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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/NodeFactoryFactory.java @ 18752:1acaa69ff61b

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Truffle-DSL: refactor generator classes
author Christian Humer <christian.humer@gmail.com>
date Mon, 29 Dec 2014 23:38:16 +0100
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children f6b8787dc113
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18752
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1 /*
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2 * Copyright (c) 2014, 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.generator;
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24
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25 import static com.oracle.truffle.dsl.processor.java.ElementUtils.*;
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26 import static javax.lang.model.element.Modifier.*;
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27
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28 import java.util.*;
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29
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30 import javax.lang.model.element.*;
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31 import javax.lang.model.type.*;
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32 import javax.lang.model.util.*;
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33
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34 import com.oracle.truffle.api.dsl.*;
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35 import com.oracle.truffle.dsl.processor.java.*;
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36 import com.oracle.truffle.dsl.processor.java.model.*;
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37 import com.oracle.truffle.dsl.processor.java.model.CodeTypeMirror.ArrayCodeTypeMirror;
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38 import com.oracle.truffle.dsl.processor.model.*;
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39
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40 class NodeFactoryFactory extends AbstractClassElementFactory<NodeData> {
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41
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42 static final String FACTORY_METHOD_NAME = "create0";
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43
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44 private final Map<NodeData, List<TypeElement>> childTypes;
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45 private CodeTypeElement generatedNode;
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46
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47 NodeFactoryFactory(Map<NodeData, List<TypeElement>> childElements) {
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48 this.childTypes = childElements;
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49 }
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50
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51 private static String factoryClassName(NodeData node) {
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52 return node.getNodeId() + "Factory";
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53 }
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54
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55 @Override
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56 protected CodeTypeElement create(NodeData node) {
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57 Modifier visibility = ElementUtils.getVisibility(node.getTemplateType().getModifiers());
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58
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59 CodeTypeElement clazz = createClass(node, modifiers(), factoryClassName(node), null, false);
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60 if (visibility != null) {
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61 clazz.getModifiers().add(visibility);
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62 }
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63 clazz.getModifiers().add(Modifier.FINAL);
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64 return clazz;
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65 }
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66
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67 @Override
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68 protected void createChildren(NodeData node) {
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69 CodeTypeElement clazz = getElement();
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70
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71 Modifier createVisibility = ElementUtils.getVisibility(clazz.getModifiers());
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72
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73 if (node.needsFactory()) {
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74 NodeBaseFactory factory = new NodeBaseFactory();
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75 add(factory, node.getGenericSpecialization() == null ? node.getSpecializations().get(0) : node.getGenericSpecialization());
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76 generatedNode = factory.getElement();
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77
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78 createFactoryMethods(node, clazz, createVisibility);
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79
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80 for (SpecializationData specialization : node.getSpecializations()) {
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81 if (!specialization.isReachable() || specialization.isGeneric()) {
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82 continue;
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83 }
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84
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85 if (specialization.isPolymorphic() && node.isPolymorphic(context)) {
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86 PolymorphicNodeFactory polymorphicFactory = new PolymorphicNodeFactory(generatedNode);
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87 add(polymorphicFactory, specialization);
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88 continue;
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89 }
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90
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91 add(new SpecializedNodeFactory(generatedNode), specialization);
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92 }
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93
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94 TypeMirror nodeFactory = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(getContext().getTruffleTypes().getNodeFactoryBase()), node.getNodeType());
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95 clazz.setSuperClass(nodeFactory);
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96 clazz.add(createNodeFactoryConstructor(node));
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97 clazz.add(createCreateNodeMethod(node));
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98 clazz.add(createGetInstanceMethod(node, createVisibility));
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99 clazz.add(createInstanceConstant(node, clazz.asType()));
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100 }
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101
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102 for (NodeData childNode : childTypes.keySet()) {
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103 if (childNode.getTemplateType().getModifiers().contains(Modifier.PRIVATE)) {
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104 continue;
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105 }
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106
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107 for (TypeElement type : childTypes.get(childNode)) {
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108 Set<Modifier> typeModifiers = ((CodeTypeElement) type).getModifiers();
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109 Modifier visibility = ElementUtils.getVisibility(type.getModifiers());
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110 typeModifiers.clear();
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111 if (visibility != null) {
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112 typeModifiers.add(visibility);
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113 }
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114
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115 typeModifiers.add(Modifier.STATIC);
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116 typeModifiers.add(Modifier.FINAL);
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117 clazz.add(type);
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118 }
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119 }
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120
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121 List<NodeData> children = node.getNodeDeclaringChildren();
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122 if (node.getDeclaringNode() == null && children.size() > 0) {
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123 clazz.add(createGetFactories(node));
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124 }
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125
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126 }
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127
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128 private Element createNodeFactoryConstructor(NodeData node) {
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129 CodeExecutableElement method = new CodeExecutableElement(modifiers(PRIVATE), null, factoryClassName(node));
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130 CodeTreeBuilder builder = method.createBuilder();
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131 builder.startStatement();
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132 builder.startCall("super");
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133
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134 // node type
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135 builder.typeLiteral(node.getNodeType());
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136
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137 // execution signature
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138 builder.startGroup();
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139 if (node.getChildExecutions().isEmpty()) {
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140 builder.staticReference(context.getTruffleTypes().getDslMetadata(), NodeBaseFactory.EMPTY_CLASS_ARRAY);
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141 } else {
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142 builder.startNewArray(new ArrayCodeTypeMirror(context.getType(Class.class)), null);
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diff changeset
143 for (NodeExecutionData execution : node.getChildExecutions()) {
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diff changeset
144 builder.typeLiteral(execution.getNodeType());
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145 }
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diff changeset
146 builder.end();
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147 }
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148 builder.end();
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149
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150 // node signatures
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diff changeset
151 builder.startGroup();
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152 builder.startNewArray(new ArrayCodeTypeMirror(new ArrayCodeTypeMirror(context.getType(Class.class))), null);
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153 List<ExecutableElement> constructors = NodeBaseFactory.findUserConstructors(generatedNode.asType());
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154 for (ExecutableElement constructor : constructors) {
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diff changeset
155 builder.startGroup();
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diff changeset
156 if (constructor.getParameters().isEmpty()) {
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157 builder.staticReference(context.getTruffleTypes().getDslMetadata(), NodeBaseFactory.EMPTY_CLASS_ARRAY);
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158 } else {
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159 builder.startNewArray(new ArrayCodeTypeMirror(context.getType(Class.class)), null);
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160 for (VariableElement var : constructor.getParameters()) {
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diff changeset
161 builder.typeLiteral(var.asType());
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162 }
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163 builder.end();
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164 }
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165 builder.end();
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166 }
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167 builder.end();
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168 builder.end();
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169
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170 builder.end().end().end();
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171 return method;
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172 }
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173
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174 private CodeExecutableElement createCreateNodeMethod(NodeData node) {
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175 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), node.getNodeType(), "createNode");
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176 CodeVariableElement arguments = new CodeVariableElement(getContext().getType(Object.class), "arguments");
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177 method.setVarArgs(true);
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178 method.addParameter(arguments);
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179
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180 CodeTreeBuilder builder = method.createBuilder();
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181 List<ExecutableElement> signatures = NodeBaseFactory.findUserConstructors(generatedNode.asType());
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182 boolean ifStarted = false;
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183
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184 for (ExecutableElement element : signatures) {
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185 ifStarted = builder.startIf(ifStarted);
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diff changeset
186 builder.string("arguments.length == " + element.getParameters().size());
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187
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188 int index = 0;
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189 for (VariableElement param : element.getParameters()) {
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diff changeset
190 if (ElementUtils.isObject(param.asType())) {
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191 continue;
1acaa69ff61b Truffle-DSL: refactor generator classes
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192 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
193 builder.string(" && ");
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diff changeset
194 if (!param.asType().getKind().isPrimitive()) {
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
195 builder.string("(arguments[" + index + "] == null || ");
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Christian Humer <christian.humer@gmail.com>
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diff changeset
196 }
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
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diff changeset
197 builder.string("arguments[" + index + "] instanceof ");
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diff changeset
198 builder.type(ElementUtils.boxType(getContext(), param.asType()));
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diff changeset
199 if (!param.asType().getKind().isPrimitive()) {
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diff changeset
200 builder.string(")");
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
201 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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202 index++;
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
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203 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
204 builder.end();
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Christian Humer <christian.humer@gmail.com>
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diff changeset
205 builder.startBlock();
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206
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diff changeset
207 builder.startReturn().startCall("create");
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208 index = 0;
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Christian Humer <christian.humer@gmail.com>
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diff changeset
209 for (VariableElement param : element.getParameters()) {
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parents:
diff changeset
210 builder.startGroup();
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parents:
diff changeset
211 if (!ElementUtils.isObject(param.asType())) {
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parents:
diff changeset
212 builder.string("(").type(param.asType()).string(") ");
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213 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
214 builder.string("arguments[").string(String.valueOf(index)).string("]");
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215 builder.end();
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parents:
diff changeset
216 index++;
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
217 }
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
218 builder.end().end();
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219
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220 builder.end(); // block
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221 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
222
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
223 builder.startElseBlock();
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
224 builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class));
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diff changeset
225 builder.doubleQuote("Invalid create signature.");
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
226 builder.end().end();
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
227 builder.end(); // else block
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parents:
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228 return method;
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diff changeset
229 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
230
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
231 private ExecutableElement createGetInstanceMethod(NodeData node, Modifier visibility) {
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parents:
diff changeset
232 TypeElement nodeFactoryType = ElementUtils.fromTypeMirror(getContext().getType(NodeFactory.class));
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parents:
diff changeset
233 TypeMirror returnType = ElementUtils.getDeclaredType(nodeFactoryType, node.getNodeType());
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diff changeset
234
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
235 CodeExecutableElement method = new CodeExecutableElement(modifiers(), returnType, "getInstance");
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parents:
diff changeset
236 if (visibility != null) {
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
237 method.getModifiers().add(visibility);
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
238 }
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
239 method.getModifiers().add(Modifier.STATIC);
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parents:
diff changeset
240
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
241 String varName = instanceVarName(node);
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parents:
diff changeset
242
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
243 CodeTreeBuilder builder = method.createBuilder();
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
244 builder.startIf();
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
245 builder.string(varName).string(" == null");
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
246 builder.end().startBlock();
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
247
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
248 builder.startStatement();
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
249 builder.string(varName);
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
250 builder.string(" = ");
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
251 builder.startNew(factoryClassName(node)).end();
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
252 builder.end();
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
253
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
254 builder.end();
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
255 builder.startReturn().string(varName).end();
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Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
256 return method;
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
257 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
258
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
259 private static String instanceVarName(NodeData node) {
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
260 if (node.getDeclaringNode() != null) {
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
261 return ElementUtils.firstLetterLowerCase(factoryClassName(node)) + "Instance";
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parents:
diff changeset
262 } else {
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
263 return "instance";
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
264 }
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
265 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
266
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
267 private static CodeVariableElement createInstanceConstant(NodeData node, TypeMirror factoryType) {
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diff changeset
268 String varName = instanceVarName(node);
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
269 CodeVariableElement var = new CodeVariableElement(modifiers(), factoryType, varName);
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parents:
diff changeset
270 var.getModifiers().add(Modifier.PRIVATE);
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
271 var.getModifiers().add(Modifier.STATIC);
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parents:
diff changeset
272 return var;
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
273 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
274
1acaa69ff61b Truffle-DSL: refactor generator classes
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diff changeset
275 private ExecutableElement createGetFactories(NodeData node) {
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
276 List<NodeData> children = node.getNodeDeclaringChildren();
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Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
277 if (node.needsFactory()) {
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
278 children.add(node);
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parents:
diff changeset
279 }
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
280
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
281 List<TypeMirror> nodeTypesList = new ArrayList<>();
1acaa69ff61b Truffle-DSL: refactor generator classes
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
282 TypeMirror prev = null;
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Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
283 boolean allSame = true;
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
284 for (NodeData child : children) {
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
diff changeset
285 nodeTypesList.add(child.getNodeType());
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parents:
diff changeset
286 if (prev != null && !ElementUtils.typeEquals(child.getNodeType(), prev)) {
1acaa69ff61b Truffle-DSL: refactor generator classes
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parents:
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287 allSame = false;
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288 }
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289 prev = child.getNodeType();
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290 }
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291 TypeMirror commonNodeSuperType = ElementUtils.getCommonSuperType(getContext(), nodeTypesList.toArray(new TypeMirror[nodeTypesList.size()]));
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292
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293 Types types = getContext().getEnvironment().getTypeUtils();
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294 TypeMirror factoryType = getContext().getType(NodeFactory.class);
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295 TypeMirror baseType;
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296 if (allSame) {
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297 baseType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(factoryType), commonNodeSuperType);
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298 } else {
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299 baseType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(factoryType), types.getWildcardType(commonNodeSuperType, null));
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300 }
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301 TypeMirror listType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(getContext().getType(List.class)), baseType);
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302
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303 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), listType, "getFactories");
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304
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305 CodeTreeBuilder builder = method.createBuilder();
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306 builder.startReturn();
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307 builder.startStaticCall(getContext().getType(Arrays.class), "asList");
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308
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309 for (NodeData child : children) {
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310 builder.startGroup();
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311 NodeData childNode = child;
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312 List<NodeData> factories = new ArrayList<>();
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313 while (childNode.getDeclaringNode() != null) {
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314 factories.add(childNode);
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315 childNode = childNode.getDeclaringNode();
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316 }
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317 Collections.reverse(factories);
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318 for (NodeData nodeData : factories) {
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319 builder.string(factoryClassName(nodeData)).string(".");
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320 }
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321 builder.string("getInstance()");
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322 builder.end();
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323 }
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324 builder.end();
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325 builder.end();
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326 return method;
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327 }
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328
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329 private void createFactoryMethods(NodeData node, CodeTypeElement clazz, Modifier createVisibility) {
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330 List<ExecutableElement> constructors = NodeBaseFactory.findUserConstructors(generatedNode.asType());
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331 for (ExecutableElement constructor : constructors) {
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332 clazz.add(createCreateMethod(node, createVisibility, constructor));
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333 }
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334 }
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335
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336 private CodeExecutableElement createCreateMethod(NodeData node, Modifier visibility, ExecutableElement constructor) {
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337 CodeExecutableElement method = CodeExecutableElement.clone(getContext().getEnvironment(), constructor);
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338 method.setSimpleName(CodeNames.of("create"));
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339 method.getModifiers().clear();
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340 if (visibility != null) {
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341 method.getModifiers().add(visibility);
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342 }
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343 method.getModifiers().add(Modifier.STATIC);
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344 method.setReturnType(node.getNodeType());
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345
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346 CodeTreeBuilder body = method.createBuilder();
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347 body.startReturn();
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348 if (node.getSpecializations().isEmpty()) {
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349 body.nullLiteral();
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350 } else {
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351 body.startCall(NodeBaseFactory.nodeSpecializationClassName(node.getSpecializations().get(0)), FACTORY_METHOD_NAME);
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352 for (VariableElement var : method.getParameters()) {
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353 body.string(var.getSimpleName().toString());
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354 }
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355 body.end();
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356 }
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357 body.end();
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358 return method;
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359 }
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360
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361 }