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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/model/SpecializationData.java @ 19289:62c43fcf5be2

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Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
author Christian Humer <christian.humer@gmail.com>
date Tue, 03 Feb 2015 15:07:07 +0100
parents 08aa0372dad4
children f4792a544170
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rev   line source
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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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26
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27 import javax.lang.model.element.*;
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28
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29 import com.oracle.truffle.dsl.processor.*;
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30 import com.oracle.truffle.dsl.processor.expression.*;
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31 import com.oracle.truffle.dsl.processor.java.*;
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32
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33 public final class SpecializationData extends TemplateMethod {
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34
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35 public enum SpecializationKind {
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36 UNINITIALIZED,
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37 SPECIALIZED,
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38 POLYMORPHIC,
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39 FALLBACK
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40 }
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41
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42 private final NodeData node;
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43 private final SpecializationKind kind;
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44 private final List<SpecializationThrowsData> exceptions;
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45 private List<GuardExpression> guards = Collections.emptyList();
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46 private List<CacheExpression> caches = Collections.emptyList();
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47 private List<AssumptionExpression> assumptionExpressions = Collections.emptyList();
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48 private List<ShortCircuitData> shortCircuits;
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49 private List<String> assumptions = Collections.emptyList();
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50 private final Set<SpecializationData> contains = new TreeSet<>();
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51 private final Set<String> containsNames = new TreeSet<>();
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52 private final Set<SpecializationData> excludedBy = new TreeSet<>();
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53 private String insertBeforeName;
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54 private SpecializationData insertBefore;
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55 private boolean reachable;
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56 private int index;
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57 private DSLExpression limitExpression;
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58
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59 public SpecializationData(NodeData node, TemplateMethod template, SpecializationKind kind, List<SpecializationThrowsData> exceptions) {
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60 super(template);
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61 this.node = node;
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62 this.kind = kind;
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63 this.exceptions = exceptions;
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64 this.index = template.getNaturalOrder();
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65
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66 for (SpecializationThrowsData exception : exceptions) {
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67 exception.setSpecialization(this);
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68 }
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69 }
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70
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71 public boolean isDynamicParameterBound(DSLExpression expression) {
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72 Set<VariableElement> boundVariables = expression.findBoundVariableElements();
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73 for (Parameter parameter : getDynamicParameters()) {
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74 if (boundVariables.contains(parameter.getVariableElement())) {
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75 return true;
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76 }
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77 }
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78 return false;
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79 }
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80
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81 public Parameter findByVariable(VariableElement variable) {
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82 for (Parameter parameter : getParameters()) {
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83 if (ElementUtils.variableEquals(parameter.getVariableElement(), variable)) {
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84 return parameter;
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85 }
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86 }
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87 return null;
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88 }
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89
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90 public DSLExpression getLimitExpression() {
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91 return limitExpression;
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92 }
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93
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94 public void setLimitExpression(DSLExpression limitExpression) {
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95 this.limitExpression = limitExpression;
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96 }
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97
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98 public void setInsertBefore(SpecializationData insertBefore) {
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99 this.insertBefore = insertBefore;
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100 }
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101
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102 public void setInsertBeforeName(String insertBeforeName) {
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103 this.insertBeforeName = insertBeforeName;
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104 }
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105
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106 public SpecializationData getInsertBefore() {
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107 return insertBefore;
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108 }
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109
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110 public String getInsertBeforeName() {
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111 return insertBeforeName;
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112 }
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113
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114 public Set<String> getContainsNames() {
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115 return containsNames;
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116 }
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117
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118 public SpecializationData(NodeData node, TemplateMethod template, SpecializationKind kind) {
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119 this(node, template, kind, new ArrayList<SpecializationThrowsData>());
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120 }
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121
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122 public Set<SpecializationData> getContains() {
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123 return contains;
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124 }
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125
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126 public Set<SpecializationData> getExcludedBy() {
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127 return excludedBy;
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128 }
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129
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130 public void setReachable(boolean reachable) {
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131 this.reachable = reachable;
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132 }
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133
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134 public boolean isReachable() {
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135 return reachable;
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136 }
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137
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138 public boolean isPolymorphic() {
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139 return kind == SpecializationKind.POLYMORPHIC;
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140 }
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141
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142 public List<Parameter> getDynamicParameters() {
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143 List<Parameter> uncachedParameters = new ArrayList<>(getParameters());
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144 for (CacheExpression cacheExpression : getCaches()) {
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145 uncachedParameters.remove(cacheExpression.getParameter());
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146 }
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147 return uncachedParameters;
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148 }
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149
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150 @Override
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151 protected List<MessageContainer> findChildContainers() {
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152 List<MessageContainer> sinks = new ArrayList<>();
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153 if (exceptions != null) {
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154 sinks.addAll(exceptions);
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155 }
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156 if (guards != null) {
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157 sinks.addAll(guards);
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158 }
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159 if (caches != null) {
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160 sinks.addAll(caches);
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161 }
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162 return sinks;
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163 }
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164
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165 public boolean hasRewrite(ProcessorContext context) {
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166 if (!getExceptions().isEmpty()) {
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167 return true;
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168 }
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169 if (!getGuards().isEmpty()) {
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170 return true;
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171 }
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172 if (!getAssumptions().isEmpty()) {
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173 return true;
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174 }
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175
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176 for (Parameter parameter : getSignatureParameters()) {
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177 NodeChildData child = parameter.getSpecification().getExecution().getChild();
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178 ExecutableTypeData type = child.findExecutableType(parameter.getTypeSystemType());
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179 if (type == null) {
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180 type = child.findAnyGenericExecutableType(context);
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181 }
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182 if (type.hasUnexpectedValue(context)) {
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183 return true;
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184 }
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185 if (type.getReturnType().getTypeSystemType().needsCastTo(parameter.getTypeSystemType())) {
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186 return true;
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187 }
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188
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189 }
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190 return false;
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191 }
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192
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193 @Override
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194 public int compareTo(TemplateMethod other) {
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195 if (this == other) {
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196 return 0;
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197 } else if (!(other instanceof SpecializationData)) {
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198 return super.compareTo(other);
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199 }
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200 SpecializationData m2 = (SpecializationData) other;
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201 int kindOrder = kind.compareTo(m2.kind);
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202 if (kindOrder != 0) {
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203 return kindOrder;
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204 }
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205
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206 int compare = 0;
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207 int order1 = index;
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208 int order2 = m2.index;
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209 if (order1 != NO_NATURAL_ORDER && order2 != NO_NATURAL_ORDER) {
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210 compare = Integer.compare(order1, order2);
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211 if (compare != 0) {
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212 return compare;
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213 }
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214 }
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215
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216 return super.compareTo(other);
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217 }
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218
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219 public void setIndex(int order) {
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220 this.index = order;
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221 }
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222
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223 public int getIndex() {
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224 return index;
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225 }
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226
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227 public NodeData getNode() {
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228 return node;
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229 }
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230
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231 public void setGuards(List<GuardExpression> guards) {
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232 this.guards = guards;
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233 }
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234
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235 public boolean isSpecialized() {
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236 return kind == SpecializationKind.SPECIALIZED;
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237 }
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238
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239 public boolean isFallback() {
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240 return kind == SpecializationKind.FALLBACK;
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241 }
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242
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243 public boolean isUninitialized() {
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244 return kind == SpecializationKind.UNINITIALIZED;
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245 }
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246
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247 public List<SpecializationThrowsData> getExceptions() {
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248 return exceptions;
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249 }
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250
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251 public List<GuardExpression> getGuards() {
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252 return guards;
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253 }
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254
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255 public void setShortCircuits(List<ShortCircuitData> shortCircuits) {
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256 this.shortCircuits = shortCircuits;
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257 }
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258
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259 public List<ShortCircuitData> getShortCircuits() {
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260 return shortCircuits;
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261 }
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262
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263 public List<String> getAssumptions() {
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264 return assumptions;
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265 }
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266
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267 public void setAssumptions(List<String> assumptions) {
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268 this.assumptions = assumptions;
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269 }
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270
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271 public SpecializationData findNextSpecialization() {
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272 List<SpecializationData> specializations = node.getSpecializations();
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273 for (int i = 0; i < specializations.size() - 1; i++) {
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274 if (specializations.get(i) == this) {
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275 return specializations.get(i + 1);
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276 }
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277 }
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278 return null;
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279 }
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280
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281 @Override
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282 public String toString() {
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283 return String.format("%s [id = %s, method = %s, guards = %s, signature = %s]", getClass().getSimpleName(), getId(), getMethod(), getGuards(), getTypeSignature());
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284 }
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285
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286 public boolean isFrameUsed() {
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287 return getFrame() != null;
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288 }
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289
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290 public List<CacheExpression> getCaches() {
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291 return caches;
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292 }
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293
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294 public void setCaches(List<CacheExpression> caches) {
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295 this.caches = caches;
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296 }
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297
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298 public void setAssumptionExpressions(List<AssumptionExpression> assumptionExpressions) {
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299 this.assumptionExpressions = assumptionExpressions;
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300 }
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301
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302 public List<AssumptionExpression> getAssumptionExpressions() {
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303 return assumptionExpressions;
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304 }
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305
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306 public boolean hasMultipleInstances() {
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307 if (!getCaches().isEmpty()) {
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308 for (GuardExpression guard : getGuards()) {
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309 DSLExpression guardExpression = guard.getExpression();
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310 Set<VariableElement> boundVariables = guardExpression.findBoundVariableElements();
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311 if (isDynamicParameterBound(guardExpression)) {
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312 for (CacheExpression cache : getCaches()) {
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313 if (boundVariables.contains(cache.getParameter().getVariableElement())) {
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314 return true;
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315 }
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316 }
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317 }
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318 }
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319 }
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320
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321 return false;
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322
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323 }
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324
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325 public boolean isReachableAfter(SpecializationData prev) {
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326 if (!prev.isSpecialized()) {
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327 return true;
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328 }
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329
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330 if (!prev.getExceptions().isEmpty()) {
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331 // may get excluded by exception
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332 return true;
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333 }
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334
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335 if (hasMultipleInstances()) {
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336 // may fallthrough due to limit
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337 return true;
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338 }
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339
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340 Iterator<Parameter> currentSignature = getSignatureParameters().iterator();
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341 Iterator<Parameter> prevSignature = prev.getSignatureParameters().iterator();
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342
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343 while (currentSignature.hasNext() && prevSignature.hasNext()) {
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344 TypeData currentType = currentSignature.next().getTypeSystemType();
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345 TypeData prevType = prevSignature.next().getTypeSystemType();
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346
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347 if (!currentType.isImplicitSubtypeOf(prevType)) {
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348 return true;
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349 }
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350 }
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351
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352 for (String prevAssumption : prev.getAssumptions()) {
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353 if (!getAssumptions().contains(prevAssumption)) {
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354 return true;
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355 }
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356 }
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357
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358 Iterator<GuardExpression> prevGuards = prev.getGuards().iterator();
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359 Iterator<GuardExpression> currentGuards = getGuards().iterator();
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360 while (prevGuards.hasNext()) {
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361 GuardExpression prevGuard = prevGuards.next();
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362 GuardExpression currentGuard = currentGuards.hasNext() ? currentGuards.next() : null;
bd28da642eea Truffle-DSL: Several new features implemented:
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parents: 14908
diff changeset
363 if (currentGuard == null || !currentGuard.implies(prevGuard)) {
bd28da642eea Truffle-DSL: Several new features implemented:
Christian Humer <christian.humer@gmail.com>
parents: 14908
diff changeset
364 return true;
bd28da642eea Truffle-DSL: Several new features implemented:
Christian Humer <christian.humer@gmail.com>
parents: 14908
diff changeset
365 }
bd28da642eea Truffle-DSL: Several new features implemented:
Christian Humer <christian.humer@gmail.com>
parents: 14908
diff changeset
366 }
bd28da642eea Truffle-DSL: Several new features implemented:
Christian Humer <christian.humer@gmail.com>
parents: 14908
diff changeset
367
bd28da642eea Truffle-DSL: Several new features implemented:
Christian Humer <christian.humer@gmail.com>
parents: 14908
diff changeset
368 return false;
bd28da642eea Truffle-DSL: Several new features implemented:
Christian Humer <christian.humer@gmail.com>
parents: 14908
diff changeset
369 }
19289
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
370
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
371 public CacheExpression findCache(Parameter resolvedParameter) {
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
372 for (CacheExpression cache : getCaches()) {
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
373 if (cache.getParameter() == resolvedParameter) {
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
374 return cache;
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
375 }
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
376 }
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
377 return null;
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
378 }
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
379
10597
79041ab43660 Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
380 }