Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/node/SpecializationMethodParser.java @ 7796:6ad077b60cb3
Minor cleanup.
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 15 Feb 2013 20:04:03 +0100 |
parents | 39d4a79568b6 |
children | 33e08aca06ff |
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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 public class SpecializationMethodParser extends MethodParser<SpecializationData> { |
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37 |
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38 private final MethodSpec specification; |
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39 |
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40 public SpecializationMethodParser(ProcessorContext context, NodeData operation) { |
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41 super(context, operation); |
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42 this.specification = createDefaultMethodSpec(null); |
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43 } |
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44 |
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45 @Override |
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46 public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) { |
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47 return specification; |
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48 } |
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49 |
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50 @Override |
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51 public SpecializationData create(TemplateMethod method) { |
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52 return parseSpecialization(method); |
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53 } |
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54 |
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55 @Override |
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56 public Class<? extends Annotation> getAnnotationType() { |
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57 return Specialization.class; |
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58 } |
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59 |
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60 private SpecializationData parseSpecialization(TemplateMethod method) { |
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61 int order = Utils.getAnnotationValueInt(method.getMarkerAnnotation(), "order"); |
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62 if (order < 0 && order != Specialization.DEFAULT_ORDER) { |
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63 getContext().getLog().error(method.getMethod(), method.getMarkerAnnotation(), "Invalid order attribute %d. The value must be >= 0 or the default value."); |
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64 return null; |
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65 } |
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66 |
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67 List<AnnotationMirror> exceptionDefs = Utils.collectAnnotations(getContext(), method.getMarkerAnnotation(), "exceptions", method.getMethod(), SpecializationThrows.class); |
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68 SpecializationThrowsData[] exceptionData = new SpecializationThrowsData[exceptionDefs.size()]; |
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69 for (int i = 0; i < exceptionData.length; i++) { |
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70 AnnotationMirror mirror = exceptionDefs.get(i); |
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71 TypeMirror javaClass = Utils.getAnnotationValueType(mirror, "javaClass"); |
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72 String transitionTo = Utils.getAnnotationValueString(mirror, "transitionTo"); |
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73 exceptionData[i] = new SpecializationThrowsData(mirror, javaClass, transitionTo); |
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74 |
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75 if (!Utils.canThrowType(method.getMethod().getThrownTypes(), javaClass)) { |
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76 getContext().getLog().error(method.getMethod(), "Method must specify a throws clause with the exception type '%s'.", Utils.getQualifiedName(javaClass)); |
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77 return null; |
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78 } |
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79 } |
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80 |
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81 Arrays.sort(exceptionData, new Comparator<SpecializationThrowsData>() { |
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82 |
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83 @Override |
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84 public int compare(SpecializationThrowsData o1, SpecializationThrowsData o2) { |
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85 return Utils.compareByTypeHierarchy(o1.getJavaClass(), o2.getJavaClass()); |
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86 } |
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87 }); |
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88 SpecializationData specialization = new SpecializationData(method, order, exceptionData); |
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89 boolean valid = true; |
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90 List<AnnotationMirror> guardDefs = Utils.collectAnnotations(getContext(), method.getMarkerAnnotation(), "guards", method.getMethod(), SpecializationGuard.class); |
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91 SpecializationGuardData[] guardData = new SpecializationGuardData[guardDefs.size()]; |
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92 for (int i = 0; i < guardData.length; i++) { |
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93 AnnotationMirror guardMirror = guardDefs.get(i); |
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94 String guardMethod = Utils.getAnnotationValueString(guardMirror, "methodName"); |
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95 boolean onSpecialization = Utils.getAnnotationValueBoolean(guardMirror, "onSpecialization"); |
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96 boolean onExecution = Utils.getAnnotationValueBoolean(guardMirror, "onExecution"); |
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97 |
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98 if (!onSpecialization && !onExecution) { |
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99 String message = "Either onSpecialization, onExecution or both must be enabled."; |
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100 getContext().getLog().error(method.getMethod(), guardMirror, message); |
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101 valid = false; |
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102 continue; |
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103 } |
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104 |
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105 guardData[i] = new SpecializationGuardData(guardMethod, onSpecialization, onExecution); |
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106 |
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107 GuardData compatibleGuard = matchSpecializationGuard(guardMirror, specialization, guardData[i]); |
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108 if (compatibleGuard != null) { |
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109 guardData[i].setGuardDeclaration(compatibleGuard); |
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110 } else { |
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111 valid = false; |
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112 } |
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113 } |
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114 |
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115 if (!valid) { |
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116 return null; |
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117 } |
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118 |
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119 specialization.setGuards(guardData); |
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120 |
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121 return specialization; |
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122 } |
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123 |
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124 private GuardData matchSpecializationGuard(AnnotationMirror mirror, SpecializationData specialization, SpecializationGuardData specializationGuard) { |
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125 List<GuardData> foundGuards = getNode().findGuards(specializationGuard.getGuardMethod()); |
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126 |
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127 GuardData compatibleGuard = null; |
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128 for (GuardData guardData : foundGuards) { |
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129 if (isGuardCompatible(specialization, guardData)) { |
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130 compatibleGuard = guardData; |
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131 break; |
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132 } |
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133 } |
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134 |
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135 if (compatibleGuard == null) { |
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136 ParameterSpec returnTypeSpec = new ParameterSpec("returnValue", getContext().getType(boolean.class), false); |
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137 List<ParameterSpec> expectedParameterSpecs = new ArrayList<>(); |
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138 |
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139 for (ActualParameter param : specialization.getParameters()) { |
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140 ParameterSpec spec = param.getSpecification(); |
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141 expectedParameterSpecs.add(new ParameterSpec(spec.getName(), param.getActualType(), false)); |
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142 } |
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143 List<TypeDef> typeDefs = createTypeDefinitions(returnTypeSpec, expectedParameterSpecs); |
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144 String expectedSignature = TemplateMethodParser.createExpectedSignature(specializationGuard.getGuardMethod(), returnTypeSpec, expectedParameterSpecs, typeDefs); |
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145 AnnotationValue value = Utils.getAnnotationValue(mirror, "methodName"); |
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146 getContext().getLog().error(specialization.getMethod(), mirror, value, "No guard with signature '%s' found in type system.", expectedSignature); |
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147 return null; |
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148 } |
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149 |
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150 return compatibleGuard; |
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151 } |
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152 |
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153 private static boolean isGuardCompatible(SpecializationData specialization, GuardData guard) { |
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154 Iterator<ActualParameter> guardParameters = Arrays.asList(guard.getParameters()).iterator(); |
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155 for (ActualParameter param : specialization.getParameters()) { |
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156 if (param.getSpecification().isOptional()) { |
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157 continue; |
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158 } |
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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()) && !guardParam.getSpecification().isOptional()) { |
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164 return false; |
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165 } |
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166 } |
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167 while (guardParameters.hasNext()) { |
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168 ActualParameter param = guardParameters.next(); |
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169 if (!param.getSpecification().isOptional()) { |
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170 return false; |
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171 } |
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172 } |
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173 |
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174 return true; |
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175 } |
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176 |
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177 } |