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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/SpecializationGroup.java @ 16759:23415229349b

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Truffle-DSL: new package structure.
author Christian Humer <christian.humer@gmail.com>
date Mon, 11 Aug 2014 15:57:14 +0200
parents graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/node/SpecializationGroup.java@bd28da642eea
children 2db61eddcb97
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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.parser;
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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.type.*;
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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.java.*;
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31 import com.oracle.truffle.dsl.processor.model.*;
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32 import com.oracle.truffle.dsl.processor.model.TemplateMethod.TypeSignature;
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33
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34 /**
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35 * Class creates groups of specializations to optimize the layout of generated executeAndSpecialize
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36 * and generic execute methods.
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37 */
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38 public final class SpecializationGroup {
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39
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40 private final List<String> assumptions;
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41 private final List<TypeGuard> typeGuards;
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42 private final List<GuardExpression> guards;
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43
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44 private final NodeData node;
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45 private final SpecializationData specialization;
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46 private final List<SpecializationGroup> children = new ArrayList<>();
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47
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48 private SpecializationGroup parent;
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49
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50 private SpecializationGroup(SpecializationData data) {
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51 this.node = data.getNode();
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52 this.assumptions = new ArrayList<>();
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53 this.typeGuards = new ArrayList<>();
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54 this.guards = new ArrayList<>();
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55 this.specialization = data;
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56
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57 this.assumptions.addAll(data.getAssumptions());
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58 TypeSignature sig = data.getTypeSignature();
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59 for (int i = 1; i < sig.size(); i++) {
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60 typeGuards.add(new TypeGuard(sig.get(i), i - 1));
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61 }
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62 this.guards.addAll(data.getGuards());
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63 }
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64
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65 public SpecializationGroup(List<SpecializationGroup> children, List<String> assumptionMatches, List<TypeGuard> typeGuardsMatches, List<GuardExpression> guardMatches) {
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66 assert !children.isEmpty() : "children must not be empty";
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67 this.assumptions = assumptionMatches;
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68 this.typeGuards = typeGuardsMatches;
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69 this.guards = guardMatches;
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70 this.node = children.get(0).node;
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71 this.specialization = null;
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72 updateChildren(children);
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73 }
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74
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75 public List<TypeGuard> getAllGuards() {
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76 List<TypeGuard> collectedGuards = new ArrayList<>();
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77 collectedGuards.addAll(typeGuards);
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78 if (parent != null) {
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79 collectedGuards.addAll(parent.getAllGuards());
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80 }
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81 return collectedGuards;
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82 }
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83
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84 public TypeGuard findTypeGuard(int signatureIndex) {
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85 for (TypeGuard guard : typeGuards) {
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86 if (guard.getSignatureIndex() == signatureIndex) {
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87 return guard;
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88 }
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89 }
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90 return null;
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91 }
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92
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93 public List<GuardExpression> findElseConnectableGuards() {
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94 if (!getTypeGuards().isEmpty() || !getAssumptions().isEmpty()) {
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95 return Collections.emptyList();
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96 }
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97
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98 if (getGuards().isEmpty()) {
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99 return Collections.emptyList();
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100 }
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101
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102 List<GuardExpression> elseConnectableGuards = new ArrayList<>();
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103 int guardIndex = 0;
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104 while (guardIndex < getGuards().size() && findNegatedGuardInPrevious(getGuards().get(guardIndex)) != null) {
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105 elseConnectableGuards.add(getGuards().get(guardIndex));
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106 guardIndex++;
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107 }
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108
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109 return elseConnectableGuards;
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110 }
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111
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112 private GuardExpression findNegatedGuardInPrevious(GuardExpression guard) {
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113 SpecializationGroup previous = this.getPreviousGroup();
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114 if (previous == null) {
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115 return null;
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116 }
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117 List<GuardExpression> elseConnectedGuards = previous.findElseConnectableGuards();
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118
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119 if (previous == null || previous.getGuards().size() != elseConnectedGuards.size() + 1) {
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120 return null;
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121 }
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122
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123 /* Guard is else branch can be connected in previous specialization. */
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124 if (elseConnectedGuards.contains(guard)) {
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125 return guard;
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126 }
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127
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128 GuardExpression previousGuard = previous.getGuards().get(elseConnectedGuards.size());
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129 if (guard.getResolvedGuard().getMethod().equals(previousGuard.getResolvedGuard().getMethod()) && guard.isNegated() != previousGuard.isNegated()) {
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130 return guard;
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131 }
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132 return null;
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133 }
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134
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135 private void updateChildren(List<SpecializationGroup> childs) {
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136 if (!children.isEmpty()) {
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137 children.clear();
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138 }
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139 this.children.addAll(childs);
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140 for (SpecializationGroup child : childs) {
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141 child.parent = this;
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142 }
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143 }
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144
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145 public SpecializationGroup getParent() {
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146 return parent;
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147 }
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148
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149 public List<String> getAssumptions() {
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150 return assumptions;
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151 }
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152
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153 public List<TypeGuard> getTypeGuards() {
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154 return typeGuards;
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155 }
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156
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157 public List<GuardExpression> getGuards() {
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158 return guards;
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159 }
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160
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161 public List<SpecializationGroup> getChildren() {
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162 return children;
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163 }
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164
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165 public SpecializationData getSpecialization() {
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166 return specialization;
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167 }
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168
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169 private static SpecializationGroup combine(List<SpecializationGroup> groups) {
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170 if (groups.isEmpty()) {
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171 throw new IllegalArgumentException("empty combinations");
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172 }
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173 if (groups.size() == 1) {
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174 return null;
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175 }
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diff changeset
176
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diff changeset
177 List<String> assumptionMatches = new ArrayList<>();
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178 List<TypeGuard> typeGuardsMatches = new ArrayList<>();
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179 List<GuardExpression> guardMatches = new ArrayList<>();
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180
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181 SpecializationGroup first = groups.get(0);
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182 List<SpecializationGroup> others = groups.subList(1, groups.size());
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183
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184 outer: for (String assumption : first.assumptions) {
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185 for (SpecializationGroup other : others) {
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186 if (!other.assumptions.contains(assumption)) {
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187 // assumptions can be combined unordered
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188 continue outer;
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parents:
diff changeset
189 }
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parents:
diff changeset
190 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
191 assumptionMatches.add(assumption);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
192 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
193
11201
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diff changeset
194 outer: for (TypeGuard typeGuard : first.typeGuards) {
11195
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diff changeset
195 for (SpecializationGroup other : others) {
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diff changeset
196 if (!other.typeGuards.contains(typeGuard)) {
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197 // type guards can be combined unordered
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198 continue outer;
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diff changeset
199 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
200 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
201 typeGuardsMatches.add(typeGuard);
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parents:
diff changeset
202 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
203
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diff changeset
204 outer: for (GuardExpression guard : first.guards) {
11195
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parents:
diff changeset
205 for (SpecializationGroup other : others) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
206 if (!other.guards.contains(guard)) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
207 // we must break here. One guard may depend on the other.
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
208 break outer;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
209 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
210 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
211 guardMatches.add(guard);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
212 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
213
11442
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diff changeset
214 // check for guards for required type casts
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diff changeset
215 for (Iterator<GuardExpression> iterator = guardMatches.iterator(); iterator.hasNext();) {
bd28da642eea Truffle-DSL: Several new features implemented:
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parents: 13527
diff changeset
216 GuardExpression guardMatch = iterator.next();
11442
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diff changeset
217
11471
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diff changeset
218 int signatureIndex = 0;
16759
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diff changeset
219 for (Parameter parameter : guardMatch.getResolvedGuard().getParameters()) {
11471
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diff changeset
220 signatureIndex++;
11507
d6a5ab791b0d Truffle-DSL: fixed a bug in grouping of abstract guards.
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diff changeset
221 if (!parameter.getSpecification().isSignature()) {
11471
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diff changeset
222 continue;
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
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diff changeset
223 }
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
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parents: 11443
diff changeset
224
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
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diff changeset
225 TypeMirror guardType = parameter.getType();
11442
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diff changeset
226
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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diff changeset
227 // object guards can be safely moved up
16759
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diff changeset
228 if (ElementUtils.isObject(guardType)) {
11442
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diff changeset
229 continue;
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diff changeset
230 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
231
11471
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diff changeset
232 // generic guards can be safely moved up
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
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diff changeset
233 SpecializationData generic = first.node.getGenericSpecialization();
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
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parents: 11443
diff changeset
234 if (generic != null) {
16759
23415229349b Truffle-DSL: new package structure.
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diff changeset
235 Parameter genericParameter = generic.findParameter(parameter.getLocalName());
23415229349b Truffle-DSL: new package structure.
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diff changeset
236 if (genericParameter != null && ElementUtils.typeEquals(genericParameter.getType(), guardType)) {
11471
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
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diff changeset
237 continue;
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
Christian Humer <christian.humer@gmail.com>
parents: 11443
diff changeset
238 }
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
Christian Humer <christian.humer@gmail.com>
parents: 11443
diff changeset
239 }
5d72a3f5a31d Truffle-DSL: fixed a bug in else connections for specialization grouping.
Christian Humer <christian.humer@gmail.com>
parents: 11443
diff changeset
240
11442
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diff changeset
241 // signature index required for moving up guards
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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diff changeset
242 if (containsIndex(typeGuardsMatches, signatureIndex) || (first.getParent() != null && first.getParent().containsTypeGuardIndex(signatureIndex))) {
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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parents: 11201
diff changeset
243 continue;
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
244 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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parents: 11201
diff changeset
245
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
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diff changeset
246 iterator.remove();
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
247 break;
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
248 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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diff changeset
249 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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parents: 11201
diff changeset
250
11195
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parents:
diff changeset
251 if (assumptionMatches.isEmpty() && typeGuardsMatches.isEmpty() && guardMatches.isEmpty()) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
252 return null;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
253 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
254
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
255 for (SpecializationGroup group : groups) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
256 group.assumptions.removeAll(assumptionMatches);
11201
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parents: 11195
diff changeset
257 group.typeGuards.removeAll(typeGuardsMatches);
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diff changeset
258 group.guards.removeAll(guardMatches);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
259 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
260
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
261 List<SpecializationGroup> newChildren = new ArrayList<>(groups);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
262 return new SpecializationGroup(newChildren, assumptionMatches, typeGuardsMatches, guardMatches);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
263 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
264
11442
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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diff changeset
265 private boolean containsTypeGuardIndex(int index) {
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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diff changeset
266 if (containsIndex(typeGuards, index)) {
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
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diff changeset
267 return true;
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
268 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
269 if (parent != null) {
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
270 return parent.containsTypeGuardIndex(index);
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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parents: 11201
diff changeset
271 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
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diff changeset
272 return false;
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
273 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
274
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
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diff changeset
275 private static boolean containsIndex(List<TypeGuard> typeGuards, int signatureIndex) {
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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diff changeset
276 for (TypeGuard guard : typeGuards) {
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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parents: 11201
diff changeset
277 if (guard.signatureIndex == signatureIndex) {
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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diff changeset
278 return true;
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
279 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
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diff changeset
280 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
281 return false;
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
282 }
2868b55001d4 Truffle-DSL: fixed specializationg grouping failed with guards using base types.
Christian Humer <christian.humer@gmail.com>
parents: 11201
diff changeset
283
11443
b33783cbd8ce Truffle-DSL: refactored redundant guard generation code.
Christian Humer <christian.humer@gmail.com>
parents: 11442
diff changeset
284 public static SpecializationGroup create(SpecializationData specialization) {
b33783cbd8ce Truffle-DSL: refactored redundant guard generation code.
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285 return new SpecializationGroup(specialization);
b33783cbd8ce Truffle-DSL: refactored redundant guard generation code.
Christian Humer <christian.humer@gmail.com>
parents: 11442
diff changeset
286 }
b33783cbd8ce Truffle-DSL: refactored redundant guard generation code.
Christian Humer <christian.humer@gmail.com>
parents: 11442
diff changeset
287
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288 public static SpecializationGroup create(List<SpecializationData> specializations) {
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289 List<SpecializationGroup> groups = new ArrayList<>();
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
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290 for (SpecializationData specialization : specializations) {
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parents:
diff changeset
291 groups.add(new SpecializationGroup(specialization));
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Christian Humer <christian.humer@gmail.com>
parents:
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292 }
16755
bd28da642eea Truffle-DSL: Several new features implemented:
Christian Humer <christian.humer@gmail.com>
parents: 13527
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293 return new SpecializationGroup(createCombinationalGroups(groups), Collections.<String> emptyList(), Collections.<TypeGuard> emptyList(), Collections.<GuardExpression> emptyList());
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4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
294 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
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295
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
296 @Override
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
297 public String toString() {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
298 return "SpecializationGroup [assumptions=" + assumptions + ", typeGuards=" + typeGuards + ", guards=" + guards + "]";
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
299 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
300
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
301 private static List<SpecializationGroup> createCombinationalGroups(List<SpecializationGroup> groups) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
302 if (groups.size() <= 1) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
303 return groups;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
304 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
305 List<SpecializationGroup> newGroups = new ArrayList<>();
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
306
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
307 int i = 0;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
308 for (i = 0; i < groups.size();) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
309 SpecializationGroup combined = null;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
310 for (int j = groups.size(); j > i + 1; j--) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
311 combined = combine(groups.subList(i, j));
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
312 if (combined != null) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
313 break;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
314 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
315 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
316 SpecializationGroup newGroup;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
317 if (combined == null) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
318 newGroup = groups.get(i);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
319 i++;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
320 } else {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
321 newGroup = combined;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
322 List<SpecializationGroup> originalGroups = new ArrayList<>(combined.children);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
323 combined.updateChildren(createCombinationalGroups(originalGroups));
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
324 i += originalGroups.size();
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
325 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
326
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
327 newGroups.add(newGroup);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
328
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
329 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
330
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
331 return newGroups;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
332 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
333
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
334 public SpecializationGroup getPreviousGroup() {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
335 if (parent == null || parent.children.isEmpty()) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
336 return null;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
337 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
338 int index = parent.children.indexOf(this);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
339 if (index <= 0) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
340 return null;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
341 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
342 return parent.children.get(index - 1);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
343 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
344
12401
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
345 public int getUncheckedSpecializationIndex() {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
346 int groupMaxIndex = getMaxSpecializationIndex();
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
347
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
348 int genericIndex = node.getSpecializations().indexOf(node.getGenericSpecialization());
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
349 if (groupMaxIndex >= genericIndex) {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
350 // no minimum state check for an generic index
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
351 groupMaxIndex = -1;
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
352 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
353
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
354 if (groupMaxIndex > -1) {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
355 // no minimum state check if already checked by parent group
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
356 int parentMaxIndex = -1;
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
357 if (getParent() != null) {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
358 parentMaxIndex = getParent().getMaxSpecializationIndex();
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
359 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
360 if (groupMaxIndex == parentMaxIndex) {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
361 groupMaxIndex = -1;
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
362 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
363 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
364 return groupMaxIndex;
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
365 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
366
11195
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
367 public int getMaxSpecializationIndex() {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
368 if (specialization != null) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
369 return specialization.getNode().getSpecializations().indexOf(specialization);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
370 } else {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
371 int max = Integer.MIN_VALUE;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
372 for (SpecializationGroup childGroup : getChildren()) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
373 max = Math.max(max, childGroup.getMaxSpecializationIndex());
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
374 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
375 return max;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
376 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
377 }
11201
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
378
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
379 public static final class TypeGuard {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
380
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
381 private final int signatureIndex;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
382 private final TypeData type;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
383
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
384 public TypeGuard(TypeData type, int signatureIndex) {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
385 this.type = type;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
386 this.signatureIndex = signatureIndex;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
387 }
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
388
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
389 @Override
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
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390 public int hashCode() {
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391 final int prime = 31;
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392 int result = 1;
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393 result = prime * result + signatureIndex;
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394 result = prime * result + type.hashCode();
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395 return result;
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396 }
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397
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398 @Override
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399 public boolean equals(Object obj) {
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400 if (this == obj) {
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401 return true;
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402 } else if (obj == null) {
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403 return false;
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404 } else if (getClass() != obj.getClass()) {
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405 return false;
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406 }
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407
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408 TypeGuard other = (TypeGuard) obj;
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409 if (signatureIndex != other.signatureIndex) {
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410 return false;
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411 } else if (!type.equals(other.type)) {
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412 return false;
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413 }
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414 return true;
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415 }
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416
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417 public int getSignatureIndex() {
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418 return signatureIndex;
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419 }
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420
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421 public TypeData getType() {
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422 return type;
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423 }
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424 }
16755
bd28da642eea Truffle-DSL: Several new features implemented:
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parents: 13527
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425
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426 public boolean isTypeGuardUsedInAnyGuardBelow(ProcessorContext context, SpecializationData source, TypeGuard typeGuard) {
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parents: 13527
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427
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428 for (GuardExpression guard : guards) {
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23415229349b Truffle-DSL: new package structure.
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429 Parameter guardParameter = guard.getResolvedGuard().getSignatureParameter(typeGuard.getSignatureIndex());
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parents: 13527
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430 if (guardParameter == null) {
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431 // guardParameters are optional
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432 continue;
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433 }
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434 Parameter sourceParameter = source.getSignatureParameter(typeGuard.getSignatureIndex());
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435 if (sourceParameter.getTypeSystemType().needsCastTo(guardParameter.getType())) {
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436 return true;
bd28da642eea Truffle-DSL: Several new features implemented:
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parents: 13527
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437 }
bd28da642eea Truffle-DSL: Several new features implemented:
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parents: 13527
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438 }
bd28da642eea Truffle-DSL: Several new features implemented:
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439
bd28da642eea Truffle-DSL: Several new features implemented:
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440 for (SpecializationGroup group : getChildren()) {
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441 if (group.isTypeGuardUsedInAnyGuardBelow(context, source, typeGuard)) {
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442 return true;
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443 }
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parents: 13527
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444 }
bd28da642eea Truffle-DSL: Several new features implemented:
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parents: 13527
diff changeset
445
bd28da642eea Truffle-DSL: Several new features implemented:
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446 return false;
bd28da642eea Truffle-DSL: Several new features implemented:
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parents: 13527
diff changeset
447 }
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4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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448 }