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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/model/SpecializationData.java @ 18776:c0fb70634640

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Truffle-DSL: support for frame types Frame, MaterializedFrame. Added validation for frame type consistency. Some refactorings along the way.
author Christian Humer <christian.humer@gmail.com>
date Mon, 05 Jan 2015 01:31:08 +0100
parents a069a87b9a02
children 08aa0372dad4
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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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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 FALLBACK
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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 NodeChildData child = parameter.getSpecification().getExecution().getChild();
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137 ExecutableTypeData type = child.findExecutableType(parameter.getTypeSystemType());
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138 if (type == null) {
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139 type = child.findAnyGenericExecutableType(context);
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140 }
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141 if (type.hasUnexpectedValue(context)) {
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142 return true;
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143 }
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144 if (type.getReturnType().getTypeSystemType().needsCastTo(parameter.getTypeSystemType())) {
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145 return true;
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146 }
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147
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148 }
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149 return false;
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150 }
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151
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152 @Override
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153 public int compareTo(TemplateMethod other) {
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154 if (this == other) {
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155 return 0;
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156 } else if (!(other instanceof SpecializationData)) {
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157 return super.compareTo(other);
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158 }
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159 SpecializationData m2 = (SpecializationData) other;
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160 int kindOrder = kind.compareTo(m2.kind);
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161 if (kindOrder != 0) {
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162 return kindOrder;
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163 }
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164
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165 int compare = 0;
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166 int order1 = index;
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167 int order2 = m2.index;
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168 if (order1 != NO_NATURAL_ORDER && order2 != NO_NATURAL_ORDER) {
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169 compare = Integer.compare(order1, order2);
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170 if (compare != 0) {
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171 return compare;
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172 }
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173 }
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174
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175 return super.compareTo(other);
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176 }
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177
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178 public void setIndex(int order) {
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179 this.index = order;
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180 }
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181
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182 public int getIndex() {
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183 return index;
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184 }
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185
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186 public boolean isContainedBy(SpecializationData next) {
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187 if (compareTo(next) > 0) {
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188 // must be declared after the current specialization
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189 return false;
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190 }
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191
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192 Iterator<Parameter> currentSignature = getSignatureParameters().iterator();
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193 Iterator<Parameter> nextSignature = next.getSignatureParameters().iterator();
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194
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195 while (currentSignature.hasNext() && nextSignature.hasNext()) {
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196 TypeData currentType = currentSignature.next().getTypeSystemType();
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197 TypeData prevType = nextSignature.next().getTypeSystemType();
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198
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diff changeset
199 if (!currentType.isImplicitSubtypeOf(prevType)) {
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200 return false;
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201 }
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202 }
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203
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diff changeset
204 for (String nextAssumption : next.getAssumptions()) {
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diff changeset
205 if (!getAssumptions().contains(nextAssumption)) {
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diff changeset
206 return false;
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diff changeset
207 }
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diff changeset
208 }
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209
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diff changeset
210 Iterator<GuardExpression> nextGuards = next.getGuards().iterator();
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diff changeset
211 while (nextGuards.hasNext()) {
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diff changeset
212 GuardExpression nextGuard = nextGuards.next();
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diff changeset
213 boolean implied = false;
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diff changeset
214 for (GuardExpression currentGuard : getGuards()) {
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diff changeset
215 if (currentGuard.implies(nextGuard)) {
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diff changeset
216 implied = true;
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diff changeset
217 break;
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218 }
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diff changeset
219 }
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diff changeset
220 if (!implied) {
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diff changeset
221 return false;
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diff changeset
222 }
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223 }
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diff changeset
224
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diff changeset
225 return true;
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diff changeset
226 }
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diff changeset
227
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228 public NodeData getNode() {
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diff changeset
229 return node;
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230 }
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diff changeset
231
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232 public void setGuards(List<GuardExpression> guards) {
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diff changeset
233 this.guards = guards;
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diff changeset
234 }
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diff changeset
235
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diff changeset
236 public boolean isSpecialized() {
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diff changeset
237 return kind == SpecializationKind.SPECIALIZED;
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diff changeset
238 }
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diff changeset
239
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diff changeset
240 public boolean isFallback() {
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241 return kind == SpecializationKind.FALLBACK;
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242 }
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diff changeset
243
79041ab43660 Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
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diff changeset
244 public boolean isUninitialized() {
13528
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diff changeset
245 return kind == SpecializationKind.UNINITIALIZED;
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246 }
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247
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248 public List<SpecializationThrowsData> getExceptions() {
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249 return exceptions;
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250 }
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251
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252 public List<GuardExpression> getGuards() {
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253 return guards;
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254 }
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255
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256 public void setShortCircuits(List<ShortCircuitData> shortCircuits) {
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257 this.shortCircuits = shortCircuits;
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258 }
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259
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260 public List<ShortCircuitData> getShortCircuits() {
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261 return shortCircuits;
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262 }
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263
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264 public List<String> getAssumptions() {
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265 return assumptions;
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266 }
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267
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268 public void setAssumptions(List<String> assumptions) {
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269 this.assumptions = assumptions;
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270 }
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271
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272 public SpecializationData findNextSpecialization() {
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273 List<SpecializationData> specializations = node.getSpecializations();
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274 for (int i = 0; i < specializations.size() - 1; i++) {
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275 if (specializations.get(i) == this) {
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276 return specializations.get(i + 1);
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277 }
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278 }
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279 return null;
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280 }
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281
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282 @Override
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283 public String toString() {
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284 return String.format("%s [id = %s, method = %s, guards = %s, signature = %s]", getClass().getSimpleName(), getId(), getMethod(), getGuards(), getTypeSignature());
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285 }
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286
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287 public boolean isFrameUsedByGuard() {
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288 for (GuardExpression guard : getGuards()) {
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289 if (guard.getResolvedGuard() == null) {
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290 continue;
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291 }
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292
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293 for (Parameter param : guard.getResolvedGuard().getParameters()) {
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294 if (ElementUtils.typeEquals(param.getType(), getNode().getFrameType())) {
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295 return true;
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296 }
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297 }
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298 }
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299
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300 return false;
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301 }
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302
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303 public boolean isReachableAfter(SpecializationData prev) {
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304 if (!prev.isSpecialized()) {
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305 return true;
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306 }
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307
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308 if (!prev.getExceptions().isEmpty()) {
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309 return true;
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310 }
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311
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312 Iterator<Parameter> currentSignature = getSignatureParameters().iterator();
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313 Iterator<Parameter> prevSignature = prev.getSignatureParameters().iterator();
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314
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315 while (currentSignature.hasNext() && prevSignature.hasNext()) {
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316 TypeData currentType = currentSignature.next().getTypeSystemType();
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317 TypeData prevType = prevSignature.next().getTypeSystemType();
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318
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319 if (!currentType.isImplicitSubtypeOf(prevType)) {
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320 return true;
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321 }
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322 }
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323
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324 for (String prevAssumption : prev.getAssumptions()) {
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325 if (!getAssumptions().contains(prevAssumption)) {
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326 return true;
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327 }
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328 }
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329
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330 Iterator<GuardExpression> prevGuards = prev.getGuards().iterator();
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331 Iterator<GuardExpression> currentGuards = getGuards().iterator();
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332 while (prevGuards.hasNext()) {
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333 GuardExpression prevGuard = prevGuards.next();
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334 GuardExpression currentGuard = currentGuards.hasNext() ? currentGuards.next() : null;
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335 if (currentGuard == null || !currentGuard.implies(prevGuard)) {
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336 return true;
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337 }
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338 }
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339
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340 return false;
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341 }
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342 }