan 2013 13:28:12 +0100 |
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children | 5e3d1a68664e |
rev | line source |
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Codegen operation generation is inferred from the node type hierarchy.
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1 /* |
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2 * Copyright (c) 2012, 2012, 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.truffle.codegen.processor.node; |
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24 |
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25 import java.lang.annotation.*; |
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26 import java.util.*; |
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27 |
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28 import javax.lang.model.element.*; |
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29 import javax.lang.model.type.*; |
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30 |
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31 import com.oracle.truffle.api.codegen.*; |
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32 import com.oracle.truffle.codegen.processor.*; |
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33 import com.oracle.truffle.codegen.processor.template.*; |
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34 import com.oracle.truffle.codegen.processor.typesystem.*; |
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35 |
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36 |
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37 public class SpecializationMethodParser extends MethodParser<SpecializationData> { |
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38 |
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39 private final MethodSpec specification; |
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40 |
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41 public SpecializationMethodParser(ProcessorContext context, NodeData operation) { |
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42 super(context, operation); |
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43 this.specification = createDefaultMethodSpec(null); |
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44 } |
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45 |
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46 @Override |
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47 public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) { |
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48 return specification; |
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49 } |
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50 |
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51 public MethodSpec getSpecification() { |
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52 return specification; |
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53 } |
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54 |
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55 @Override |
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56 public SpecializationData create(TemplateMethod method) { |
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57 return parseSpecialization(method); |
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58 } |
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59 |
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60 @Override |
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61 public Class< ? extends Annotation> getAnnotationType() { |
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62 return Specialization.class; |
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63 } |
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64 |
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65 private SpecializationData parseSpecialization(TemplateMethod method) { |
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66 int order = Utils.getAnnotationValueInt(method.getMarkerAnnotation(), "order"); |
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67 if (order < 0 && order != Specialization.DEFAULT_ORDER) { |
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68 getContext().getLog().error(method.getMethod(), method.getMarkerAnnotation(), "Invalid order attribute %d. The value must be >= 0 or the default value."); |
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69 return null; |
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70 } |
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71 |
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72 List<AnnotationMirror> exceptionDefs = Utils.collectAnnotations(getContext(), method.getMarkerAnnotation(), "exceptions", method.getMethod(), SpecializationThrows.class); |
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73 SpecializationThrowsData[] exceptionData = new SpecializationThrowsData[exceptionDefs.size()]; |
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74 for (int i = 0; i < exceptionData.length; i++) { |
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75 AnnotationMirror mirror = exceptionDefs.get(i); |
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76 TypeMirror javaClass = Utils.getAnnotationValueType(mirror, "javaClass"); |
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77 String transitionTo = Utils.getAnnotationValueString(mirror, "transitionTo"); |
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78 exceptionData[i] = new SpecializationThrowsData(mirror, javaClass, transitionTo); |
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79 |
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80 if (!Utils.canThrowType(method.getMethod().getThrownTypes(), javaClass)) { |
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81 getContext().getLog().error(method.getMethod(), "Method must specify a throws clause with the exception type '%s'.", Utils.getQualifiedName(javaClass)); |
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82 return null; |
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83 } |
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84 } |
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85 |
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86 Arrays.sort(exceptionData, new Comparator<SpecializationThrowsData>() { |
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87 @Override |
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88 public int compare(SpecializationThrowsData o1, SpecializationThrowsData o2) { |
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89 return Utils.compareByTypeHierarchy(o1.getJavaClass(), o2.getJavaClass()); |
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90 } |
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91 }); |
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92 SpecializationData specialization = new SpecializationData(method, order, exceptionData); |
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93 boolean valid = true; |
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94 List<AnnotationMirror> guardDefs = Utils.collectAnnotations(getContext(), method.getMarkerAnnotation(), "guards", method.getMethod(), SpecializationGuard.class); |
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95 SpecializationGuardData[] guardData = new SpecializationGuardData[guardDefs.size()]; |
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96 for (int i = 0; i < guardData.length; i++) { |
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97 AnnotationMirror guardMirror = guardDefs.get(i); |
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98 String guardMethod = Utils.getAnnotationValueString(guardMirror, "methodName"); |
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99 boolean onSpecialization = Utils.getAnnotationValueBoolean(guardMirror, "onSpecialization"); |
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100 boolean onExecution = Utils.getAnnotationValueBoolean(guardMirror, "onExecution"); |
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101 |
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102 if (!onSpecialization && !onExecution) { |
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103 String message = "Either onSpecialization, onExecution or both must be enabled."; |
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104 getContext().getLog().error(method.getMethod(), guardMirror, message); |
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105 valid = false; |
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106 continue; |
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107 } |
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108 |
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109 guardData[i] = new SpecializationGuardData(guardMethod, onSpecialization, onExecution); |
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110 |
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111 GuardData compatibleGuard = matchSpecializationGuard(guardMirror, specialization, guardData[i]); |
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112 if (compatibleGuard != null) { |
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113 guardData[i].setGuardDeclaration(compatibleGuard); |
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114 } else { |
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115 valid = false; |
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116 } |
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117 } |
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118 |
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119 if (!valid) { |
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120 return null; |
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121 } |
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122 |
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123 specialization.setGuards(guardData); |
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124 |
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125 return specialization; |
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126 } |
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127 |
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128 private GuardData matchSpecializationGuard(AnnotationMirror mirror, SpecializationData specialization, SpecializationGuardData specializationGuard) { |
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129 List<GuardData> foundGuards = getNode().findGuards(specializationGuard.getGuardMethod()); |
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130 |
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131 GuardData compatibleGuard = null; |
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132 for (GuardData guardData : foundGuards) { |
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133 if (isGuardCompatible(specialization, guardData)) { |
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134 compatibleGuard = guardData; |
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135 break; |
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136 } |
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137 } |
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138 |
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139 if (compatibleGuard == null) { |
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140 ParameterSpec returnTypeSpec = new ParameterSpec("returnValue", getContext().getType(boolean.class), false); |
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141 List<ParameterSpec> expectedParameterSpecs = new ArrayList<>(); |
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142 |
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143 for (ActualParameter param : specialization.getParameters()) { |
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144 ParameterSpec spec = param.getSpecification(); |
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145 expectedParameterSpecs.add(new ParameterSpec(spec.getName(), param.getActualType(), false)); |
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146 } |
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147 String expectedSignature = TemplateMethodParser.createExpectedSignature(specializationGuard.getGuardMethod(), returnTypeSpec, expectedParameterSpecs); |
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148 AnnotationValue value = Utils.getAnnotationValue(mirror, "methodName"); |
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149 getContext().getLog().error(specialization.getMethod(), mirror, value, "No guard with signature '%s' found in type system.", expectedSignature); |
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150 return null; |
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151 } |
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152 |
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153 return compatibleGuard; |
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154 } |
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155 |
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156 private static boolean isGuardCompatible(SpecializationData specialization, GuardData guard) { |
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157 Iterator<ActualParameter> guardParameters = Arrays.asList(guard.getParameters()).iterator(); |
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158 for (ActualParameter param : specialization.getParameters()) { |
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159 if (!guardParameters.hasNext()) { |
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160 return false; |
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161 } |
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162 ActualParameter guardParam = guardParameters.next(); |
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163 if (!Utils.typeEquals(guardParam.getActualType(), param.getActualType())) { |
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164 return false; |
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165 } |
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166 } |
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167 if (guardParameters.hasNext()) { |
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168 return false; |
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169 } |
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170 return true; |
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171 } |
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172 |
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173 |
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174 } |