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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/model/SpecializationData.java @ 17251:6ee7afea175a

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Truffle-DSL: Fixed @SlowPath was not applied to certain specialize0 implementations. This will reduce the pressure on the truffle cache.
author Christian Humer <christian.humer@gmail.com>
date Mon, 29 Sep 2014 18:37:24 +0200
parents 89f635cbd85e
children a665483c3881
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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.model;
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24
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25 import java.util.*;
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27 import com.oracle.truffle.dsl.processor.*;
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28 import com.oracle.truffle.dsl.processor.java.*;
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29
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30 public final class SpecializationData extends TemplateMethod {
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31
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32 public enum SpecializationKind {
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33 UNINITIALIZED,
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34 SPECIALIZED,
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35 POLYMORPHIC,
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36 GENERIC
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37 }
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38
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39 private final NodeData node;
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40 private final SpecializationKind kind;
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41 private final List<SpecializationThrowsData> exceptions;
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42 private List<GuardExpression> guards = Collections.emptyList();
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43 private List<ShortCircuitData> shortCircuits;
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44 private List<String> assumptions = Collections.emptyList();
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45 private final Set<SpecializationData> contains = new TreeSet<>();
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46 private final Set<String> containsNames = new TreeSet<>();
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47 private final Set<SpecializationData> excludedBy = new TreeSet<>();
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48 private String insertBeforeName;
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49 private SpecializationData insertBefore;
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50 private boolean reachable;
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51 private int index;
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52
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53 public SpecializationData(NodeData node, TemplateMethod template, SpecializationKind kind, List<SpecializationThrowsData> exceptions) {
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54 super(template);
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55 this.node = node;
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56 this.kind = kind;
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57 this.exceptions = exceptions;
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58 this.index = template.getNaturalOrder();
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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 void setInsertBefore(SpecializationData insertBefore) {
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66 this.insertBefore = insertBefore;
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67 }
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68
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69 public void setInsertBeforeName(String insertBeforeName) {
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70 this.insertBeforeName = insertBeforeName;
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71 }
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72
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73 public SpecializationData getInsertBefore() {
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74 return insertBefore;
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75 }
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76
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77 public String getInsertBeforeName() {
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78 return insertBeforeName;
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79 }
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80
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81 public Set<String> getContainsNames() {
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82 return containsNames;
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83 }
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84
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85 public SpecializationData(NodeData node, TemplateMethod template, SpecializationKind kind) {
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86 this(node, template, kind, new ArrayList<SpecializationThrowsData>());
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87 }
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88
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89 public Set<SpecializationData> getContains() {
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90 return contains;
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91 }
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92
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93 public Set<SpecializationData> getExcludedBy() {
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94 return excludedBy;
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95 }
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97 public void setReachable(boolean reachable) {
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98 this.reachable = reachable;
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99 }
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101 public boolean isReachable() {
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102 return reachable;
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103 }
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105 public boolean isPolymorphic() {
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106 return kind == SpecializationKind.POLYMORPHIC;
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107 }
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108
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109 @Override
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110 protected List<MessageContainer> findChildContainers() {
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111 List<MessageContainer> sinks = new ArrayList<>();
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112 if (exceptions != null) {
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113 sinks.addAll(exceptions);
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114 }
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115 if (guards != null) {
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116 for (GuardExpression guard : guards) {
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117 if (guard.isResolved()) {
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118 sinks.add(guard.getResolvedGuard());
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119 }
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120 }
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121 }
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122 return sinks;
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123 }
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124
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125 public boolean hasRewrite(ProcessorContext context) {
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126 if (!getExceptions().isEmpty()) {
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127 return true;
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128 }
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129 if (!getGuards().isEmpty()) {
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130 return true;
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131 }
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132 if (!getAssumptions().isEmpty()) {
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133 return true;
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134 }
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135 for (Parameter parameter : getSignatureParameters()) {
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136 ExecutableTypeData type = parameter.getSpecification().getExecution().getChild().findExecutableType(context, parameter.getTypeSystemType());
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137 if (type.hasUnexpectedValue(context)) {
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138 return true;
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139 }
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140 if (type.getReturnType().getTypeSystemType().needsCastTo(parameter.getTypeSystemType())) {
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141 return true;
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142 }
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143
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144 }
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145 return false;
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146 }
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147
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148 @Override
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149 public int compareTo(TemplateMethod other) {
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150 if (this == other) {
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151 return 0;
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152 } else if (!(other instanceof SpecializationData)) {
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153 return super.compareTo(other);
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154 }
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155 SpecializationData m2 = (SpecializationData) other;
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156 int kindOrder = kind.compareTo(m2.kind);
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157 if (kindOrder != 0) {
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158 return kindOrder;
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159 }
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160
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161 int compare = 0;
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162 int order1 = index;
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163 int order2 = m2.index;
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164 if (order1 != NO_NATURAL_ORDER && order2 != NO_NATURAL_ORDER) {
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165 compare = Integer.compare(order1, order2);
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166 if (compare != 0) {
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167 return compare;
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168 }
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169 }
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170
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171 return super.compareTo(other);
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172 }
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173
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174 public void setIndex(int order) {
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175 this.index = order;
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176 }
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177
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178 public int getIndex() {
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179 return index;
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180 }
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181
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182 public boolean isContainedBy(SpecializationData next) {
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183 if (compareTo(next) > 0) {
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184 // must be declared after the current specialization
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185 return false;
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186 }
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187
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188 Iterator<Parameter> currentSignature = getSignatureParameters().iterator();
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189 Iterator<Parameter> nextSignature = next.getSignatureParameters().iterator();
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190
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191 while (currentSignature.hasNext() && nextSignature.hasNext()) {
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192 TypeData currentType = currentSignature.next().getTypeSystemType();
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193 TypeData prevType = nextSignature.next().getTypeSystemType();
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194
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195 if (!currentType.isImplicitSubtypeOf(prevType)) {
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196 return false;
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197 }
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198 }
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199
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200 for (String nextAssumption : next.getAssumptions()) {
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201 if (!getAssumptions().contains(nextAssumption)) {
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202 return false;
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203 }
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204 }
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205
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206 Iterator<GuardExpression> nextGuards = next.getGuards().iterator();
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diff changeset
207 while (nextGuards.hasNext()) {
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208 GuardExpression nextGuard = nextGuards.next();
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diff changeset
209 boolean implied = false;
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210 for (GuardExpression currentGuard : getGuards()) {
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diff changeset
211 if (currentGuard.implies(nextGuard)) {
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212 implied = true;
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213 break;
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214 }
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215 }
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diff changeset
216 if (!implied) {
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217 return false;
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218 }
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219 }
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220
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221 return true;
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222 }
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223
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224 public String createReferenceName() {
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diff changeset
225 if (getMethod() == null) {
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226 return "-";
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227 }
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228 return ElementUtils.createReferenceName(getMethod());
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229 }
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230
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231 public NodeData getNode() {
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232 return node;
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233 }
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234
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235 public void setGuards(List<GuardExpression> guards) {
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236 this.guards = guards;
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237 }
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238
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diff changeset
239 public boolean isSpecialized() {
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diff changeset
240 return kind == SpecializationKind.SPECIALIZED;
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diff changeset
241 }
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diff changeset
242
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243 public boolean isGeneric() {
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244 return kind == SpecializationKind.GENERIC;
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245 }
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246
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247 public boolean isUninitialized() {
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248 return kind == SpecializationKind.UNINITIALIZED;
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249 }
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250
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251 public List<SpecializationThrowsData> getExceptions() {
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252 return exceptions;
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253 }
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254
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255 public List<GuardExpression> getGuards() {
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256 return guards;
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257 }
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258
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259 public void setShortCircuits(List<ShortCircuitData> shortCircuits) {
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260 this.shortCircuits = shortCircuits;
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261 }
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262
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263 public List<ShortCircuitData> getShortCircuits() {
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264 return shortCircuits;
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265 }
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266
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267 public List<String> getAssumptions() {
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268 return assumptions;
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269 }
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270
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271 public void setAssumptions(List<String> assumptions) {
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272 this.assumptions = assumptions;
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273 }
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274
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275 public SpecializationData findNextSpecialization() {
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276 List<SpecializationData> specializations = node.getSpecializations();
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277 for (int i = 0; i < specializations.size() - 1; i++) {
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278 if (specializations.get(i) == this) {
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279 return specializations.get(i + 1);
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280 }
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281 }
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282 return null;
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283 }
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284
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285 @Override
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286 public String toString() {
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287 return String.format("%s [id = %s, method = %s, guards = %s, signature = %s]", getClass().getSimpleName(), getId(), getMethod(), getGuards(), getTypeSignature());
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288 }
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289
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290 public boolean isFrameUsedByGuard(ProcessorContext context) {
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291 for (GuardExpression guard : getGuards()) {
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292 if (guard.getResolvedGuard() == null) {
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293 continue;
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294 }
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295
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296 for (Parameter param : guard.getResolvedGuard().getParameters()) {
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297 if (ElementUtils.typeEquals(param.getType(), context.getTruffleTypes().getFrame())) {
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298 return true;
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299 }
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300 }
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301 }
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302
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303 return false;
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304 }
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305
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306 public boolean isReachableAfter(SpecializationData prev) {
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307 if (!prev.isSpecialized()) {
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308 return true;
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309 }
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310
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311 if (!prev.getExceptions().isEmpty()) {
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312 return true;
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313 }
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314
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315 Iterator<Parameter> currentSignature = getSignatureParameters().iterator();
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316 Iterator<Parameter> prevSignature = prev.getSignatureParameters().iterator();
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317
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318 while (currentSignature.hasNext() && prevSignature.hasNext()) {
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319 TypeData currentType = currentSignature.next().getTypeSystemType();
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320 TypeData prevType = prevSignature.next().getTypeSystemType();
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321
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322 if (!currentType.isImplicitSubtypeOf(prevType)) {
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323 return true;
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324 }
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325 }
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326
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327 for (String prevAssumption : prev.getAssumptions()) {
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328 if (!getAssumptions().contains(prevAssumption)) {
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329 return true;
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330 }
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331 }
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332
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333 Iterator<GuardExpression> prevGuards = prev.getGuards().iterator();
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334 Iterator<GuardExpression> currentGuards = getGuards().iterator();
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335 while (prevGuards.hasNext()) {
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336 GuardExpression prevGuard = prevGuards.next();
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337 GuardExpression currentGuard = currentGuards.hasNext() ? currentGuards.next() : null;
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338 if (currentGuard == null || !currentGuard.implies(prevGuard)) {
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339 return true;
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340 }
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341 }
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342
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343 return false;
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344 }
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345 }