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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/node/SpecializationData.java @ 14908:8db6e76cb658

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Formatter: Keep one enum constant per line
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 14:09:03 +0200
parents 85b485b1e8e1
children bd28da642eea
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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.dsl.processor.node;
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25 import java.util.*;
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27 import javax.lang.model.type.*;
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29 import com.oracle.truffle.api.dsl.*;
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30 import com.oracle.truffle.dsl.processor.*;
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31 import com.oracle.truffle.dsl.processor.template.*;
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32 import com.oracle.truffle.dsl.processor.typesystem.*;
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33
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34 public class SpecializationData extends TemplateMethod {
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35
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36 public enum SpecializationKind {
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37 UNINITIALIZED,
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38 SPECIALIZED,
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39 POLYMORPHIC,
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40 GENERIC
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41 }
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42
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43 private final NodeData node;
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44 private final int order;
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45 private final SpecializationKind kind;
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46 private final List<SpecializationThrowsData> exceptions;
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47 private List<String> guardDefinitions = Collections.emptyList();
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48 private List<GuardData> guards = Collections.emptyList();
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49 private List<ShortCircuitData> shortCircuits;
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50 private List<String> assumptions = Collections.emptyList();
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51 private boolean reachable;
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52
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53 public SpecializationData(NodeData node, TemplateMethod template, SpecializationKind kind, int order, List<SpecializationThrowsData> exceptions) {
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54 super(template);
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55 this.node = node;
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56 this.order = order;
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57 this.kind = kind;
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58 this.exceptions = exceptions;
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59
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60 for (SpecializationThrowsData exception : exceptions) {
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61 exception.setSpecialization(this);
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62 }
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63 }
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64
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65 public SpecializationData(NodeData node, TemplateMethod template, SpecializationKind kind) {
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66 this(node, template, kind, Specialization.DEFAULT_ORDER, new ArrayList<SpecializationThrowsData>());
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67 }
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69 public void setReachable(boolean reachable) {
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70 this.reachable = reachable;
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71 }
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73 public boolean isReachable() {
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74 return reachable;
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75 }
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76
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77 public boolean isPolymorphic() {
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78 return kind == SpecializationKind.POLYMORPHIC;
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79 }
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80
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81 @Override
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82 protected List<MessageContainer> findChildContainers() {
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83 List<MessageContainer> sinks = new ArrayList<>();
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84 if (exceptions != null) {
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85 sinks.addAll(exceptions);
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86 }
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87 if (guards != null) {
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88 sinks.addAll(guards);
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89 }
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90 return sinks;
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91 }
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93 public boolean isGenericSpecialization(ProcessorContext context) {
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94 if (isGeneric()) {
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95 return true;
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96 }
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97 if (hasRewrite(context)) {
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98 return false;
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99 }
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100
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101 for (ActualParameter parameter : getSignatureParameters()) {
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102 ActualParameter genericParameter = getNode().getGenericSpecialization().findParameter(parameter.getLocalName());
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103 if (!parameter.getTypeSystemType().equals(genericParameter.getTypeSystemType())) {
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104 return false;
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105 }
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106 }
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107 return true;
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108 }
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109
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110 public boolean hasRewrite(ProcessorContext context) {
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111 if (!getExceptions().isEmpty()) {
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112 return true;
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113 }
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114 if (!getGuards().isEmpty()) {
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115 return true;
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116 }
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117 if (!getAssumptions().isEmpty()) {
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118 return true;
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119 }
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120 for (ActualParameter parameter : getSignatureParameters()) {
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121 ExecutableTypeData type = parameter.getSpecification().getExecution().getChild().findExecutableType(context, parameter.getTypeSystemType());
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122 if (type.hasUnexpectedValue(context)) {
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123 return true;
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124 }
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125 if (type.getReturnType().getTypeSystemType().needsCastTo(context, parameter.getTypeSystemType())) {
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126 return true;
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127 }
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128
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129 }
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130 return false;
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131 }
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132
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133 @Override
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134 public int compareBySignature(TemplateMethod other) {
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135 if (this == other) {
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136 return 0;
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137 } else if (!(other instanceof SpecializationData)) {
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138 return super.compareBySignature(other);
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139 }
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140
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141 SpecializationData m2 = (SpecializationData) other;
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142
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143 int kindOrder = kind.compareTo(m2.kind);
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144 if (kindOrder != 0) {
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145 return kindOrder;
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146 }
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147 if (getOrder() != Specialization.DEFAULT_ORDER && m2.getOrder() != Specialization.DEFAULT_ORDER) {
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148 return getOrder() - m2.getOrder();
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149 }
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150
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151 if (getTemplate() != m2.getTemplate()) {
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152 throw new UnsupportedOperationException("Cannot compare two specializations with different templates.");
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153 }
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154
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155 return super.compareBySignature(m2);
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156 }
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157
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158 public NodeData getNode() {
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159 return node;
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160 }
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161
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162 public void setGuards(List<GuardData> guards) {
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163 this.guards = guards;
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164 }
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165
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166 public void setGuardDefinitions(List<String> guardDefinitions) {
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167 this.guardDefinitions = guardDefinitions;
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168 }
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169
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170 public int getOrder() {
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171 return order;
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172 }
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173
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174 public boolean isSpecialized() {
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175 return kind == SpecializationKind.SPECIALIZED;
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176 }
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177
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178 public boolean isGeneric() {
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179 return kind == SpecializationKind.GENERIC;
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180 }
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181
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182 public boolean isUninitialized() {
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183 return kind == SpecializationKind.UNINITIALIZED;
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184 }
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185
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186 public List<SpecializationThrowsData> getExceptions() {
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187 return exceptions;
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188 }
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189
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190 public List<String> getGuardDefinitions() {
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191 return guardDefinitions;
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192 }
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193
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194 public List<GuardData> getGuards() {
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195 return guards;
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196 }
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197
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198 public void setShortCircuits(List<ShortCircuitData> shortCircuits) {
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199 this.shortCircuits = shortCircuits;
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200 }
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201
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202 public List<ShortCircuitData> getShortCircuits() {
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203 return shortCircuits;
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204 }
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205
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206 public List<String> getAssumptions() {
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207 return assumptions;
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208 }
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209
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210 void setAssumptions(List<String> assumptions) {
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211 this.assumptions = assumptions;
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212 }
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213
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214 public SpecializationData findPreviousSpecialization() {
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215 List<SpecializationData> specializations = node.getSpecializations();
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216 for (int i = 0; i < specializations.size() - 1; i++) {
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217 if (specializations.get(i) == this && i > 0) {
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218 return specializations.get(i - 1);
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219 }
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220 }
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221 return null;
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222 }
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223
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224 public SpecializationData findNextSpecialization() {
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225 List<SpecializationData> specializations = node.getSpecializations();
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226 for (int i = 0; i < specializations.size() - 1; i++) {
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227 if (specializations.get(i) == this) {
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228 return specializations.get(i + 1);
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229 }
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230 }
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231 return null;
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232 }
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233
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234 public boolean hasDynamicGuards() {
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235 return !getGuards().isEmpty();
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236 }
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237
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238 @Override
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239 public String toString() {
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240 return String.format("%s [id = %s, method = %s, guards = %s, signature = %s]", getClass().getSimpleName(), getId(), getMethod(), getGuards(), getTypeSignature());
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241 }
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242
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243 public void forceFrame(TypeMirror frameType) {
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244 if (getParameters().isEmpty() || !Utils.typeEquals(getParameters().get(0).getType(), frameType)) {
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245 ParameterSpec frameSpec = getSpecification().findParameterSpec("frame");
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246 if (frameSpec != null) {
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247 getParameters().add(0, new ActualParameter(frameSpec, frameType, -1, -1));
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248 }
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249 }
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250 }
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251
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252 public boolean equalsGuards(SpecializationData specialization) {
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253 if (assumptions.equals(specialization.getAssumptions()) && guards.equals(specialization.getGuards()) && getTypeSignature().equalsParameters(specialization.getTypeSignature())) {
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254 return true;
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255 }
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256 return false;
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257 }
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258
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259 public boolean hasFrame(ProcessorContext context) {
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260 for (ActualParameter param : getParameters()) {
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261 if (Utils.typeEquals(param.getType(), context.getTruffleTypes().getFrame())) {
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262 return true;
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263 }
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264 }
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265 return false;
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266 }
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267
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268 }